The adoption of employee share ownership plans (ESOPs) in Nigeria
- Authors: Akponah, Voke Blessing
- Date: 2017
- Subjects: Employee ownership -- Nigeria , Profit-sharing -- Nigeria Management -- Employee participation -- Nigeria Nigeria -- Economic aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13834 , vital:27312
- Description: This study investigated the factors that influence the adoption of ESOPs in Nigeria. Furthermore, the study investigated the influence of the adoption of ESOPs on organisational performance, employee retention and employee commitment. The study results reveal that trade union responsiveness, reforms, awareness of employee benefits and taxation implication positively influence the adoption of ESOPs based on transparency. The results in this study further reveal that trade union responsiveness, takeovers, reforms, awareness of employee benefits and taxation implication effectively influence the adoption of ESOPs based on two-way communication. In addition, the study results reveal that trade union responsiveness, takeovers, reforms, awareness of employee benefits and trust positively influence the adoption of ESOPs based on empowerment. The study further reveals that adoption of ESOPs based on transparency, two-way communication and empowerment leads to organisational performance, employee retention and employee commitment. This study, being the first of its kind in Nigeria, filled the gap that existed in the Nigerian literature in respect of the awareness and adoption of ESOPs. This study provides literature and theoretical model that can be used as a foundation by organisations and the government to start up the adoption of ESOPs. This study showed that ESOPs is beneficial to boost the economy, enhance desired organisational outcomes (organisational performance, employee retention and employee commitment) and meet the financial and retirement needs of employees. However, for organisations and employees to enjoy the full benefits of ESOPs, underlying forces such as, trade union responsiveness, takeovers, reforms, awareness of employee benefits, trusts and taxation implication must be taken into account. Furthermore, the adoption, implementation and operations of ESOPs will be successful management, trade union leaders and employees utilise strategies such as, transparency, two-way communication and empowerment.
- Full Text:
- Date Issued: 2017
- Authors: Akponah, Voke Blessing
- Date: 2017
- Subjects: Employee ownership -- Nigeria , Profit-sharing -- Nigeria Management -- Employee participation -- Nigeria Nigeria -- Economic aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13834 , vital:27312
- Description: This study investigated the factors that influence the adoption of ESOPs in Nigeria. Furthermore, the study investigated the influence of the adoption of ESOPs on organisational performance, employee retention and employee commitment. The study results reveal that trade union responsiveness, reforms, awareness of employee benefits and taxation implication positively influence the adoption of ESOPs based on transparency. The results in this study further reveal that trade union responsiveness, takeovers, reforms, awareness of employee benefits and taxation implication effectively influence the adoption of ESOPs based on two-way communication. In addition, the study results reveal that trade union responsiveness, takeovers, reforms, awareness of employee benefits and trust positively influence the adoption of ESOPs based on empowerment. The study further reveals that adoption of ESOPs based on transparency, two-way communication and empowerment leads to organisational performance, employee retention and employee commitment. This study, being the first of its kind in Nigeria, filled the gap that existed in the Nigerian literature in respect of the awareness and adoption of ESOPs. This study provides literature and theoretical model that can be used as a foundation by organisations and the government to start up the adoption of ESOPs. This study showed that ESOPs is beneficial to boost the economy, enhance desired organisational outcomes (organisational performance, employee retention and employee commitment) and meet the financial and retirement needs of employees. However, for organisations and employees to enjoy the full benefits of ESOPs, underlying forces such as, trade union responsiveness, takeovers, reforms, awareness of employee benefits, trusts and taxation implication must be taken into account. Furthermore, the adoption, implementation and operations of ESOPs will be successful management, trade union leaders and employees utilise strategies such as, transparency, two-way communication and empowerment.
- Full Text:
- Date Issued: 2017
The assembly of p-aryl triazole foldamers into double and other super- helical structures
- Okerio, Jaspher Mosomi, Klumperman, Bert
- Authors: Okerio, Jaspher Mosomi , Klumperman, Bert
- Date: 2017
- Subjects: Supramolecular chemistry Chemistry
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/20548 , vital:29319
- Description: The assembly of poly(para-aryltriazoles) (pPATs), synthesized via Cu(I)-catalysed azide-alkyne cycloaddition, into highly ordered structures is investigated. Firstly, the assembly of the pPATs into double helical structures, as a function of solvent quality and side chain chirality, was studied. The solvents employed (DMF and water) induced changes in van der Waals forces and surface free energy thus influencing the order of the pPATs’ random coils into double helical structures. The observed double helical structures, assembly that was analyzed using ultraviolet-visible (UV-Vis) specroscopy, circular dichroism (CD) spectroscopy, scanning transmission electron microscopy (STEM) and confocal fluorescence imaging microscopy upon addition of 0 – 80% water into the pPATs’ random coils, exhibit stable morphologies stabilized by π-π stacking and hydrogen bonding at 80% water content. The pPATs exist as random coils at 10% water in DMF. At 40% water in DMF, the pPATs’ strands were observed to exist in a side-by-side orientation. The adjacent strands, side by side, intertwine into double helices and eventually stack as the amount of water is increased to 80%. The obtained results present a facile strategy for the fabrication of polymeric double helical structures with stable morphologies. The average diameter of the resulting one-handed and opposite handed double helical structures is about 200 nm, a pitch of 170 nm and an overall length of several micrometres. The assembly of the pPATs into ordered structures in the presence of a neutral organic template and anions was also assessed. Hydrophobic poly(γ-benzyl-L-glutamate) (PBLG) template was introduced at various concentrations and transition region of the pPATs (10% water in DMF). At this stage the PBLG template is CD inactive. The template modified the assembly mechanism to afford structures, which cannot be achieved in its absence. It disallows the organization of the pPATs into double helical structures. The pPATs strands thread around the template and stack into long tubules of up to 10 microns and irregular diameter. The irregular diameter is attributed to uneven threading of pPATs strands around the template at some sections. The sensitivity and binding ability of the pPAT system to halide ions such as F-, Cl- and Br- , which involves re-organization of the aryl-triazole bonds, is explored using NMR and UV-Vis and CD spectroscopies. Br- which induces the highest shift of the triazole C-H proton signal in the NMR analysis also shows the highest dynamic quenching of the pPATs’ UV-Vis and CD spectra. The UV-Vis and CD signals are linearly dependent on the concentration of the anions. This confirms non-aggregation assembly in the presence of anions. Conclusively, the pPATs interact with the bromide anion in aqueous solution, which consequently prevents the aggregation of the foldamers. Finally, using PATs with different amounts of chiral side chains, co-operativity among side chains that leads to transfer, propagation and amplification of chirality is confirmed. A non-linear dependence of the CD signal on the amount of chiral side chains was observed. Chiral amplification was observed as low as 1% of the chiral side chains. However, approximately 20% of the chiral side chains are needed to obtain half the intensity of the cotton effect exhibited by the homochiral pPAT.
- Full Text:
- Date Issued: 2017
- Authors: Okerio, Jaspher Mosomi , Klumperman, Bert
- Date: 2017
- Subjects: Supramolecular chemistry Chemistry
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/20548 , vital:29319
- Description: The assembly of poly(para-aryltriazoles) (pPATs), synthesized via Cu(I)-catalysed azide-alkyne cycloaddition, into highly ordered structures is investigated. Firstly, the assembly of the pPATs into double helical structures, as a function of solvent quality and side chain chirality, was studied. The solvents employed (DMF and water) induced changes in van der Waals forces and surface free energy thus influencing the order of the pPATs’ random coils into double helical structures. The observed double helical structures, assembly that was analyzed using ultraviolet-visible (UV-Vis) specroscopy, circular dichroism (CD) spectroscopy, scanning transmission electron microscopy (STEM) and confocal fluorescence imaging microscopy upon addition of 0 – 80% water into the pPATs’ random coils, exhibit stable morphologies stabilized by π-π stacking and hydrogen bonding at 80% water content. The pPATs exist as random coils at 10% water in DMF. At 40% water in DMF, the pPATs’ strands were observed to exist in a side-by-side orientation. The adjacent strands, side by side, intertwine into double helices and eventually stack as the amount of water is increased to 80%. The obtained results present a facile strategy for the fabrication of polymeric double helical structures with stable morphologies. The average diameter of the resulting one-handed and opposite handed double helical structures is about 200 nm, a pitch of 170 nm and an overall length of several micrometres. The assembly of the pPATs into ordered structures in the presence of a neutral organic template and anions was also assessed. Hydrophobic poly(γ-benzyl-L-glutamate) (PBLG) template was introduced at various concentrations and transition region of the pPATs (10% water in DMF). At this stage the PBLG template is CD inactive. The template modified the assembly mechanism to afford structures, which cannot be achieved in its absence. It disallows the organization of the pPATs into double helical structures. The pPATs strands thread around the template and stack into long tubules of up to 10 microns and irregular diameter. The irregular diameter is attributed to uneven threading of pPATs strands around the template at some sections. The sensitivity and binding ability of the pPAT system to halide ions such as F-, Cl- and Br- , which involves re-organization of the aryl-triazole bonds, is explored using NMR and UV-Vis and CD spectroscopies. Br- which induces the highest shift of the triazole C-H proton signal in the NMR analysis also shows the highest dynamic quenching of the pPATs’ UV-Vis and CD spectra. The UV-Vis and CD signals are linearly dependent on the concentration of the anions. This confirms non-aggregation assembly in the presence of anions. Conclusively, the pPATs interact with the bromide anion in aqueous solution, which consequently prevents the aggregation of the foldamers. Finally, using PATs with different amounts of chiral side chains, co-operativity among side chains that leads to transfer, propagation and amplification of chirality is confirmed. A non-linear dependence of the CD signal on the amount of chiral side chains was observed. Chiral amplification was observed as low as 1% of the chiral side chains. However, approximately 20% of the chiral side chains are needed to obtain half the intensity of the cotton effect exhibited by the homochiral pPAT.
- Full Text:
- Date Issued: 2017
The contribution of non-timber forest products to rural livelihoods and their price determination in different agro-ecological zones of South Africa
- Authors: Mugido, Worship
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/5176 , vital:20783
- Description: A large number of studies have been conducted on the contribution of different types of non-timber forest products (NTFPs) to rural livelihoods. However, not many of these have considered the context in which these contributions are made, especially agro-ecological potential. Similarly, there are few studies that focus on the price setting of NTFPs in different settings as most are based on a single or relatively few sites. Thus, there is no indication of the prevalence of the different factors within a uniform macro context, nor how they might vary between different types of NTFPs. Therefore, the aim of this thesis was to establish the contribution of NTFPs to rural livelihoods and their price determination in areas of varying agro-ecological potential of South Africa. The study used data from 1 200 randomly selected households across four agro-ecological zones of South Africa to quantify the contribution of NTFP income to total household income, the proportion of households selling at least a single NTFP and the nature and extent of use of NTFPs as safety nets in areas of varying agro-ecological potential. In addition, 300 sellers of NTFPs in 15 towns across South Africa were interviewed to assess the factors they take into account when setting prices. The findings of this study support the argument that the level of dependence on NFTPs varies with agro-ecological conditions. This was supported by the significant difference between the NTFP incomes of the following pairs of agro-ecological classes: very low and low, medium and high. About 6.4 % households reported selling one or more NTFPs for various reasons, with many (39 %) citing the need to earn cash income and limited employment opportunities (16.9 %). Income from trading NTFPs is undoubtedly an important source of cash income for many rural households. Thus, 300 sellers, selling either at home or in town, were interviewed and the majority (79.3 %) of the sellers reported that selling NTFPs was their main source of cash household income, with only 8 % and 5.7 % receiving their main cash household income from state child grants and state pension grants, respectively. The pricing factors considered by sellers when setting the prices of NTFPs tended to vary with the type of NTFP being sold, type of market (home markets or urban markets) and the method used by the seller to procure the stock. However, overall, transport costs (29 %), stock price (18.4 %), profit margin (12.7 %), time taken to collect or produce the product (7.3 %) and the market price (6.4 %) were the widely used factors to determine prices for NTFPs. The reported various pricing factors showed that there was no formal or certain price mechanism that was used by the sellers of NTFPs to establish the market prices of NTFPs. The study found that about 79 % of the total households interviewed experienced at least one shock of some magnitude in the previous 12 months. The most common shocks were illness (43 %), death (42 %), crop failure (29 %) and hunger (22 %). The households employed various coping strategies (21) in response to different types of shocks, with the three widely used strategies being assistance from friends and relatives (60.1 %), using cash savings (37.9%) and using NTFPs (35.6 %). Shocks, hunger or food shortage and crop failure were significantly and positively related to the usage of NTFPs as safety nets. Therefore, households who experienced hunger or food shortage and crop failure were likely to use NTFPs to cope with these shocks. The study concluded that NTFPs are an integral part of the rural livelihoods, especially for the households living close to the survival line.
- Full Text:
- Date Issued: 2017
- Authors: Mugido, Worship
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/5176 , vital:20783
- Description: A large number of studies have been conducted on the contribution of different types of non-timber forest products (NTFPs) to rural livelihoods. However, not many of these have considered the context in which these contributions are made, especially agro-ecological potential. Similarly, there are few studies that focus on the price setting of NTFPs in different settings as most are based on a single or relatively few sites. Thus, there is no indication of the prevalence of the different factors within a uniform macro context, nor how they might vary between different types of NTFPs. Therefore, the aim of this thesis was to establish the contribution of NTFPs to rural livelihoods and their price determination in areas of varying agro-ecological potential of South Africa. The study used data from 1 200 randomly selected households across four agro-ecological zones of South Africa to quantify the contribution of NTFP income to total household income, the proportion of households selling at least a single NTFP and the nature and extent of use of NTFPs as safety nets in areas of varying agro-ecological potential. In addition, 300 sellers of NTFPs in 15 towns across South Africa were interviewed to assess the factors they take into account when setting prices. The findings of this study support the argument that the level of dependence on NFTPs varies with agro-ecological conditions. This was supported by the significant difference between the NTFP incomes of the following pairs of agro-ecological classes: very low and low, medium and high. About 6.4 % households reported selling one or more NTFPs for various reasons, with many (39 %) citing the need to earn cash income and limited employment opportunities (16.9 %). Income from trading NTFPs is undoubtedly an important source of cash income for many rural households. Thus, 300 sellers, selling either at home or in town, were interviewed and the majority (79.3 %) of the sellers reported that selling NTFPs was their main source of cash household income, with only 8 % and 5.7 % receiving their main cash household income from state child grants and state pension grants, respectively. The pricing factors considered by sellers when setting the prices of NTFPs tended to vary with the type of NTFP being sold, type of market (home markets or urban markets) and the method used by the seller to procure the stock. However, overall, transport costs (29 %), stock price (18.4 %), profit margin (12.7 %), time taken to collect or produce the product (7.3 %) and the market price (6.4 %) were the widely used factors to determine prices for NTFPs. The reported various pricing factors showed that there was no formal or certain price mechanism that was used by the sellers of NTFPs to establish the market prices of NTFPs. The study found that about 79 % of the total households interviewed experienced at least one shock of some magnitude in the previous 12 months. The most common shocks were illness (43 %), death (42 %), crop failure (29 %) and hunger (22 %). The households employed various coping strategies (21) in response to different types of shocks, with the three widely used strategies being assistance from friends and relatives (60.1 %), using cash savings (37.9%) and using NTFPs (35.6 %). Shocks, hunger or food shortage and crop failure were significantly and positively related to the usage of NTFPs as safety nets. Therefore, households who experienced hunger or food shortage and crop failure were likely to use NTFPs to cope with these shocks. The study concluded that NTFPs are an integral part of the rural livelihoods, especially for the households living close to the survival line.
- Full Text:
- Date Issued: 2017
The design and testing of a national estuarine monitoring prgramme for South Africa
- Authors: Cilliers, Gerhard Jordaan
- Date: 2017
- Subjects: Estuaries -- South Africa Berg Estuary (South Africa)
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/15490 , vital:28258
- Description: Adaptive water resource management requires sound scientific based decisions, emanating from robust scientific data. The Department of Environmental Affairs are mandated for collaborative management of the South African coast, including estuaries, through the Integrated Coastal Management Act (Act no 24 of 2008) (ICMA). The Department Water and Sanitation is mandated through the National Water Act (Act no 36 of 1998) (NWA) to design, test and implement monitoring programmes to provide water resource data. Extensive freshwater monitoring programmes exist in South Africa but there is no standard long-term monitoring programme for estuaries. This study designed and tested a National Estuarine Monitoring Programme (NESMP) that is anchored in the NWA and the ICMA. The design was based on a review of international estuary monitoring programmes, consultation with relevant role players and five decades experience in the design, testing and implementation of water resource monitoring programmes by DWS. The main objective of this thesis is 1) to design a national estuarine monitoring programme 2) test the design of the programme for practical implementation by reflecting on collected data from case studies, and 3) design a Decision Support System to translate complex monitoring data into management information. The main objective of the NESMP is 1) to collect long-term data to determine trends in the condition of estuaries in South Africa and 2) to provide management orientated information for effective estuary management. The National Estuary Monitoring programme consists of three tiers. Tier 1 focuses on basic data including system variables and nutrient data. Tier 2 collects data required for the determination of the Ecological Water Requirements (EWR) of estuaries in accordance with a standardised method used by DWS. A tailor made monitoring programme addressing specific issues including pollution incidents and localised development pressure, making use of a combination of Tier 1 and Tier 2 components, forms Tier 3 of the NESMP. This study tested the Tier 1 components of the programme on 28 estuaries across the South African coast since 2012. However, due to space constraints, the data reflected on in this thesis, is only for case studies on the Berg and Breede estuaries between 2012 and 2016. The results indicate that the establishment and operation of the NESMP on South African estuaries making use of monthly surveys, and the deployment of permanent water quality loggers, in line with the proposed protocol, are possible. This does however require collaboration with other role players in order to share responsibility and associated resources. A tiered management structure ensures national, regional and local level implementation takes place seamlessly. A decision support system (DSS) was also designed as part of this thesis to assist with data interpretation and the creation of management orientated information. This DSS includes a measurement of the percentage exceedance of the Threshold of Potential Concern (TPC), which acts as an early warning system for water resource deterioration. This study showed that effective collaboration will ensure the sustainability of the NESMP. Implementation of the more complex and resource intensive Tier 2 and Tier 3 sampling will however need to be investigated to establish the overall success of the NESMP.
- Full Text:
- Date Issued: 2017
- Authors: Cilliers, Gerhard Jordaan
- Date: 2017
- Subjects: Estuaries -- South Africa Berg Estuary (South Africa)
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/15490 , vital:28258
- Description: Adaptive water resource management requires sound scientific based decisions, emanating from robust scientific data. The Department of Environmental Affairs are mandated for collaborative management of the South African coast, including estuaries, through the Integrated Coastal Management Act (Act no 24 of 2008) (ICMA). The Department Water and Sanitation is mandated through the National Water Act (Act no 36 of 1998) (NWA) to design, test and implement monitoring programmes to provide water resource data. Extensive freshwater monitoring programmes exist in South Africa but there is no standard long-term monitoring programme for estuaries. This study designed and tested a National Estuarine Monitoring Programme (NESMP) that is anchored in the NWA and the ICMA. The design was based on a review of international estuary monitoring programmes, consultation with relevant role players and five decades experience in the design, testing and implementation of water resource monitoring programmes by DWS. The main objective of this thesis is 1) to design a national estuarine monitoring programme 2) test the design of the programme for practical implementation by reflecting on collected data from case studies, and 3) design a Decision Support System to translate complex monitoring data into management information. The main objective of the NESMP is 1) to collect long-term data to determine trends in the condition of estuaries in South Africa and 2) to provide management orientated information for effective estuary management. The National Estuary Monitoring programme consists of three tiers. Tier 1 focuses on basic data including system variables and nutrient data. Tier 2 collects data required for the determination of the Ecological Water Requirements (EWR) of estuaries in accordance with a standardised method used by DWS. A tailor made monitoring programme addressing specific issues including pollution incidents and localised development pressure, making use of a combination of Tier 1 and Tier 2 components, forms Tier 3 of the NESMP. This study tested the Tier 1 components of the programme on 28 estuaries across the South African coast since 2012. However, due to space constraints, the data reflected on in this thesis, is only for case studies on the Berg and Breede estuaries between 2012 and 2016. The results indicate that the establishment and operation of the NESMP on South African estuaries making use of monthly surveys, and the deployment of permanent water quality loggers, in line with the proposed protocol, are possible. This does however require collaboration with other role players in order to share responsibility and associated resources. A tiered management structure ensures national, regional and local level implementation takes place seamlessly. A decision support system (DSS) was also designed as part of this thesis to assist with data interpretation and the creation of management orientated information. This DSS includes a measurement of the percentage exceedance of the Threshold of Potential Concern (TPC), which acts as an early warning system for water resource deterioration. This study showed that effective collaboration will ensure the sustainability of the NESMP. Implementation of the more complex and resource intensive Tier 2 and Tier 3 sampling will however need to be investigated to establish the overall success of the NESMP.
- Full Text:
- Date Issued: 2017
The effect of '6 bricks' guided play on grade two learners' visual perception and reasoning abilities
- Authors: Brey, Amina
- Date: 2017
- Subjects: Constructivism (Education) -- South Africa -- Port Elizabeth Critical pedagogy -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/12112 , vital:27032
- Description: This study investigates the possible effects that construction play (in the forms of guided play and guided play with exploratory talk) using the ‘6 Bricks’ approach has on the development of learners’ visual perception and reasoning abilities. The intervention, which aimed at developing visual perception, required the participating teachers to use the ‘6 Bricks’ approach three times a week over a period of six months. The sub-set of teachers in the intervention group who were also expected to facilitate discussion to promote reasoning abilities were tasked with additional ‘6 Bricks with exploratory talk’ activities once a week spread over ten weeks during the intervention period. The study followed an explanatory sequential mixed-method design with pre-post-testing using comparison and experimental groups to generate both quantitative and qualitative data. The sample included Grade 2 teachers and their learners in five purposively selected schools in Port Elizabeth, South Africa. Quantitative data were generated via pre-post-analysis of two tests, namely, the Visual Perceptual Aspects Test (VPAT) and Raven’s Coloured Progressive Matrices (RCPM) test. Statistically significant improvements were found in the experimental group’s pooled VPAT subtest scores as opposed to only three for the comparison group’s VPAT subtest scores. Statistically significant improvements in mean scores were achieved by some schools in the exploratory talk experimental group for the RCPM test. Qualitative data, obtained from teacher record sheets, researcher’s observations and semi-structured, open-ended teacher interviews were triangulated against the quantitative data. The findings, when considered in light of the literature, suggest that the ‘6 Bricks’ approach can contribute to the development of learners’ visual perception. In the instances when using the ‘6 Bricks’ approach with exploratory talk was implemented successfully, improvements in learners’ reasoning abilities were observed.
- Full Text:
- Date Issued: 2017
- Authors: Brey, Amina
- Date: 2017
- Subjects: Constructivism (Education) -- South Africa -- Port Elizabeth Critical pedagogy -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/12112 , vital:27032
- Description: This study investigates the possible effects that construction play (in the forms of guided play and guided play with exploratory talk) using the ‘6 Bricks’ approach has on the development of learners’ visual perception and reasoning abilities. The intervention, which aimed at developing visual perception, required the participating teachers to use the ‘6 Bricks’ approach three times a week over a period of six months. The sub-set of teachers in the intervention group who were also expected to facilitate discussion to promote reasoning abilities were tasked with additional ‘6 Bricks with exploratory talk’ activities once a week spread over ten weeks during the intervention period. The study followed an explanatory sequential mixed-method design with pre-post-testing using comparison and experimental groups to generate both quantitative and qualitative data. The sample included Grade 2 teachers and their learners in five purposively selected schools in Port Elizabeth, South Africa. Quantitative data were generated via pre-post-analysis of two tests, namely, the Visual Perceptual Aspects Test (VPAT) and Raven’s Coloured Progressive Matrices (RCPM) test. Statistically significant improvements were found in the experimental group’s pooled VPAT subtest scores as opposed to only three for the comparison group’s VPAT subtest scores. Statistically significant improvements in mean scores were achieved by some schools in the exploratory talk experimental group for the RCPM test. Qualitative data, obtained from teacher record sheets, researcher’s observations and semi-structured, open-ended teacher interviews were triangulated against the quantitative data. The findings, when considered in light of the literature, suggest that the ‘6 Bricks’ approach can contribute to the development of learners’ visual perception. In the instances when using the ‘6 Bricks’ approach with exploratory talk was implemented successfully, improvements in learners’ reasoning abilities were observed.
- Full Text:
- Date Issued: 2017
The effect of synthetically-derived xanthone compounds on the suppression of the progression of breast cancer and the associated complications
- Authors: Davison, Candace
- Date: 2017
- Subjects: Breast -- Cancer -- Chemotherapy Breast -- Cancer -- Prevention , Antibacterial agents -- Therapeutic use
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/13889 , vital:27354
- Description: Breast cancer is the most frequently diagnosed cancer in women worldwide.A treatment regime, both effective and safe and can only be achieved once more effective chemotherapeutic agents are discovered or identified. These “drugs” must selectively induce cell death such as apoptosis or necroptosis in the cancer cells. Apoptotic cell death allows a cell to “commit suicide” in genetically- controlled or programmed mechanism(s). The microenvironment of the tumour is important since a nurturing malignant environment is required for tumour maintenance, progression and ultimately the development of metastasis. Due to the correlation of the tumour microenvironment to aggressive tumour progression, emphasis should be placed on the constituents of the tumour’s microenvironment. In recent years, the understanding of intracellular pathways in cancer cells has increased rapidly, contributing to the development of drugs with more specific targets such as growth factors, signalling molecules, cell adhesion proteins, proteases, cell-cycle proteins, modulators of apoptosis and molecules that promote angiogenesis and metastasis. The main aim of this study was thus to identify a few potential or active compounds from a library of synthetically-derived compounds as possible alternative breast cancer treatment candidates.
- Full Text:
- Date Issued: 2017
- Authors: Davison, Candace
- Date: 2017
- Subjects: Breast -- Cancer -- Chemotherapy Breast -- Cancer -- Prevention , Antibacterial agents -- Therapeutic use
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/13889 , vital:27354
- Description: Breast cancer is the most frequently diagnosed cancer in women worldwide.A treatment regime, both effective and safe and can only be achieved once more effective chemotherapeutic agents are discovered or identified. These “drugs” must selectively induce cell death such as apoptosis or necroptosis in the cancer cells. Apoptotic cell death allows a cell to “commit suicide” in genetically- controlled or programmed mechanism(s). The microenvironment of the tumour is important since a nurturing malignant environment is required for tumour maintenance, progression and ultimately the development of metastasis. Due to the correlation of the tumour microenvironment to aggressive tumour progression, emphasis should be placed on the constituents of the tumour’s microenvironment. In recent years, the understanding of intracellular pathways in cancer cells has increased rapidly, contributing to the development of drugs with more specific targets such as growth factors, signalling molecules, cell adhesion proteins, proteases, cell-cycle proteins, modulators of apoptosis and molecules that promote angiogenesis and metastasis. The main aim of this study was thus to identify a few potential or active compounds from a library of synthetically-derived compounds as possible alternative breast cancer treatment candidates.
- Full Text:
- Date Issued: 2017
The effect of the integration of design, procurement, and construction relative to health and safety
- Authors: Deacon, Claire Helen
- Date: 2017
- Subjects: Construction industry -- Management Building -- Safety measures , Industrial safety
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/15038 , vital:28115
- Description: The rates of fatalities, injuries and diseases from work, has been a longstanding challenge for centuries. The challenge is validated by the fact that there is not a paper, or publication, that appears to have been written worldwide, without discussion regarding the extent of the problem in the construction industry. Despite there being prescriptive statutory requirements applicable to the sector, all attempts to reduce the reduce the accident rates in South Africa appear to have been largely unsuccessful. The review of literature indicates that most research has focused on design, designers, roles of stakeholders, inter alia that relate to construction health and safety. Given the situation noted, the research investigated design, various aspects of the construction process and stakeholders, and the inclusion of procurement as a major component of the construction process. A triangulated, or mixed methods research methodology was utilised for the thesis. The qualitative methodology utilised in Action Research (AR) and a total of three FGs’ sought to develop a theoretical model that would identify multi-stakeholder policies, practice and education requirements. An extensive international, African and South African literature review was conducted as part of the secondary research and the grounding for the mixed methodology of research. The information sought to contextualise the South African paradigm and practices. Two quantitative, multi-stakeholders’ studies were conducted during the development of the research. The quantitative aspect considers the perceptions of those practicing or involved in H&S, the interface regarding the stakeholders and ‘issues’ experienced in the challenges relating to daily work. Themes were developed, inter alia: a general; workers; management (including supervision, responsibilities and pricing); a stakeholders’ theme (including project managers; design and designers, and client), and the construction H&S theme (including the CHSA, construction H&S Manager (CHSM), construction H&S Officer (CHSO)). A total of 22 hypotheses were tested. The hypotheses considered all the stakeholders, within the framework of the research. Only 1 hypothesis was not supported, and hypothesis was partially supported. Three AR FGs’ were held in the Sarah Baartman District (a building focus) and at the Bhisho offices (a civil engineering focus) of the ECDRPW. The research considered the procurement processes that underpins a project, with some elements relative to the interface of H&S, design, the stages of work, and the current legislative framework. A validated theoretical model, the ‘Deacon Procurement, Design and Health and Safety Model’ emerged from the qualitative aspect of the research. The salient findings indicate a tendency in the industry to operate in silos, adhere to minimum levels of compliance, and not determining other aspects that could possibly reduce project and financial risk. Therefore, stakeholders need to work together, across the stages of work. Level of confidence is low among clients and built environment groups regarding H&S across the project life cycle, resulting in the non-compliance, and increased project risk. Clients such as the National Treasury do not identify H&S risks during project planning, resulting in the lack of adequate resources for projects, with supply chain management and procurement not ensuring compliance and technical expertise. Due to lack of knowledge CHSAs’, CHSMs’, and CHSOs,’ are not appointed timeously, resulting in noncompliance, and increased project risk. The construction H&S practitioners level of confidence is affected by lack of experience, not knowledge, in contrast to the lack of H&S knowledge of built environment professionals. A range of recommendations are provided that include, inter alia: development of policy, guidelines and practice notes regarding H&S, supply chain management and procurement; education and training, continuing professional development, training and workshops, and further research.
- Full Text:
- Date Issued: 2017
The effect of the integration of design, procurement, and construction relative to health and safety
- Authors: Deacon, Claire Helen
- Date: 2017
- Subjects: Construction industry -- Management Building -- Safety measures , Industrial safety
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/15038 , vital:28115
- Description: The rates of fatalities, injuries and diseases from work, has been a longstanding challenge for centuries. The challenge is validated by the fact that there is not a paper, or publication, that appears to have been written worldwide, without discussion regarding the extent of the problem in the construction industry. Despite there being prescriptive statutory requirements applicable to the sector, all attempts to reduce the reduce the accident rates in South Africa appear to have been largely unsuccessful. The review of literature indicates that most research has focused on design, designers, roles of stakeholders, inter alia that relate to construction health and safety. Given the situation noted, the research investigated design, various aspects of the construction process and stakeholders, and the inclusion of procurement as a major component of the construction process. A triangulated, or mixed methods research methodology was utilised for the thesis. The qualitative methodology utilised in Action Research (AR) and a total of three FGs’ sought to develop a theoretical model that would identify multi-stakeholder policies, practice and education requirements. An extensive international, African and South African literature review was conducted as part of the secondary research and the grounding for the mixed methodology of research. The information sought to contextualise the South African paradigm and practices. Two quantitative, multi-stakeholders’ studies were conducted during the development of the research. The quantitative aspect considers the perceptions of those practicing or involved in H&S, the interface regarding the stakeholders and ‘issues’ experienced in the challenges relating to daily work. Themes were developed, inter alia: a general; workers; management (including supervision, responsibilities and pricing); a stakeholders’ theme (including project managers; design and designers, and client), and the construction H&S theme (including the CHSA, construction H&S Manager (CHSM), construction H&S Officer (CHSO)). A total of 22 hypotheses were tested. The hypotheses considered all the stakeholders, within the framework of the research. Only 1 hypothesis was not supported, and hypothesis was partially supported. Three AR FGs’ were held in the Sarah Baartman District (a building focus) and at the Bhisho offices (a civil engineering focus) of the ECDRPW. The research considered the procurement processes that underpins a project, with some elements relative to the interface of H&S, design, the stages of work, and the current legislative framework. A validated theoretical model, the ‘Deacon Procurement, Design and Health and Safety Model’ emerged from the qualitative aspect of the research. The salient findings indicate a tendency in the industry to operate in silos, adhere to minimum levels of compliance, and not determining other aspects that could possibly reduce project and financial risk. Therefore, stakeholders need to work together, across the stages of work. Level of confidence is low among clients and built environment groups regarding H&S across the project life cycle, resulting in the non-compliance, and increased project risk. Clients such as the National Treasury do not identify H&S risks during project planning, resulting in the lack of adequate resources for projects, with supply chain management and procurement not ensuring compliance and technical expertise. Due to lack of knowledge CHSAs’, CHSMs’, and CHSOs,’ are not appointed timeously, resulting in noncompliance, and increased project risk. The construction H&S practitioners level of confidence is affected by lack of experience, not knowledge, in contrast to the lack of H&S knowledge of built environment professionals. A range of recommendations are provided that include, inter alia: development of policy, guidelines and practice notes regarding H&S, supply chain management and procurement; education and training, continuing professional development, training and workshops, and further research.
- Full Text:
- Date Issued: 2017
The effects of graphene and other nanomaterials on the electrocatalytic behaviour of phthalocyanines
- Authors: Shumba, Munyaradzi
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/37952 , vital:24712
- Description: Carbon based nanomaterials, gold nanorods and metallophthalocyanine nanoconjugates have been developed for electrocatalysis. Carbon based nanomaterials used are multiwalled carbon nanotubes, pristine graphene oxide nanosheets, nitrogen, boron, sulphur, phosphorus doped graphene oxide nanosheets. Cobalt phthalocyanine (CoPc), cobalt tetra aminophenoxy phthalocyanine (CoTAPc), cobalt tetra aminophenoxy phthalocyanine (CoTAPhPc), cobalt mono carboxyphenoxy phthalocyanine (CoMCPhPc) and cobalt tetra carboxyphenoxy phthalocyanine (CoTCPhPc) are the phthalocyanines employed in this work. Metallophthalocyanines were employed either in their bulk form or in their nanosized form. Electrode modification by these nanomaterials was either done sequentially, premixed or linked nanoconjugates. In all sequential modification, phthalocyanines were employed on top of other nanomaterials. Sequentially modified electrodes gave higher detection currents than both premixed and covalently bonded nanoconjugates. The nanomaterials reported here were characterised by transmission electron microscopy, Raman spectroscopy, time of flight secondary ion mass spectrometry, and X-ray diffraction among other techniques. The modified electrodes were further characterised by scanning electron microscopy, scanning electrochemical microscopy, X-ray photoelectron spectroscopy and cyclic voltammetry, while square wave, linear scan and cyclic voltammetry, rotating disc electrode and chronoamperometry have been used to evaluate the electrocatalytic behaviour of the previously mentioned towards either oxidation or reduction of L-cysteine and/or hydrogen peroxide respectively. Generally, the nanoconjugates resulted in superior catalytic performance compared to the performance of individual nanomaterials. Zinc octacarboxy phthalocyanine (ZnOCPc) conjugated to either GONS or rGONS were employed to compare electrocatalytic detection of hydrogen peroxide to its luminescence sensing.
- Full Text:
- Date Issued: 2017
The effects of graphene and other nanomaterials on the electrocatalytic behaviour of phthalocyanines
- Authors: Shumba, Munyaradzi
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/37952 , vital:24712
- Description: Carbon based nanomaterials, gold nanorods and metallophthalocyanine nanoconjugates have been developed for electrocatalysis. Carbon based nanomaterials used are multiwalled carbon nanotubes, pristine graphene oxide nanosheets, nitrogen, boron, sulphur, phosphorus doped graphene oxide nanosheets. Cobalt phthalocyanine (CoPc), cobalt tetra aminophenoxy phthalocyanine (CoTAPc), cobalt tetra aminophenoxy phthalocyanine (CoTAPhPc), cobalt mono carboxyphenoxy phthalocyanine (CoMCPhPc) and cobalt tetra carboxyphenoxy phthalocyanine (CoTCPhPc) are the phthalocyanines employed in this work. Metallophthalocyanines were employed either in their bulk form or in their nanosized form. Electrode modification by these nanomaterials was either done sequentially, premixed or linked nanoconjugates. In all sequential modification, phthalocyanines were employed on top of other nanomaterials. Sequentially modified electrodes gave higher detection currents than both premixed and covalently bonded nanoconjugates. The nanomaterials reported here were characterised by transmission electron microscopy, Raman spectroscopy, time of flight secondary ion mass spectrometry, and X-ray diffraction among other techniques. The modified electrodes were further characterised by scanning electron microscopy, scanning electrochemical microscopy, X-ray photoelectron spectroscopy and cyclic voltammetry, while square wave, linear scan and cyclic voltammetry, rotating disc electrode and chronoamperometry have been used to evaluate the electrocatalytic behaviour of the previously mentioned towards either oxidation or reduction of L-cysteine and/or hydrogen peroxide respectively. Generally, the nanoconjugates resulted in superior catalytic performance compared to the performance of individual nanomaterials. Zinc octacarboxy phthalocyanine (ZnOCPc) conjugated to either GONS or rGONS were employed to compare electrocatalytic detection of hydrogen peroxide to its luminescence sensing.
- Full Text:
- Date Issued: 2017
The effects of Real Exchange Rate (RER) on the export competitiveness of South African fruit industry
- Authors: Peter, Bathathu
- Date: 2017
- Subjects: Foreign exchange rates -- South Africa Free trade -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/15732 , vital:40514
- Description: South Africa has diverse climatic conditions that allow it to grow and produce various fruit cultivars across the country. Limpopo, Western Cape, Mpumalanga, Eastern Cape, KwaZulu-Natal, and Northern Cape are South Africa’s main fruit production regions. In 2015, fruits ranked the 7th largest sector on exports and the largest in South Africa’s agricultural exports. South Africa’s major export partners for fruit in the same year were Netherlands, United Kingdom, Russian Federation, United Arab Emirate, and Hong Kong China. Correspondingly, exports to non-traditional markets such as India and China have increased rapidly. South Africa has prioritized exports as the engine for economic growth and job creation. The country has two major export destinations namely; the high income countries of Europe and North America, and the low-income markets of Africa, especially Southern African Customs Union (SADC) countries. South Africa’s Real Exchange Rates (RER) fluctuated widely since early 1970’s. This occurred after the collapse of the Bretton Woods system of fixed exchange rates in 1973. South Africa’s RER has been depreciating since then. Consequently, there has been a proliferation of debates on the relationship between the RER and exports performance. The most commonly held belief is that the RER depresses trade thereby increasing riskiness of trading activity. The South African fruit industry has been operating in the background of the depreciating RER. A high degree of RER volatility has posed a serious challenge to policy making environment because the magnitude of its impacts on trade flows is still unknown. The policy making environment becomes stagnant. Policy makers and researchers continue to examine the effects of RER on trade for an indefinite period. The South African fruit producers are unable to anticipate income earnings from trade due to increased risks associated with RER. South Africa’s agricultural sector encompasses the Historically Disadvantaged Individuals (HDI) which the country wants to prioritise and give them opportunities to participate in trade. The risks associated with the RER impair the development of the HDIs. The Thesis seeks to examine South Africa’s trade performance and the competitiveness of South African fruit industry as well as the effects of the RER. Specifically, the Thesis examines South Africa’s global fruit trade performance, explores the export competitiveness of South African fruit industry, and estimates the export demand equation for South African fruit exports to the world. The Thesis used the data obtained from the Department of Agriculture, Forestry and Fisheries (DAFF) for the period of 1080 to 2015 to estimate the export demand equation. The data from the International Trade Centre (ITC) for the period of 2001 to 2015 was used to examine South Africa’s global trade performance and competitiveness. The analytical framework followed incorporates the South Africa’s fruit Trade Performance Index (TPI) and the effects of RER on South African fruit industry. The TPI presents South Africa’s global fruit trade and its competitiveness using Trade Map, while the effects of RER are investigated on local fruit sales and on exports using the regression model. The Trade Map is the dominant trade analysis tool increasingly being used by the researchers and policy makers to make informed decisions on trade issues. The Thesis also made use of the Trade Map tools to examine South Africa’s global fruit trade performance and its competitiveness. The market analysis tools developed by the International Trade Centre (ITC) are: Trade Map, Market Access Map, Investment Map, Trade Competitiveness Map, Standard Map, and the Procurement Map. Trade Map, Trade Competitiveness Map, and the Market Access Map are used. Subsequently, the Thesis applied econometric techniques to examine the effects of RER on South Africa’s fruit exports and on fruit sales on local markets using the regression model. In this regard, the Thesis followed the export demand equation used by Todani and Munyama (2005). De Vita & Abbott (2004), and Tandra-Ragoobur & Emamdy (2011). Todani & Munyama (2005), to estimate the relationship between exchange rate volatility and South African export. Real exports and the exchange rate volatility were the main variables used in the model. The relative prices and the income of South Africa’s trading partner were also included in the model. The results show that South Africa was the 11th largest fruit exporter after Viet Nam and Spain in 2015. During the same year, the U.S. was the largest exporter of fruit with 14percent in the world, followed by Spain and Netherlands with 9percent and 6percent, respectively. The fruit industry ranked 8th largest exporter and the largest in agricultural sectors in 2015. Its exports totaled R 37 133 million in 2015, from R 30 566 million in 2014. South Africa’s total fruit exports accounted for a 33percent share on total agricultural exports and 4percent on South Africa’s total exports in 2015. The coefficients of the regression model were all statistically significant. Most importantly, an inverse relationship between the relative price and South Africa’s real fruit exports was established. Moreover, the RER had a significant negative effect on the South Africa’s fruit export competitiveness. This imposes more pain on the development of the HDIs in South Africa’s agricultural sector. South Africa has desire to move away from the export of raw materials and traditional export commodities and promote the export of value added products, including the agro processing products. Accordingly, this affects the entire value chain of the agricultural sector, since trade cannot be anticipated. On the basis of the regression results shown by the variables included in the model, the objectives of the study were accomplished. South Africa’s fruit exports are said to be more competitive to the European markets as a result of the weaker rand relative to other countries. The overview of South Africa’s fruit trade shows that South African fruit exports are more competitive across the globe. This is probably because the South Africa’s fruit exports for the top ten commodities are ranked almost the first five in the European markets and the first ten for the world. The results are supported by previous documented research, which emphasised that the weaker rand leads to more South African fruit produce being absorbed by the international markets. The evidence from the results shows that the RER stimulates the fruit export competitiveness.
- Full Text:
- Date Issued: 2017
- Authors: Peter, Bathathu
- Date: 2017
- Subjects: Foreign exchange rates -- South Africa Free trade -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/15732 , vital:40514
- Description: South Africa has diverse climatic conditions that allow it to grow and produce various fruit cultivars across the country. Limpopo, Western Cape, Mpumalanga, Eastern Cape, KwaZulu-Natal, and Northern Cape are South Africa’s main fruit production regions. In 2015, fruits ranked the 7th largest sector on exports and the largest in South Africa’s agricultural exports. South Africa’s major export partners for fruit in the same year were Netherlands, United Kingdom, Russian Federation, United Arab Emirate, and Hong Kong China. Correspondingly, exports to non-traditional markets such as India and China have increased rapidly. South Africa has prioritized exports as the engine for economic growth and job creation. The country has two major export destinations namely; the high income countries of Europe and North America, and the low-income markets of Africa, especially Southern African Customs Union (SADC) countries. South Africa’s Real Exchange Rates (RER) fluctuated widely since early 1970’s. This occurred after the collapse of the Bretton Woods system of fixed exchange rates in 1973. South Africa’s RER has been depreciating since then. Consequently, there has been a proliferation of debates on the relationship between the RER and exports performance. The most commonly held belief is that the RER depresses trade thereby increasing riskiness of trading activity. The South African fruit industry has been operating in the background of the depreciating RER. A high degree of RER volatility has posed a serious challenge to policy making environment because the magnitude of its impacts on trade flows is still unknown. The policy making environment becomes stagnant. Policy makers and researchers continue to examine the effects of RER on trade for an indefinite period. The South African fruit producers are unable to anticipate income earnings from trade due to increased risks associated with RER. South Africa’s agricultural sector encompasses the Historically Disadvantaged Individuals (HDI) which the country wants to prioritise and give them opportunities to participate in trade. The risks associated with the RER impair the development of the HDIs. The Thesis seeks to examine South Africa’s trade performance and the competitiveness of South African fruit industry as well as the effects of the RER. Specifically, the Thesis examines South Africa’s global fruit trade performance, explores the export competitiveness of South African fruit industry, and estimates the export demand equation for South African fruit exports to the world. The Thesis used the data obtained from the Department of Agriculture, Forestry and Fisheries (DAFF) for the period of 1080 to 2015 to estimate the export demand equation. The data from the International Trade Centre (ITC) for the period of 2001 to 2015 was used to examine South Africa’s global trade performance and competitiveness. The analytical framework followed incorporates the South Africa’s fruit Trade Performance Index (TPI) and the effects of RER on South African fruit industry. The TPI presents South Africa’s global fruit trade and its competitiveness using Trade Map, while the effects of RER are investigated on local fruit sales and on exports using the regression model. The Trade Map is the dominant trade analysis tool increasingly being used by the researchers and policy makers to make informed decisions on trade issues. The Thesis also made use of the Trade Map tools to examine South Africa’s global fruit trade performance and its competitiveness. The market analysis tools developed by the International Trade Centre (ITC) are: Trade Map, Market Access Map, Investment Map, Trade Competitiveness Map, Standard Map, and the Procurement Map. Trade Map, Trade Competitiveness Map, and the Market Access Map are used. Subsequently, the Thesis applied econometric techniques to examine the effects of RER on South Africa’s fruit exports and on fruit sales on local markets using the regression model. In this regard, the Thesis followed the export demand equation used by Todani and Munyama (2005). De Vita & Abbott (2004), and Tandra-Ragoobur & Emamdy (2011). Todani & Munyama (2005), to estimate the relationship between exchange rate volatility and South African export. Real exports and the exchange rate volatility were the main variables used in the model. The relative prices and the income of South Africa’s trading partner were also included in the model. The results show that South Africa was the 11th largest fruit exporter after Viet Nam and Spain in 2015. During the same year, the U.S. was the largest exporter of fruit with 14percent in the world, followed by Spain and Netherlands with 9percent and 6percent, respectively. The fruit industry ranked 8th largest exporter and the largest in agricultural sectors in 2015. Its exports totaled R 37 133 million in 2015, from R 30 566 million in 2014. South Africa’s total fruit exports accounted for a 33percent share on total agricultural exports and 4percent on South Africa’s total exports in 2015. The coefficients of the regression model were all statistically significant. Most importantly, an inverse relationship between the relative price and South Africa’s real fruit exports was established. Moreover, the RER had a significant negative effect on the South Africa’s fruit export competitiveness. This imposes more pain on the development of the HDIs in South Africa’s agricultural sector. South Africa has desire to move away from the export of raw materials and traditional export commodities and promote the export of value added products, including the agro processing products. Accordingly, this affects the entire value chain of the agricultural sector, since trade cannot be anticipated. On the basis of the regression results shown by the variables included in the model, the objectives of the study were accomplished. South Africa’s fruit exports are said to be more competitive to the European markets as a result of the weaker rand relative to other countries. The overview of South Africa’s fruit trade shows that South African fruit exports are more competitive across the globe. This is probably because the South Africa’s fruit exports for the top ten commodities are ranked almost the first five in the European markets and the first ten for the world. The results are supported by previous documented research, which emphasised that the weaker rand leads to more South African fruit produce being absorbed by the international markets. The evidence from the results shows that the RER stimulates the fruit export competitiveness.
- Full Text:
- Date Issued: 2017
The emergence and expression of teachers’ identities in teaching foundation phase mathematics
- Authors: Westaway, Lise
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/7000 , vital:21208
- Description: The assertion that learner performance in South African schools is in crisis may be cliched but it is certainly true. The majority of learners in the schooling system are not achieving the required outcomes, particularly in language and mathematics. I use the underperformance of learners in mathematics as the impetus for my research which seeks to understand how teachers’ identities emerge and are expressed in teaching Foundation Phase mathematics. The research contributes to an emerging scholarship that strives to explain underperformance and quality in mathematics classrooms beyond structuralist theorising. Recently research, particularly in South Africa, has begun to look more closely at who the teacher is and how the teacher is key in understanding what happens in the mathematics classroom. This emerging scholarship focuses on teacher identities. Research that foregrounds teacher identities within the field of mathematics education tends to be situated within a social constructionist orientation, which assumes that our knowledge of self and the world comes from our interactions with people and not some ‘objective’ reality (Berger & Luckman, 1966). Such a perspective appears to conflate questions of how we know something with what is. In other words, it elides structure and agency, thereby making research that seeks to examine the interplay between the two in the formation and expression of teachers’ identities, practically impossible. It is for this reason, as well as the need to move beyond the hermeneutic, that my research draws on Margaret Archer’s (1995, 1996, 2000) social realist framework. Social realism posits a relativist epistemology but a realist ontology. It is underpinned by the notion of a stratified reality with structural mechanisms giving rise to events in the world whether we experience them or not. It is only through the (inter)actions of persons that such mechanisms have the tendential power to constrain or enable the projects of persons. As such, my research seeks to identify the structural and agential mechanisms that give rise to teachers’ identities and how these identities are expressed in teaching Foundation Phase mathematics. In my research, teacher identity refers to the manner in which teachers express their social roles as teachers. In the research I use a case study methodology. I provide rich data on four isiXhosa teachers teaching in low socio-economic status schools. This data is gleaned through interviews and classroom based observations which were recorded as field notes and video transcripts. Analysis of the data occurs through the thought processes of abduction and retroduction (Danermark, Ekstrom, Jakobsen, & Karlsson, 2002). These thought process enable me to (re)describe and (re)contextualise the object of study. Through the process of asking transfactual questions I identify the structural, cultural and agential mechanisms giving rise to teachers’ identities and their expression in teaching foundation phase mathematics. There are three significant findings in my research. Firstly, research that attempts to understand the emergence and expression of teacher identities should consider their broad contextual realities. The historical, economic, social and political contexts in which the teachers are born and live, influences their sense of self, personal identities and social identities (teacher identities) and as such, influences their decision to become teachers and how they express their roles as teachers of Foundation Phase mathematics. Secondly, my research suggests that teachers’ mode of reflexivity is key to understanding the decisions that they make in the classroom and how they deal with the structures that condition the manner in which they express their roles as teachers. Thirdly, collective agency is necessary to bring about change in the way in which teachers express their roles in teaching Foundation Phase mathematics. My research produces new knowledge by examining the interplay of structure, culture and agency in the constitution of foundation phase teachers’ identities and their expression in teaching foundation phase mathematics. I use a social realist orientation to examine this interplay and provide an understanding of the mechanisms giving rise to the phenomenon under consideration. In this way I contribute to the extensive research on learner underperformance by focusing more explicitly on who the teacher is in the classroom.
- Full Text:
- Date Issued: 2017
- Authors: Westaway, Lise
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/7000 , vital:21208
- Description: The assertion that learner performance in South African schools is in crisis may be cliched but it is certainly true. The majority of learners in the schooling system are not achieving the required outcomes, particularly in language and mathematics. I use the underperformance of learners in mathematics as the impetus for my research which seeks to understand how teachers’ identities emerge and are expressed in teaching Foundation Phase mathematics. The research contributes to an emerging scholarship that strives to explain underperformance and quality in mathematics classrooms beyond structuralist theorising. Recently research, particularly in South Africa, has begun to look more closely at who the teacher is and how the teacher is key in understanding what happens in the mathematics classroom. This emerging scholarship focuses on teacher identities. Research that foregrounds teacher identities within the field of mathematics education tends to be situated within a social constructionist orientation, which assumes that our knowledge of self and the world comes from our interactions with people and not some ‘objective’ reality (Berger & Luckman, 1966). Such a perspective appears to conflate questions of how we know something with what is. In other words, it elides structure and agency, thereby making research that seeks to examine the interplay between the two in the formation and expression of teachers’ identities, practically impossible. It is for this reason, as well as the need to move beyond the hermeneutic, that my research draws on Margaret Archer’s (1995, 1996, 2000) social realist framework. Social realism posits a relativist epistemology but a realist ontology. It is underpinned by the notion of a stratified reality with structural mechanisms giving rise to events in the world whether we experience them or not. It is only through the (inter)actions of persons that such mechanisms have the tendential power to constrain or enable the projects of persons. As such, my research seeks to identify the structural and agential mechanisms that give rise to teachers’ identities and how these identities are expressed in teaching Foundation Phase mathematics. In my research, teacher identity refers to the manner in which teachers express their social roles as teachers. In the research I use a case study methodology. I provide rich data on four isiXhosa teachers teaching in low socio-economic status schools. This data is gleaned through interviews and classroom based observations which were recorded as field notes and video transcripts. Analysis of the data occurs through the thought processes of abduction and retroduction (Danermark, Ekstrom, Jakobsen, & Karlsson, 2002). These thought process enable me to (re)describe and (re)contextualise the object of study. Through the process of asking transfactual questions I identify the structural, cultural and agential mechanisms giving rise to teachers’ identities and their expression in teaching foundation phase mathematics. There are three significant findings in my research. Firstly, research that attempts to understand the emergence and expression of teacher identities should consider their broad contextual realities. The historical, economic, social and political contexts in which the teachers are born and live, influences their sense of self, personal identities and social identities (teacher identities) and as such, influences their decision to become teachers and how they express their roles as teachers of Foundation Phase mathematics. Secondly, my research suggests that teachers’ mode of reflexivity is key to understanding the decisions that they make in the classroom and how they deal with the structures that condition the manner in which they express their roles as teachers. Thirdly, collective agency is necessary to bring about change in the way in which teachers express their roles in teaching Foundation Phase mathematics. My research produces new knowledge by examining the interplay of structure, culture and agency in the constitution of foundation phase teachers’ identities and their expression in teaching foundation phase mathematics. I use a social realist orientation to examine this interplay and provide an understanding of the mechanisms giving rise to the phenomenon under consideration. In this way I contribute to the extensive research on learner underperformance by focusing more explicitly on who the teacher is in the classroom.
- Full Text:
- Date Issued: 2017
The epidemiology of African horse sickness in the Eastern Cape, South Africa
- Authors: Riddin, Megan Amy
- Date: 2017
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/64460 , vital:28546
- Description: Expected release date-May 2019
- Full Text:
- Date Issued: 2017
- Authors: Riddin, Megan Amy
- Date: 2017
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/64460 , vital:28546
- Description: Expected release date-May 2019
- Full Text:
- Date Issued: 2017
The Grootfontein aquifer at Mahikeng, South Africa as hydro-social system
- Authors: Cobbing, Jude Edmund
- Date: 2017
- Subjects: Groundwater -- South Africa -- Mahikeng Hydrogeology -- South Africa -- Mahikeng
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/21351 , vital:29484
- Description: The Grootfontein aquifer is located about 20 km south east of Mahikeng, North West Province, South Africa, and currently supplies about 20% of Mahikeng’s water. Formed in weathered Malmani Subgroup dolomites, the aquifer contains good quality groundwater that could potentially supply more of Mahikeng’s water, as well as provide a strategic reserve of water for use during droughts. Over-abstraction of groundwater from the aquifer, mainly by irrigating farmers but also by the boreholes supplying Mahikeng, has caused the natural groundwater level to drop at a rate of about 0.4 m per year since the 1970s, leading to water level declines of as much as 28 m in parts of the aquifer. Although the Grootfontein aquifer is one of the best studied aquifers in South Africa hydrogeologically, efforts to address these declines since the 1970s have largely failed. This research combines hydrogeological evidence with social research (interviews and participant-observation) and the principles of Earth Stewardship Science to argue that the aquifer functions as a hydro-social system, and that institutional characteristics are the root cause of a collective inability to restore the aquifer to its full potential as a water resource. A sub-optimal and undesirable Nash equilibrium prevails, in which major groundwater users are unable or unwilling to reduce abstraction. The situation has significant cost and risk implications for the environmental, economic and social sectors, and contributes to insecurity, pessimism, inequality and mistrust. An effective local forum with appropriate powers, supported and mandated by the Department of Water and Sanitation, is needed to begin the work of dismantling the sub-optimal equilibrium to realise the potential of the Grootfontein aquifer. Such a forum would require a shared understanding of the hydrogeological mechanisms of the aquifer as well as its social and institutional functioning, since these influence each other in complex ways.
- Full Text:
- Date Issued: 2017
- Authors: Cobbing, Jude Edmund
- Date: 2017
- Subjects: Groundwater -- South Africa -- Mahikeng Hydrogeology -- South Africa -- Mahikeng
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/21351 , vital:29484
- Description: The Grootfontein aquifer is located about 20 km south east of Mahikeng, North West Province, South Africa, and currently supplies about 20% of Mahikeng’s water. Formed in weathered Malmani Subgroup dolomites, the aquifer contains good quality groundwater that could potentially supply more of Mahikeng’s water, as well as provide a strategic reserve of water for use during droughts. Over-abstraction of groundwater from the aquifer, mainly by irrigating farmers but also by the boreholes supplying Mahikeng, has caused the natural groundwater level to drop at a rate of about 0.4 m per year since the 1970s, leading to water level declines of as much as 28 m in parts of the aquifer. Although the Grootfontein aquifer is one of the best studied aquifers in South Africa hydrogeologically, efforts to address these declines since the 1970s have largely failed. This research combines hydrogeological evidence with social research (interviews and participant-observation) and the principles of Earth Stewardship Science to argue that the aquifer functions as a hydro-social system, and that institutional characteristics are the root cause of a collective inability to restore the aquifer to its full potential as a water resource. A sub-optimal and undesirable Nash equilibrium prevails, in which major groundwater users are unable or unwilling to reduce abstraction. The situation has significant cost and risk implications for the environmental, economic and social sectors, and contributes to insecurity, pessimism, inequality and mistrust. An effective local forum with appropriate powers, supported and mandated by the Department of Water and Sanitation, is needed to begin the work of dismantling the sub-optimal equilibrium to realise the potential of the Grootfontein aquifer. Such a forum would require a shared understanding of the hydrogeological mechanisms of the aquifer as well as its social and institutional functioning, since these influence each other in complex ways.
- Full Text:
- Date Issued: 2017
The impact of different exchange-rate policies on SADC economies
- Authors: Qabhobho, Thobekile
- Date: 2017
- Subjects: Southern African Development Community -- Economic conditions , Foreign exchange rates International economic relations Developing countries -- Economic policy
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19883 , vital:28996
- Description: An exchange-rate regime is an essential element of a country’s regional and international trade, since it is the monetary link between its domestic and international economy. Appropriate exchange-rate regimes that would facilitate capital flows, trade, Foreign Direct Investment (FDI) and economic growth need to be identified and researched within the Southern Africa Development Community (SADC). This study investigated five underlying themes on exchange-rate regimes, behaviour and monetary policy-related issues in the SADC region: the different exchange-rate regimes’ performance and features – before, during and after the 2007/2008 financial crisis; the implication of the adopted exchange-rate regime on monetary-policy independence through examining the impact of the U.S. interest rate on domestic interest rates; the transmission of the South African exchange-rate volatility to other SADC currencies during and after the 2007/2008 financial crisis; the relationship between the exchange-market pressure and monetary policy, and the relationship between exchange rates and stock prices. The following models were used to address the identified themes: the Exchange-Flexibility Index; the Regression-Based Model; the General Methods of Moments (GMM) Model; the GARCH (p, q) Model; the Exponential GARCH Model; the VAR framework, and the Granger-Causality Tests in the VAR System, with their Impulse Response Functions (IRF) and Variance Decomposition. These models were applied to cover different aspects of the study before, during and after the 2007/ 2008 financial-crisis periods. They enabled critical evaluation of the exchange-rate policies, behaviours and performances. The results of the thesis indicate that, in general, both fixed and flexible exchange rates became more flexible after the crisis period and the influence of the United States (U.S.) Dollar, Chinese RMB and EURO was affirmed. There was no evidence of an increase in the co-ordination of SADC currency arrangements in the post-crisis period. Countries with a fixed exchange-rate regime responded more to international interest rates. The study further confirmed the presence of the Rand volatility-contagion effect during the crisis period, as well as its spill-over effect during tranquil periods, to most currency markets in the region. The evaluation of the relationship between the Exchange-Market Pressure (EMP) and monetary policy relationship revealed their close interdependence. This confirms traditional theories that a tighter monetary policy reduces the EMP. The portfolio theory was further affirmed in that stock prices Granger-cause the exchange rates. The recommendations emanating from this study include modernisation of the financial systems of SADC states to cope with foreign capital flows and external shocks, especially since global and regional economies are intensifying, as well as deepening of financial regulations and supervision of financial systems. Furthermore, there is a need for governments and central banks to synchronise their economic policies to minimise the negative effect of global financial crises. The fixed exchange rate regimes and intermediate regimes proved more suitable to countries with less exposure to global capital markets. However, they should prepare their financial institutions to cope with the transition from peg arrangements to more flexible exchange rate regimes. Countries are more appealing if they have more advanced financial markets, links to global capital markets and flexible exchange rate regimes. SADC countries will eventually engage in full global financial integration because of the intensification of global financial markets. This will require the countries to adopt exchange-rate stability and financial integration, but sacrifice monetary autonomy; alternatively, they could achieve monetary independence with financial integration, but sacrifice exchange-rate stability. The results clarify that currency exchange shocks in one country can cause a persistent rise in the volatility of other countries’ foreign exchange markets. These results show that the Central Banks in SADC countries will need to take policy actions following a large exchange rate shock. Therefore, the results on the exchange-rate volatility theme are useful for policy makers to formulate and implement appropriate policies in the event an adverse shock is observed in SADC exchange markets where contagion/spill over effect is empirically manifested. Even though a rise in short-term interest rates could reduce the EMP, it could also further raise the fluctuations of short-term interest rates. Stabilising the EMP through manipulating short-term interest rates will often heighten volatility of interest rates for an extended period. The assumption that changes in the exchange rate affect the competitiveness of a firm, thus influencing the firm’s earnings, net worth, and stock prices was not supported by the results of this study for the period under analysis. However, the results concur with the portfolio theory that stock prices Granger-cause the exchange rates. This might mean that there is high movement of investors’ money between the South African stock markets and that of other countries. This will have significant influence on the demand for and supply of the South African Rand, which often is in disequilibrium. The policy implication is that the Central Bank should pay more attention to stabilising exchange rates against the major currencies. The results of this study have critical implications for monetary authorities (Central Banks) and decision-makers in business.
- Full Text:
- Date Issued: 2017
- Authors: Qabhobho, Thobekile
- Date: 2017
- Subjects: Southern African Development Community -- Economic conditions , Foreign exchange rates International economic relations Developing countries -- Economic policy
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19883 , vital:28996
- Description: An exchange-rate regime is an essential element of a country’s regional and international trade, since it is the monetary link between its domestic and international economy. Appropriate exchange-rate regimes that would facilitate capital flows, trade, Foreign Direct Investment (FDI) and economic growth need to be identified and researched within the Southern Africa Development Community (SADC). This study investigated five underlying themes on exchange-rate regimes, behaviour and monetary policy-related issues in the SADC region: the different exchange-rate regimes’ performance and features – before, during and after the 2007/2008 financial crisis; the implication of the adopted exchange-rate regime on monetary-policy independence through examining the impact of the U.S. interest rate on domestic interest rates; the transmission of the South African exchange-rate volatility to other SADC currencies during and after the 2007/2008 financial crisis; the relationship between the exchange-market pressure and monetary policy, and the relationship between exchange rates and stock prices. The following models were used to address the identified themes: the Exchange-Flexibility Index; the Regression-Based Model; the General Methods of Moments (GMM) Model; the GARCH (p, q) Model; the Exponential GARCH Model; the VAR framework, and the Granger-Causality Tests in the VAR System, with their Impulse Response Functions (IRF) and Variance Decomposition. These models were applied to cover different aspects of the study before, during and after the 2007/ 2008 financial-crisis periods. They enabled critical evaluation of the exchange-rate policies, behaviours and performances. The results of the thesis indicate that, in general, both fixed and flexible exchange rates became more flexible after the crisis period and the influence of the United States (U.S.) Dollar, Chinese RMB and EURO was affirmed. There was no evidence of an increase in the co-ordination of SADC currency arrangements in the post-crisis period. Countries with a fixed exchange-rate regime responded more to international interest rates. The study further confirmed the presence of the Rand volatility-contagion effect during the crisis period, as well as its spill-over effect during tranquil periods, to most currency markets in the region. The evaluation of the relationship between the Exchange-Market Pressure (EMP) and monetary policy relationship revealed their close interdependence. This confirms traditional theories that a tighter monetary policy reduces the EMP. The portfolio theory was further affirmed in that stock prices Granger-cause the exchange rates. The recommendations emanating from this study include modernisation of the financial systems of SADC states to cope with foreign capital flows and external shocks, especially since global and regional economies are intensifying, as well as deepening of financial regulations and supervision of financial systems. Furthermore, there is a need for governments and central banks to synchronise their economic policies to minimise the negative effect of global financial crises. The fixed exchange rate regimes and intermediate regimes proved more suitable to countries with less exposure to global capital markets. However, they should prepare their financial institutions to cope with the transition from peg arrangements to more flexible exchange rate regimes. Countries are more appealing if they have more advanced financial markets, links to global capital markets and flexible exchange rate regimes. SADC countries will eventually engage in full global financial integration because of the intensification of global financial markets. This will require the countries to adopt exchange-rate stability and financial integration, but sacrifice monetary autonomy; alternatively, they could achieve monetary independence with financial integration, but sacrifice exchange-rate stability. The results clarify that currency exchange shocks in one country can cause a persistent rise in the volatility of other countries’ foreign exchange markets. These results show that the Central Banks in SADC countries will need to take policy actions following a large exchange rate shock. Therefore, the results on the exchange-rate volatility theme are useful for policy makers to formulate and implement appropriate policies in the event an adverse shock is observed in SADC exchange markets where contagion/spill over effect is empirically manifested. Even though a rise in short-term interest rates could reduce the EMP, it could also further raise the fluctuations of short-term interest rates. Stabilising the EMP through manipulating short-term interest rates will often heighten volatility of interest rates for an extended period. The assumption that changes in the exchange rate affect the competitiveness of a firm, thus influencing the firm’s earnings, net worth, and stock prices was not supported by the results of this study for the period under analysis. However, the results concur with the portfolio theory that stock prices Granger-cause the exchange rates. This might mean that there is high movement of investors’ money between the South African stock markets and that of other countries. This will have significant influence on the demand for and supply of the South African Rand, which often is in disequilibrium. The policy implication is that the Central Bank should pay more attention to stabilising exchange rates against the major currencies. The results of this study have critical implications for monetary authorities (Central Banks) and decision-makers in business.
- Full Text:
- Date Issued: 2017
The impact of emotional intelligence on the work and carrer performance of early career academics at the University of Fort Hare
- Authors: Marembo, Mathew
- Date: 2017
- Subjects: Career development Emotional intelligence Personnel management -- Psychological aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/8541 , vital:33091
- Description: Orientation – Early Career Academics (ECAs) in their quest to make significant strides in their academic career are faced with a changing academic context, limited support from employers and circumstances emanating from globalization. All these may arouse emotions, fears, anxieties and uncertainties. Many authorities have exhibited emotional intelligence (EI) to be important in terms of self-management, coping and adaptation. In this regard EI may be influential in the career performance of ECAs. Research Purpose – The main aim of this study was to investigate the effect of EI on the career and work performance of ECAs at the University of Fort Hare. Motivation of the Study – EI is criticized for not being easily measurable and also for not being a sufficient predicting factor to individual performance. Little research exists on EI as a predictor to ECAs career progression. Research Approach, Design and Method – The study utilized quantitative data measurement scales. The Schutte Emotional Intelligence Scale was used to measure EI whilst career performance was measured using the Perceived Career Success Scale. The principles of structural equation modelling were applied in formulating the research hypotheses and in data analysis. Main Findings - Exploratory factor analysis extracted four factors from the SEIS, which were named expression of emotion, perception of emotion, use of emotion and regulation of emotion. Expression, perception and regulation of emotions were found to significantly influence job success, interpersonal success, non-organisational success and hierarchical success. The overall EI was not significant to explain change in ECAs career performance. The researcher also found no significant differences in the EI scores on the basis of ECAs age, gender and work experience. Practical/Managerial Implications - The findings to this study may be useful for career counselling and personal development such that an individual may be able to maximize performance and achievement of career goals. The study recommends that EI may be incorporated in learning programs so that ECAs and other professionals may improve their EI. Future research is encouraged on both ECAs and their senior counterparts in the same context of EI. Contribution or value-add – The study contributes to the debate on the predictive power of EI which is criticised by some authorities in the field.
- Full Text:
- Date Issued: 2017
- Authors: Marembo, Mathew
- Date: 2017
- Subjects: Career development Emotional intelligence Personnel management -- Psychological aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/8541 , vital:33091
- Description: Orientation – Early Career Academics (ECAs) in their quest to make significant strides in their academic career are faced with a changing academic context, limited support from employers and circumstances emanating from globalization. All these may arouse emotions, fears, anxieties and uncertainties. Many authorities have exhibited emotional intelligence (EI) to be important in terms of self-management, coping and adaptation. In this regard EI may be influential in the career performance of ECAs. Research Purpose – The main aim of this study was to investigate the effect of EI on the career and work performance of ECAs at the University of Fort Hare. Motivation of the Study – EI is criticized for not being easily measurable and also for not being a sufficient predicting factor to individual performance. Little research exists on EI as a predictor to ECAs career progression. Research Approach, Design and Method – The study utilized quantitative data measurement scales. The Schutte Emotional Intelligence Scale was used to measure EI whilst career performance was measured using the Perceived Career Success Scale. The principles of structural equation modelling were applied in formulating the research hypotheses and in data analysis. Main Findings - Exploratory factor analysis extracted four factors from the SEIS, which were named expression of emotion, perception of emotion, use of emotion and regulation of emotion. Expression, perception and regulation of emotions were found to significantly influence job success, interpersonal success, non-organisational success and hierarchical success. The overall EI was not significant to explain change in ECAs career performance. The researcher also found no significant differences in the EI scores on the basis of ECAs age, gender and work experience. Practical/Managerial Implications - The findings to this study may be useful for career counselling and personal development such that an individual may be able to maximize performance and achievement of career goals. The study recommends that EI may be incorporated in learning programs so that ECAs and other professionals may improve their EI. Future research is encouraged on both ECAs and their senior counterparts in the same context of EI. Contribution or value-add – The study contributes to the debate on the predictive power of EI which is criticised by some authorities in the field.
- Full Text:
- Date Issued: 2017
The impact of external shocks on economic performance and policy responses in Zimbabwe
- Authors: Manda, Smart
- Date: 2017
- Subjects: Macroeconomics , Economic forecasting -- Zimbabwe Economic development -- Zimbabwe Zimbabwe -- Economic conditions -- 21st century Developing countries -- Economic conditions
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/18354 , vital:28626
- Description: This study analysed the impact of external shocks on macroeconomic performance and policy responses in Zimbabwe for the period spanning from 2009 to 2016. The study was motivated by the rising global economic vulnerabilities following the global economic and financial crisis experienced between 2007 and 2009. The study was also in response to the concern by the Zimbabwean government that external shocks had become increasingly important in influencing macroeconomic developments in Zimbabwe. In view of the intensifying debate on external shocks, the study, therefore, sought to understand the impact of external shocks on economic performance and policy responses in Zimbabwe. The study contributes to empirical literature by assessing the relative contribution of external shocks in explaining business cycles, the main transmission mechanisms of the macroeconomic shocks in Zimbabwe, the extent to which shocks in Zimbabwe were synchronised with shocks affecting other regional countries and how effective were government policies in mitigating the impact of shocks in Zimbabwe. Zimbabwe is a fascinating case study given its unique exchange rate arrangements under the multiple currency system. The application of the micro-founded DSGE models in addition to the Structural Vector Autoregressive (SVAR) models is also a novel approach. The results of the DSGE model demonstrated that foreign output shocks and imported inflation were not important in accounting for developments in endogenous variables in Zimbabwe. In addition, the domestic output and inflation did not respond to a domestic monetary policy shock. However, the international commodity price was found to have some bearing on domestic output. Foreign interest rates had a positive effect on domestic interest rates. On the other hand, domestic variables did not respond to domestic interest rate movements. This effectively implies that whilst foreign interest rates influenced domestic interest rates, domestic interest rates did not influence real economic activity. In other words, the transmission mechanism was not from domestic monetary policy to real economic variables. The results of the SVAR model also confirmed the results obtained from the DSGE model. The results from the analysis of the synchronicity of shocks also provided very important information on the dynamics of external shocks and economic performance in Zimbabwe. These results pointed to the fact that although countries in the region experienced similar shocks, economic fluctuations were not synchronised implying that the shocks could be emanating from the domestic sources rather than external sources. The results from the analysis of the role of external shocks in explaining macroeconomic fluctuations in Zimbabwe revealed that domestic factors contribute more to macroeconomic fluctuations in Zimbabwe compared to external variables. The contribution of climatic factors to domestic output fluctuations was, however, found to have a limited or minimal impact on the economy. Regarding the monetary policy effectiveness, the study observed that there was a weak link between interest rates and output and inflation developments in Zimbabwe. The results also suggested a week link between interest rates and money supply in the economy. The results, however, suggested that international oil prices were very important in the domestic price formations, accounting for about 20 percent of the variation. The monetary policy conditional index on the other hand indicated that monetary conditions in the economy did not influence inflation and output developments, implying ineffectiveness of monetary policy. The results from the study demonstrated the fact that although external shocks do affect economic activity in Zimbabwe, domestic factors are more significant in influencing macroeconomic activity. The policy implication of the findings is that there is need to consider the domestic factors, which are more significant compared to the external factors. However, since monetary policy is not effective under the multiple currencies system, fiscal policy is important to deal with external shocks. This will also enable the economy to absorb the impact of external shocks into the economy. The policies should focus more on reducing the over-reliance on primary commodities for exports through diversification of the economy.
- Full Text:
- Date Issued: 2017
- Authors: Manda, Smart
- Date: 2017
- Subjects: Macroeconomics , Economic forecasting -- Zimbabwe Economic development -- Zimbabwe Zimbabwe -- Economic conditions -- 21st century Developing countries -- Economic conditions
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/18354 , vital:28626
- Description: This study analysed the impact of external shocks on macroeconomic performance and policy responses in Zimbabwe for the period spanning from 2009 to 2016. The study was motivated by the rising global economic vulnerabilities following the global economic and financial crisis experienced between 2007 and 2009. The study was also in response to the concern by the Zimbabwean government that external shocks had become increasingly important in influencing macroeconomic developments in Zimbabwe. In view of the intensifying debate on external shocks, the study, therefore, sought to understand the impact of external shocks on economic performance and policy responses in Zimbabwe. The study contributes to empirical literature by assessing the relative contribution of external shocks in explaining business cycles, the main transmission mechanisms of the macroeconomic shocks in Zimbabwe, the extent to which shocks in Zimbabwe were synchronised with shocks affecting other regional countries and how effective were government policies in mitigating the impact of shocks in Zimbabwe. Zimbabwe is a fascinating case study given its unique exchange rate arrangements under the multiple currency system. The application of the micro-founded DSGE models in addition to the Structural Vector Autoregressive (SVAR) models is also a novel approach. The results of the DSGE model demonstrated that foreign output shocks and imported inflation were not important in accounting for developments in endogenous variables in Zimbabwe. In addition, the domestic output and inflation did not respond to a domestic monetary policy shock. However, the international commodity price was found to have some bearing on domestic output. Foreign interest rates had a positive effect on domestic interest rates. On the other hand, domestic variables did not respond to domestic interest rate movements. This effectively implies that whilst foreign interest rates influenced domestic interest rates, domestic interest rates did not influence real economic activity. In other words, the transmission mechanism was not from domestic monetary policy to real economic variables. The results of the SVAR model also confirmed the results obtained from the DSGE model. The results from the analysis of the synchronicity of shocks also provided very important information on the dynamics of external shocks and economic performance in Zimbabwe. These results pointed to the fact that although countries in the region experienced similar shocks, economic fluctuations were not synchronised implying that the shocks could be emanating from the domestic sources rather than external sources. The results from the analysis of the role of external shocks in explaining macroeconomic fluctuations in Zimbabwe revealed that domestic factors contribute more to macroeconomic fluctuations in Zimbabwe compared to external variables. The contribution of climatic factors to domestic output fluctuations was, however, found to have a limited or minimal impact on the economy. Regarding the monetary policy effectiveness, the study observed that there was a weak link between interest rates and output and inflation developments in Zimbabwe. The results also suggested a week link between interest rates and money supply in the economy. The results, however, suggested that international oil prices were very important in the domestic price formations, accounting for about 20 percent of the variation. The monetary policy conditional index on the other hand indicated that monetary conditions in the economy did not influence inflation and output developments, implying ineffectiveness of monetary policy. The results from the study demonstrated the fact that although external shocks do affect economic activity in Zimbabwe, domestic factors are more significant in influencing macroeconomic activity. The policy implication of the findings is that there is need to consider the domestic factors, which are more significant compared to the external factors. However, since monetary policy is not effective under the multiple currencies system, fiscal policy is important to deal with external shocks. This will also enable the economy to absorb the impact of external shocks into the economy. The policies should focus more on reducing the over-reliance on primary commodities for exports through diversification of the economy.
- Full Text:
- Date Issued: 2017
The impact of family preservation and family reunification services on families in South Africa: a case study of Amathole District Municipality in the Eastern Cape Province
- Authors: Zimba, Zibonele France
- Date: 2017
- Subjects: Family services Dysfunctional families -- South Africa -- Eastern Cape Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Degree
- Identifier: http://hdl.handle.net/10353/3088 , vital:28260
- Description: Families in communities remain vulnerable and, apart from poverty, face a host of other crises and challenges on a daily basis. Amongst the challenges that families face, children are affected most. Services targeting families with very young children therefore are imperative. This study was aimed at exploring the impact of family preservation and family reunification services on families in South Africa, with a focus on the Eastern Cape Province. To answer the research questions of this study, the research adopted a mixed methods design known as methodological triangulation. The study incorporated two sets of participants, Social Workers and heads of families that benefit from family preservation and family reunification services. The total sample for the study included 260 participants; 220 of the participants were heads of families and 40 of the participants were Social Workers. Questionnaires were administered to 200 heads of families and 20 Social Workers selected by means of the random sampling technique. In addition, 20 heads of families and 20 Social Workers who participated in in-depth interviews were purposively selected. The quantitative data were analysed by means of the Statistical Package for the Social Sciences (SPSS) and qualitative data were categorised with the use of themes and subthemes
- Full Text:
- Date Issued: 2017
- Authors: Zimba, Zibonele France
- Date: 2017
- Subjects: Family services Dysfunctional families -- South Africa -- Eastern Cape Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Degree
- Identifier: http://hdl.handle.net/10353/3088 , vital:28260
- Description: Families in communities remain vulnerable and, apart from poverty, face a host of other crises and challenges on a daily basis. Amongst the challenges that families face, children are affected most. Services targeting families with very young children therefore are imperative. This study was aimed at exploring the impact of family preservation and family reunification services on families in South Africa, with a focus on the Eastern Cape Province. To answer the research questions of this study, the research adopted a mixed methods design known as methodological triangulation. The study incorporated two sets of participants, Social Workers and heads of families that benefit from family preservation and family reunification services. The total sample for the study included 260 participants; 220 of the participants were heads of families and 40 of the participants were Social Workers. Questionnaires were administered to 200 heads of families and 20 Social Workers selected by means of the random sampling technique. In addition, 20 heads of families and 20 Social Workers who participated in in-depth interviews were purposively selected. The quantitative data were analysed by means of the Statistical Package for the Social Sciences (SPSS) and qualitative data were categorised with the use of themes and subthemes
- Full Text:
- Date Issued: 2017
The impact of intra- and inter- regional integration on trade flows in Africa
- Authors: Taylor, Nina-Mari
- Date: 2017
- Subjects: International trade Trade blocs Regionalism
- Language: English
- Type: Thesis , Doctoral , DCom
- Identifier: http://hdl.handle.net/10353/12408 , vital:39260
- Description: Regional integration is regarded as a formation which would allow African countries to improve their trade performance and economic growth. By subscribing to such a regional integration grouping, successful regional trade integration could assist African countries in achieving economies of scale, expand respective domestic markets, reduce marginalisation as well as the collective utilisation and exploitation of resources. Such achievements could, gradually, raise the competitiveness of African countries in respect of the global market. By collaborating in regional integration agreements, groups of countries are sought to increase their collective bargaining power and co-operation amongst the member countries. Regional integration can, therefore, be regarded as a necessary means by which economic development, growth and trade can be enhanced amongst African countries. The associated advantages and benefits of regional integration could improve the productive capacity of African counties and strengthen both their individual and continental position in the process of globalisation and integration into the world economy. This study endeavours to examine the impact of intra-regional integration and inter-regional integration on trade flows among and between: SADC, COMESA, ECOWAS and the EAC. The relevant theoretical and empirical literature regarding regional integration is considered as well as the challenges faced by regional economic communities in Africa. The study is based on an Augmented Gravity Model and it employs Panel Data Estimation Techniques and Panel Unit Root Tests. The Hausman test results proved the Fixed Effects Model to be the most applicable to the study. The empirical findings revealed that both intra-regional integration and inter-regional integration had a positive bearing on trade flows and between: SADC, COMESA, ECOWAS and the EAC. Hence, regional integration is concluded as having a prominent role in promoting trade flows in Africa and the study recommends that African countries and regional economic communities should pursue deeper economic integration and continental integration.
- Full Text:
- Date Issued: 2017
- Authors: Taylor, Nina-Mari
- Date: 2017
- Subjects: International trade Trade blocs Regionalism
- Language: English
- Type: Thesis , Doctoral , DCom
- Identifier: http://hdl.handle.net/10353/12408 , vital:39260
- Description: Regional integration is regarded as a formation which would allow African countries to improve their trade performance and economic growth. By subscribing to such a regional integration grouping, successful regional trade integration could assist African countries in achieving economies of scale, expand respective domestic markets, reduce marginalisation as well as the collective utilisation and exploitation of resources. Such achievements could, gradually, raise the competitiveness of African countries in respect of the global market. By collaborating in regional integration agreements, groups of countries are sought to increase their collective bargaining power and co-operation amongst the member countries. Regional integration can, therefore, be regarded as a necessary means by which economic development, growth and trade can be enhanced amongst African countries. The associated advantages and benefits of regional integration could improve the productive capacity of African counties and strengthen both their individual and continental position in the process of globalisation and integration into the world economy. This study endeavours to examine the impact of intra-regional integration and inter-regional integration on trade flows among and between: SADC, COMESA, ECOWAS and the EAC. The relevant theoretical and empirical literature regarding regional integration is considered as well as the challenges faced by regional economic communities in Africa. The study is based on an Augmented Gravity Model and it employs Panel Data Estimation Techniques and Panel Unit Root Tests. The Hausman test results proved the Fixed Effects Model to be the most applicable to the study. The empirical findings revealed that both intra-regional integration and inter-regional integration had a positive bearing on trade flows and between: SADC, COMESA, ECOWAS and the EAC. Hence, regional integration is concluded as having a prominent role in promoting trade flows in Africa and the study recommends that African countries and regional economic communities should pursue deeper economic integration and continental integration.
- Full Text:
- Date Issued: 2017
The impact of trade liberalisation on Cote d’Ivoire
- Authors: Guei, Kore Marc Antoine
- Date: 2017
- Subjects: Trade regulation -- Côte d'Ivoire Free trade -- Côte d'Ivoire , Developing countries -- Economic conditions
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/17514 , vital:28373
- Description: The process of trade liberalisation and market-oriented economic reforms was initiated in many developing countries in early 1980s; and it intensified in 1990s. In 1994, Cote d’Ivoire was assisted by the IMF to implement trade-policy reforms under Structural Adjustment Programme (SAP). After adopting SAP, the country witnessed soaring balance-of-payment problems, contraction of output, unemployment and the loss of government revenue. Several factors, which were at play resulted in dismal economic performance under SAP. In order to consolidate gains in competitiveness, and achieve high and sustainable growth, the Ivorian authorities coordinated efforts to establish and intra-regional custom tariffs among the member of the West African and Monetary Union (WAEMU), the Economic Community of West African States (ECOWAS), World Trade Organisation (WTO), Economic Partnership Agreements (EPAs) and bilateral agreements. It is against this background that this study is undertaken, in order to evaluate the impact of different trade-policy regimes on trade, welfare and revenue in Cote d’Ivoire. This study used one model: World Integrated Trade Solutions/Software for Market Analysis and Restrictions on Trade (WITS/SMART). The WITS/SMART model was used because of its ability in analysing the tariff effect of a single market on disaggregated product lines. The model also has the capability to analyse the effects of trade-policy reforms in the presence of imperfect substitutes. Using the WITS/SMART model, the study considered seven trade-liberalisation frameworks for Cote d’Ivoire: full implementation of the ECOWAS free trade agreement (FTA), ECOWAS common external tariff (CET), WAEMU CET, WAEMU FTA, EPAs, BFTAs and WTO FTA. The WITS/SMART model reveals that all trade liberalisation scenarios may cause welfare gains – due to the plummeting of prices. However, in all trade liberalisation scenarios, welfare gains were found to be is insignificant. In all cases, welfare gains fell far short of compensating for revenue loss. The impact of trade liberalisation on exports and imports was met with mixed reactions. For the WAEMU customs union and the ECOWAS customs union, and WTO FTA, trade reforms are likely to face serious balance-of-payment problems, as imports exceeded exports by significant margins. With respect to revenue loss, of all trading arrangements, the WTO FTA presents a serious challenge for Cote d’Ivoire revenue followed by BFTAs, ECOWAS FTA, EPAs, ECOWAS CET, WAEMU CET, and WAEMU FTA with anticipated revenue losses. Another challenge for Cote d’Ivoire is the presence of trade creation effects, which were observed in all trade reform scenarios. From this study, it appeared that WAEMU CET poses serious threats of trade creation followed by WTO FTA, BFTA, SADC FTA, COMESA CET, SADC CET, EPAs and WAEMU FTA. Specifically, the study highlighted that Cote d’Ivoire, on balance loses out on trade liberalisation, mainly from revenue loss and possible de-industrialisation from trade-creation effects. The study has also revealed that Cote d’Ivoire offers excessive tax exemptions, which worsens the fiscal position of the country in the face of trade liberalisation. Hence, based on the findings, this study recommends that Cote d’Ivoire needs to call for the design of a financial facility aimed at assisting industries affected by trade-creation effects. The country needs to consider improving the collection of revenue from alternative sources, such as VAT, excise duties, personal and company taxes and excise duty, in order to cushion itself against the revenue loss impact of trade reforms. Government could also consider widening the tax base, by taxing the informal sector, which has been growing rapidly in the past years. In addition, policies aimed at exports promotion, such as export subsidies, trade finance and the strengthening of trade-promotion organisations should be considered. The outcome of this study provides a wake-up call to developing countries engaged in the WTO negotiations and other regional trading arrangements.
- Full Text:
- Date Issued: 2017
- Authors: Guei, Kore Marc Antoine
- Date: 2017
- Subjects: Trade regulation -- Côte d'Ivoire Free trade -- Côte d'Ivoire , Developing countries -- Economic conditions
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/17514 , vital:28373
- Description: The process of trade liberalisation and market-oriented economic reforms was initiated in many developing countries in early 1980s; and it intensified in 1990s. In 1994, Cote d’Ivoire was assisted by the IMF to implement trade-policy reforms under Structural Adjustment Programme (SAP). After adopting SAP, the country witnessed soaring balance-of-payment problems, contraction of output, unemployment and the loss of government revenue. Several factors, which were at play resulted in dismal economic performance under SAP. In order to consolidate gains in competitiveness, and achieve high and sustainable growth, the Ivorian authorities coordinated efforts to establish and intra-regional custom tariffs among the member of the West African and Monetary Union (WAEMU), the Economic Community of West African States (ECOWAS), World Trade Organisation (WTO), Economic Partnership Agreements (EPAs) and bilateral agreements. It is against this background that this study is undertaken, in order to evaluate the impact of different trade-policy regimes on trade, welfare and revenue in Cote d’Ivoire. This study used one model: World Integrated Trade Solutions/Software for Market Analysis and Restrictions on Trade (WITS/SMART). The WITS/SMART model was used because of its ability in analysing the tariff effect of a single market on disaggregated product lines. The model also has the capability to analyse the effects of trade-policy reforms in the presence of imperfect substitutes. Using the WITS/SMART model, the study considered seven trade-liberalisation frameworks for Cote d’Ivoire: full implementation of the ECOWAS free trade agreement (FTA), ECOWAS common external tariff (CET), WAEMU CET, WAEMU FTA, EPAs, BFTAs and WTO FTA. The WITS/SMART model reveals that all trade liberalisation scenarios may cause welfare gains – due to the plummeting of prices. However, in all trade liberalisation scenarios, welfare gains were found to be is insignificant. In all cases, welfare gains fell far short of compensating for revenue loss. The impact of trade liberalisation on exports and imports was met with mixed reactions. For the WAEMU customs union and the ECOWAS customs union, and WTO FTA, trade reforms are likely to face serious balance-of-payment problems, as imports exceeded exports by significant margins. With respect to revenue loss, of all trading arrangements, the WTO FTA presents a serious challenge for Cote d’Ivoire revenue followed by BFTAs, ECOWAS FTA, EPAs, ECOWAS CET, WAEMU CET, and WAEMU FTA with anticipated revenue losses. Another challenge for Cote d’Ivoire is the presence of trade creation effects, which were observed in all trade reform scenarios. From this study, it appeared that WAEMU CET poses serious threats of trade creation followed by WTO FTA, BFTA, SADC FTA, COMESA CET, SADC CET, EPAs and WAEMU FTA. Specifically, the study highlighted that Cote d’Ivoire, on balance loses out on trade liberalisation, mainly from revenue loss and possible de-industrialisation from trade-creation effects. The study has also revealed that Cote d’Ivoire offers excessive tax exemptions, which worsens the fiscal position of the country in the face of trade liberalisation. Hence, based on the findings, this study recommends that Cote d’Ivoire needs to call for the design of a financial facility aimed at assisting industries affected by trade-creation effects. The country needs to consider improving the collection of revenue from alternative sources, such as VAT, excise duties, personal and company taxes and excise duty, in order to cushion itself against the revenue loss impact of trade reforms. Government could also consider widening the tax base, by taxing the informal sector, which has been growing rapidly in the past years. In addition, policies aimed at exports promotion, such as export subsidies, trade finance and the strengthening of trade-promotion organisations should be considered. The outcome of this study provides a wake-up call to developing countries engaged in the WTO negotiations and other regional trading arrangements.
- Full Text:
- Date Issued: 2017
The impact of trade liberalisation on Kenya
- Authors: Simiyu, Edwin Jairus
- Date: 2017
- Subjects: Trade regulation -- Kenya Free trade -- Kenya , Foreign trade regulation -- Kenya Developing countries -- Economic conditions
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/20244 , vital:29163
- Description: This study examined the impact of trade liberalisation on Kenya. It analysed the influence of trade liberalisation on trade creation, trade diversion, exports, imports, revenue effects and welfare effects. The developments in trade liberalisation and free-trade economic arrangements were introduced in Kenya and many developing countries in the early 1980s and strengthened from 1990s onward. The short term effects of the structural-adjustment programs were characterised by poor balance of payment conditions, high levels of unemployment, contraction of the imports from other countries, and government revenue losses, among other social problems. Notwithstanding the dismal performance of the Kenyan Economy after liberalisation, the Kenyan government continued to liberalise its trade under various frameworks such as the Economic Partnership agreements (EPAs) with the European Union, the World Trade Organization (WTO) and various bilateral free-trade agreements (BFTA) with its largest trading partners. This study used the World Integrated Trade Solutions-Software for Market Analysis and Restrictions on Trade (WITS/SMART) using 2008 as the base year. This method was used mainly because of its strengths to analyse the tariff effects of a sole market on disaggregate product lines. In addition the WITS/SMART model is able to analyse the impact of trade liberalisation in scenarios of imperfect substitutes. Hence, this study used the WITS/SMART Model to examine the trade liberalisation framework for Kenya under comprehensive implementation of COMESA customs Union, COMESA FTA, WTOFTA and the EPAs. The comparative valuation of the trade-creation effects reveals that the WTOFTA expected the highest trade-creation effects of US$995.16 million. This was followed by the various bilateral free-trade agreements which had a trade-creation effect of US$333.04 million, then COMESACU which had a trade-creation effect of US$310.50 million followed by the EPAs with a value of US$129.45 million. COMESA FTA was expecting trade-creation effects valued at US$15.51 million. These trade-creation effects are expected to cause unemployment through de-industrialisation. This study has also noted that WTO FTA and COMESA CU had no evidence of trade diversion. However, BFTA, EPAs and COMESA FTA showed evidence of trade diversion of US$134.88 million, US$89.28 million and US$2.61 million respectively. This study also examined the possible revenue effect from the free-trade agreements and customs union. It was noted that most losses emanated from the WTOFTA, which was valued at US$817.15 million. This was followed by the COMESACU protocol, which is expected to register a loss amounting to US$327 million. The third free-trade agreement with the highest losses comprised the various BFTAs amounting to US$304 million. The forth probable losses were anticipated from EPAs amounting to US$142 million. The free-trade agreement with the least losses is COMESA FTA with an expected loss of US$7.88 million. The consumer welfare effect was done to assess if consumers benefitted from trade agreements. This study observed that the WTOFTA expected the highest consumer welfare effect of US$103.98 million. This was followed by the various COMESACU with an expected consumer welfare effect of US$56.27 million. The BFTA were the third with a consumer welfare effect of US$ 41.82 million. This was followed by the EPAs with a consumer welfare value of US$ 17.56 million. The trade protocol with the least-expected consumer-welfare effect was the COMESA FTA valued at US$ 1.60 million. Although welfare gains resulting from the anticipated trade agreements were an indication of potential benefits to Kenyans, they were insignificant. This study also analysed the export performance from five different trade agreements and their impact on Kenya. The BFTA expected an export value US$4.63 billion, followed by the EPAs with an expected export value of US$2.18 billion. The third largest export values was WTOFTA with an export value of US$12.12 billion, the fourth being COMESAFTA having an export value of US$ 434.28 million and finally COMESACU with an expected export value of US$394.14 million. The study showed that major exports were composed of minerals, tobacco and agricultural products dominating the export basket. The export destinations were expected to be the WTO members, which include Uganda, Congo, Egypt, Rwanda, Sudan and Zambia. Kenya expected an increase in imports mainly from the WTO amounting to 8.95 per cent. This was followed by the BFTA rated with an expected 3.2 per cent growth in imports. The third protocol expecting import growth was the COMESACU of 2.8 per cent import growth and the EPA with 1.16 per cent import growth, and finally, 0.07 per cent import growth from the COMESA FTA. The expected increase in imports is anticipated to create balance of payment problems for Kenya. The results of the study show that the welfare gains from trade liberalisation were not able to compensate for the revenue losses. The study also showed that Kenya was not able to make optimal use of trade liberalisation to expand its export destinations; as the COMESACU was expected to reduce exports. In light of these findings, the study recommends that measures aimed at boosting exports like strengthening of the Export Processing Zones, export subsidies, the establishing of supply-side facilities, trade financing plus strengthening of the export-supporting institutions. It is important to note that the findings of this study provide an opportunity for Kenya, and other developing countries, to implement measures to ensure that they achieve optimal benefits from the various regional trade agreements.
- Full Text:
- Date Issued: 2017
- Authors: Simiyu, Edwin Jairus
- Date: 2017
- Subjects: Trade regulation -- Kenya Free trade -- Kenya , Foreign trade regulation -- Kenya Developing countries -- Economic conditions
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/20244 , vital:29163
- Description: This study examined the impact of trade liberalisation on Kenya. It analysed the influence of trade liberalisation on trade creation, trade diversion, exports, imports, revenue effects and welfare effects. The developments in trade liberalisation and free-trade economic arrangements were introduced in Kenya and many developing countries in the early 1980s and strengthened from 1990s onward. The short term effects of the structural-adjustment programs were characterised by poor balance of payment conditions, high levels of unemployment, contraction of the imports from other countries, and government revenue losses, among other social problems. Notwithstanding the dismal performance of the Kenyan Economy after liberalisation, the Kenyan government continued to liberalise its trade under various frameworks such as the Economic Partnership agreements (EPAs) with the European Union, the World Trade Organization (WTO) and various bilateral free-trade agreements (BFTA) with its largest trading partners. This study used the World Integrated Trade Solutions-Software for Market Analysis and Restrictions on Trade (WITS/SMART) using 2008 as the base year. This method was used mainly because of its strengths to analyse the tariff effects of a sole market on disaggregate product lines. In addition the WITS/SMART model is able to analyse the impact of trade liberalisation in scenarios of imperfect substitutes. Hence, this study used the WITS/SMART Model to examine the trade liberalisation framework for Kenya under comprehensive implementation of COMESA customs Union, COMESA FTA, WTOFTA and the EPAs. The comparative valuation of the trade-creation effects reveals that the WTOFTA expected the highest trade-creation effects of US$995.16 million. This was followed by the various bilateral free-trade agreements which had a trade-creation effect of US$333.04 million, then COMESACU which had a trade-creation effect of US$310.50 million followed by the EPAs with a value of US$129.45 million. COMESA FTA was expecting trade-creation effects valued at US$15.51 million. These trade-creation effects are expected to cause unemployment through de-industrialisation. This study has also noted that WTO FTA and COMESA CU had no evidence of trade diversion. However, BFTA, EPAs and COMESA FTA showed evidence of trade diversion of US$134.88 million, US$89.28 million and US$2.61 million respectively. This study also examined the possible revenue effect from the free-trade agreements and customs union. It was noted that most losses emanated from the WTOFTA, which was valued at US$817.15 million. This was followed by the COMESACU protocol, which is expected to register a loss amounting to US$327 million. The third free-trade agreement with the highest losses comprised the various BFTAs amounting to US$304 million. The forth probable losses were anticipated from EPAs amounting to US$142 million. The free-trade agreement with the least losses is COMESA FTA with an expected loss of US$7.88 million. The consumer welfare effect was done to assess if consumers benefitted from trade agreements. This study observed that the WTOFTA expected the highest consumer welfare effect of US$103.98 million. This was followed by the various COMESACU with an expected consumer welfare effect of US$56.27 million. The BFTA were the third with a consumer welfare effect of US$ 41.82 million. This was followed by the EPAs with a consumer welfare value of US$ 17.56 million. The trade protocol with the least-expected consumer-welfare effect was the COMESA FTA valued at US$ 1.60 million. Although welfare gains resulting from the anticipated trade agreements were an indication of potential benefits to Kenyans, they were insignificant. This study also analysed the export performance from five different trade agreements and their impact on Kenya. The BFTA expected an export value US$4.63 billion, followed by the EPAs with an expected export value of US$2.18 billion. The third largest export values was WTOFTA with an export value of US$12.12 billion, the fourth being COMESAFTA having an export value of US$ 434.28 million and finally COMESACU with an expected export value of US$394.14 million. The study showed that major exports were composed of minerals, tobacco and agricultural products dominating the export basket. The export destinations were expected to be the WTO members, which include Uganda, Congo, Egypt, Rwanda, Sudan and Zambia. Kenya expected an increase in imports mainly from the WTO amounting to 8.95 per cent. This was followed by the BFTA rated with an expected 3.2 per cent growth in imports. The third protocol expecting import growth was the COMESACU of 2.8 per cent import growth and the EPA with 1.16 per cent import growth, and finally, 0.07 per cent import growth from the COMESA FTA. The expected increase in imports is anticipated to create balance of payment problems for Kenya. The results of the study show that the welfare gains from trade liberalisation were not able to compensate for the revenue losses. The study also showed that Kenya was not able to make optimal use of trade liberalisation to expand its export destinations; as the COMESACU was expected to reduce exports. In light of these findings, the study recommends that measures aimed at boosting exports like strengthening of the Export Processing Zones, export subsidies, the establishing of supply-side facilities, trade financing plus strengthening of the export-supporting institutions. It is important to note that the findings of this study provide an opportunity for Kenya, and other developing countries, to implement measures to ensure that they achieve optimal benefits from the various regional trade agreements.
- Full Text:
- Date Issued: 2017
The implementation of curriculum and assessment policy statement by economics grade twelve teachers and its influence on teaching methods in East London Education District, South Africa
- Authors: Rantsane, Twoboy Babini
- Date: 2017
- Subjects: Curriculum-based assessment -- South Africa -- Eastern Cape Curriculum planning -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/4970 , vital:28879
- Description: The introduction of the Economics CAPS policy ushered the introduction of the new principle of “active and critical learning” which implies fostering active learner participation in teaching and learning process. The revision of curriculum in 1997 and subsequent years has implications on how teachers teach. Since the introduction of Economics CAPS in Grade twelve in 2014, no study has been conducted to determine how teachers implement the curriculum. The aim of the study was to investigate the implementation of Curriculum and Assessment Policy Statement (CAPS) by Economics Grade twelve teachers and its influence on teaching methods in East London Education District. The theoretical framework of the study was Experiential Learning Theory (ELT), constructivism, and pragmatism. A mixed method which entails the combination of quantitative and qualitative research methods was used in this study. A sequential design was followed in the study where the first stage comprised of the administration of questionnaire as a component of quantitative method. The second stage focused on qualitative method which entailed the administration of the following data collection techniques: lesson observation, semi-structured interviews and document analysis. Purposeful random sampling where East London Education District was selected since it has the required categories of schools required for the research was used. All the 53 Grade 12 Economics schools served as the population for the study. Some of the participants did not return the questionnaire while others have phased out Economics. A total of 36 schools participated and two schools have 2 Grade 12 classes. A total of 38 teachers returned the questionnaires. A stratified random sampling of 8 teachers was done for the qualitative research. The schools or teachers were categorised as follows: one teacher from Ex - Model C schools, one from urban, one from rural and five teachers from township schools. The sample represented 22.2 % of schools offering Grade 12 economics in the East London Education District. Descriptive statistics and thematic analysis were used for quantitative and qualitative studies respectively. The study found out that economics teachers assert that they employ mixed methods when teaching, but classroom practice reveals that their teaching approach is predominately teacher - centred. While the CAPS policy propagates the adoption of “active and critical learning” practice indicates this principle is applied to a limited extent. Economics teachers should be developed in using active learning methods to ensure that the new principle find expression in the classroom. In respect of the training of teachers to implement CAPS curriculum, research reveals that short-term training workshops were conducted but Economics teachers have challenges in methodology and content. The recommendations to address the challenges entail: continuous professional development of Economics teachers on methodology; conduct content workshops and resourcing of schools.
- Full Text:
- Date Issued: 2017
- Authors: Rantsane, Twoboy Babini
- Date: 2017
- Subjects: Curriculum-based assessment -- South Africa -- Eastern Cape Curriculum planning -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/4970 , vital:28879
- Description: The introduction of the Economics CAPS policy ushered the introduction of the new principle of “active and critical learning” which implies fostering active learner participation in teaching and learning process. The revision of curriculum in 1997 and subsequent years has implications on how teachers teach. Since the introduction of Economics CAPS in Grade twelve in 2014, no study has been conducted to determine how teachers implement the curriculum. The aim of the study was to investigate the implementation of Curriculum and Assessment Policy Statement (CAPS) by Economics Grade twelve teachers and its influence on teaching methods in East London Education District. The theoretical framework of the study was Experiential Learning Theory (ELT), constructivism, and pragmatism. A mixed method which entails the combination of quantitative and qualitative research methods was used in this study. A sequential design was followed in the study where the first stage comprised of the administration of questionnaire as a component of quantitative method. The second stage focused on qualitative method which entailed the administration of the following data collection techniques: lesson observation, semi-structured interviews and document analysis. Purposeful random sampling where East London Education District was selected since it has the required categories of schools required for the research was used. All the 53 Grade 12 Economics schools served as the population for the study. Some of the participants did not return the questionnaire while others have phased out Economics. A total of 36 schools participated and two schools have 2 Grade 12 classes. A total of 38 teachers returned the questionnaires. A stratified random sampling of 8 teachers was done for the qualitative research. The schools or teachers were categorised as follows: one teacher from Ex - Model C schools, one from urban, one from rural and five teachers from township schools. The sample represented 22.2 % of schools offering Grade 12 economics in the East London Education District. Descriptive statistics and thematic analysis were used for quantitative and qualitative studies respectively. The study found out that economics teachers assert that they employ mixed methods when teaching, but classroom practice reveals that their teaching approach is predominately teacher - centred. While the CAPS policy propagates the adoption of “active and critical learning” practice indicates this principle is applied to a limited extent. Economics teachers should be developed in using active learning methods to ensure that the new principle find expression in the classroom. In respect of the training of teachers to implement CAPS curriculum, research reveals that short-term training workshops were conducted but Economics teachers have challenges in methodology and content. The recommendations to address the challenges entail: continuous professional development of Economics teachers on methodology; conduct content workshops and resourcing of schools.
- Full Text:
- Date Issued: 2017