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Real exchange rate volatility and its effect on trade flows: New evidence from South Africa

  • Authors: Takaendesa, Peter , Tsheole, Thapelo , Aziakpono, Meshach J
  • Date: 2006
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/469742 , vital:77290 , https://hdl.handle.net/10520/EJC21431
  • Description: This paper empirically re-examines the impact of real exchange rate volatility on South Africa's export flows to the United States for the period 1992:1 - 2004:4, using the two-country model of international trade. The exponential generalised autoregressive conditional heteroscedasticity (EGARCH) model is used to measure real exchange rate volatility. Cointegration and error- correction models are used to obtain the estimates of the cointegrating relations and the short-run dynamics, respectively. Further, variance decomposition analysis is used to show the dynamic adjustments of real exports to shocks in the fundamentals and the proportion thereof. The results obtained in this paper summarily provide evidence that real exchange rate volatility has a negative effect on real exports.
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  • Date Issued: 2006

The life history responses of the abalone pest, Terebrasabella heterouncinata, under natural and aquaculture conditions

  • Authors: Simon, Carol A , Kaiser, Horst , Britz, Peter J
  • Date: 2005
  • Language: English
  • Type: Article
  • Identifier: vital:6773 , http://hdl.handle.net/10962/d1008074
  • Description: The sabellid, Terebrasabella heterouncinata, is a small (<5 mm) intratubular brooder that lives in burrows within the host s shell matrix. It is a semi-continuous breeder and despite producing small numbers of large eggs, infestation by this animal has reached epidemic proportions on local abalone farms. The present study compared the morphometrics and reproductive characteristics of worms from farmed and wild abalone, in the Walker Bay area of the south Western Cape Province of South Africa, to gain insights into why this animal has become so successful under aquaculture conditions. The farms designated farm A and farm B each had one on-farm site, and two wild sites, while farm C had two on-farm sites and two wild sites. The wild sites were natural abalone habitats located within 2.5 km of the farms. Our results conclusively showed that environmental conditions prevalent on the farms enhanced the reproductive success of these worms relative to that observed in its natural environment. At farms B and C, worms occurred in significantly higher densities at the on-farm sites than in the corresponding wild samples, but at farm A, density was equally low at the three sites. At all three farms, a greater proportion of the population was reproductively active in the on-farm samples than in the wild samples. Worms on farmed abalone had a higher instantaneous fecundity, brooded more clutches simultaneously and were larger than their conspecifics from the wild. There was a positive correlation between adult size and brood size and the number of clutches brooded simultaneously. Within the three on-farm sites there was a negative correlation between egg volume and brood size, indicating a trade-off between these traits. However, such a trade-off was not apparent between sites, with brood size being higher at the on-farm sites than at the wild sites, irrespective of egg size. This suggests that the stable nutrient-enriched environment on the farm led to an increase in fecundity without compromising the size (and implicitly the quality) of the eggs. Worm density did not have a significant effect on body size or any other reproductive traits at most sites, and the density of T. heterouncinata was unaffected by the density of other shell-infesting polychaetes. The results suggest that the farm environment has selected for larger, more fecund worms that breed rapidly with high recruitment success as a consequence of abundant nutrients, high host density, habitat stability and a possible lack of predation and interspecific competition.
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  • Date Issued: 2005

New Unity Movement Presidential Address

Determinants of financial intermediation in the SACU countries: Preliminary evidence from a panel data analysis

  • Authors: Aziakpono, Meshach J
  • Date: 2004
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/469687 , vital:77278
  • Description: The study explores empirically five macroeconomic determinants of financial intermediation, namely: growth in income, level of real income, inflation rate, exchange rate and interest rate spread in five SACU countries. Employing four measures of financial intermediation, an equilibrium model of financial intermediation was estimated using a system seemingly unrelated regression panel estimator. The fixed effect and country-specific coefficients were obtained and interpreted. The level of income and exchange rate were the most important determinants of financial intermediation among the countries. In line with theoretical models, which indicate that the level of economic growth can accelerate the process of financial intermediation, in three of the countries - Botswana, Namibia and South Africa, a very significant positive relationship between level of income and the indexes of financial intermediation was observed. But for Lesotho and Swaziland, a reverse relationship was obtained. This may be due to negative externalities from the more developed financial sectors of South Africa resulting from the economic and monetary integration. The results on the exchange rate highlight the need for a stable and predictable exchange rate policy in order to stimulate financial intermediation. Also, the results confirm the potential for inflation to negatively affect financial intermediation. Lastly, the results relating to interest rate spread highlight how high levels of the spread can prevent deep financial intermediation.
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  • Date Issued: 2004

Umabatha: global and local

  • Authors: Wright, Laurence
  • Date: 2004
  • Language: English
  • Type: text , article
  • Identifier: vital:7032 , http://hdl.handle.net/10962/d1007364 , https://doi.org/10.1080/00138390408691324
  • Description: preprint , There can be few shows that test the dimensions and pitfalls of 'globalised' theatre as thoroughly as Welcome Msomi's Umabatha. The worldwide success of the show, in box-office terms, can hardly be argued with. And yet, in its very conception, the vehicle is so riven by intrinsic cultural, theatrical, class and 'nationist' tensions that different audiences cannot but reap utterly different experiences, depending on their own cultural and intellectual inheritance.The show is an instance where theatre practice (sometimes) obfuscates political and aesthetic discourse, showing how easily cultures miss each other and fail to connect, and how easily specific historical, geographical and imperial associations are swamped by shallow 'globalised' audience response.
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  • Date Issued: 2004

Between the Reds and the Greens: a geographical interpretation of the land question in South Africa

  • Authors: Fox, Roddy C
  • Date: 2003
  • Language: English
  • Type: Text
  • Identifier: vital:575 , http://hdl.handle.net/10962/d1006657
  • Description: This inaugural lecture is in two parts: each related to a different nexus of the four types of scholarly activity. The first reflects on my career and is an examination of how I have developed as a teacher and learner. The key scholarly activities being discovery, integration and teaching. The second part reflects on the evolution of my research interests and leads up to an examination of the land question in South Africa. The scholarly activities in this part of the lecture are discovery, integration and application.
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  • Date Issued: 2003

The proof of the pudding: the presentation and proof of expert evidence in South Africa

  • Authors: Meintjes–van Der Walt, Lirieka
  • Date: 2003
  • Language: English
  • Type: Article
  • Identifier: vital:6338 , http://hdl.handle.net/10962/d1012403 , http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=170233
  • Description: Imagine, as one may well imagine at this time of the day, a chocolate mousse, dark and delectable, or a tempting tiramasu or a perfect pavlova. How are you going to decide which is best? Yes, indeed the actual presentation of the puddings may influence your choice, but to be able to make an informed choice, you would need to taste them. Do you have to make the choice according to your own taste, or do you have to decide which should go best with your menu for your dinner party? If you have to decide which is best, you would have to be able to rank them in relation to other mousses, tiramasus or pavlovas. You need to know the ingredients, and for a professional decision you would need some knowledge of the art of cooking. Proof in the art of cooking, science, and also in law depends on the quantum and quality of evidence or data sufficient to support a conclusion. Loevinger concludes that “[p]roof ultimately depends on the ability of the human mind to make appropriate and useful distinctions and connections among data or items of evidence”.
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  • Date Issued: 2003

Foucauldian feminism: the implications of governmentality

  • Authors: Macleod, Catriona I , Durrheim, Kevin
  • Date: 2002
  • Language: English
  • Type: Article
  • Identifier: vital:6261 , http://hdl.handle.net/10962/d1007879
  • Description: Foucauldian discourse has been received with varying degrees of enthusiasm within feminist circles. Some authors (e.g. Balbus, 1988; Di Leonardo, 1991; Hartsock, 1990) see a Foucauldian stance as incompatible with feminist theory, while others (e.g. Grimshaw, 1993; Hoy, 1988; McNay, 1992; Sawicki, 1988) advocate a positive relationship between Foucauldian discourse and feminism. And then there are those theorists (e.g. Burman, 1990) who stand between these two positions, stating that while Foucault offers useful insights and methods to feminists, it can also be dangerous.
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  • Date Issued: 2002

The land question in South Africa, Zimbabwe and Kenya: a geographical perspective on resource endowment

  • Authors: Fox, Roddy C , Rowntree, Kate M
  • Date: 2002
  • Language: English
  • Type: Conference paper
  • Identifier: vital:6664 , http://hdl.handle.net/10962/d1006671
  • Description: In sharp contrast to the debates concerning land policy, land tenure and sustainable resource management in South Africa is any input concerning the geographical distribution of land productivity. This paper attempts to redress this imbalance by providing an empirical investigation of land potential in South Africa. In this way we intend to provide the crucial context for policy and academic studies of the land issue in South Africa. Furthermore, we will undertake our study in such a way that comparison can be made to Zimbabwe and Kenya where the land issue has been such a critical component of the post-colonial development process. Theoretically our work is contextualised within the debates surrounding the importance of geographical endowments, institutions and policies in the development process.
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  • Date Issued: 2002

Labour law amendment bills

  • Authors: NEDLAC
  • Date: 2000
  • Subjects: NEDLAC
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/151676 , vital:39159
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  • Date Issued: 2000

Black South African English : where to from here?

  • Authors: De Klerk, Vivian A
  • Date: 1999
  • Language: English
  • Type: Article
  • Identifier: vital:6135 , http://hdl.handle.net/10962/d1011587
  • Description: Black South African English is generally regarded as the variety of English commonly used by mother-tongue speakers of South Africa's indigenous African languages in areas where English is not the language of the majority. This paper explores some of the problems involved in defining this variety, problems such as whether it is a `new' variety of English or a dialect, and problems relating to whose English it is: the English of those learners who have encountered only a smattering of English in informal contexts or the variety of English acquired during formal schooling. The second half of the paper focuses on the possible future of Black South African English (BSAE) against the backdrop of South Africa's new multilingual policy. Reasons for the continued appeal of English are examined, alongside the range of factors influencing the possible future growth of BSAE as a distinct variety. It is argued that South Africans are unlikely ever to be free not to learn English, owing to the huge economic, political and ideological constraints which make the `choice' of English inevitable. The success of current efforts to resist value judgements and recognise the worth of BSAE will depend not only on the goodwill of South Africans, and on the cooperation of all speakers of English, world-wide, but on the rate at which the variety drifts away from recognised standard forms of English.
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  • Date Issued: 1999

National Bargaining Conference

  • Authors: SAMWU
  • Date: Dec 1998
  • Subjects: SAMWU
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/112895 , vital:33674
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  • Date Issued: Dec 1998

Port Elizabeth History: A Select Annotated Bibliography

  • Authors: Baines, Gary F
  • Date: 1998
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/125742 , vital:35813 , https://doi.10.1080/02582479808671323
  • Description: When I commenced my work on aspects of Port Elizabeth’s history in the late 1980s, there was no body of scholarly literature on which to draw. Since thena number of significant publications, both periodical articles and books, as well as theses have appeared, and something of a corpus of works on the city now exists. It seems appropriate to take stock of the current state of Port Elizabeth’s historiography by compiling a bibliography.
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  • Date Issued: 1998

Symplastic solute transport and avocado fruit development : a decline in cytokinin/ABA ratio is related to appearance of the Hass small fruit variant

  • Authors: Moore-Gordon, Clive S , Cowan, Keith A , Bertling, Isa , Botha, Christiaan E J , Cross, Robin H M
  • Date: 1998
  • Language: English
  • Type: Article
  • Identifier: vital:6525 , http://hdl.handle.net/10962/d1005959
  • Description: Studies on the effect of fruit size on endogenous ABA and isopentenyladenine (iP) in developing avocado (Persea americana Mill. cv. Hass) fruit revealed that ABA content was negatively correlated with fruit size whilst the iP/ABA ratio showed a linear relationship with increasing size of fruit harvested 226 d after full bloom. The effect of this change in hormone balance on the relationship between symplastic solute transport and appearance of the small fruit variant was examined following manipulation of the endogenous cytokinin (CK)/ABA ratio. Application of ABA caused seed coat senescence and retarded fruit growth but these effects were absent in fruit treated with equal amounts of ABA plus iP. Thus, the underlying physiological mechanisms associated with ABA-induced retardation of Hass avocado fruit growth appeared to be inextricably linked to a decline in CK content and included: diminution of mesocarp and seed coat plasmodesmatal branching, gating of mesocarp and seed coat plasmodesmata by deposition of electron dense material in the neck region, abolishment of the electrochemical gradient between mesocarp and seed coat parenchyma, and arrest of cell-to-cell chemical communication.
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  • Date Issued: 1998

National Bi-annual Conference - Treasurer's address

  • Authors: FAWU
  • Date: July 1997
  • Subjects: FAWU
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/119042 , vital:34696
  • Description: Comrade President, Honorary President, General Secretary and delegates, I present this report on behalf of the National Executive Committee (NEC). Since the last Conference the Union has faced many challenges and difficulties, but has despite this managed to play its rightfull role as a social partner by entering into the national debate of socio-economic transformation. This Conference has to further this advances by debating the crucial issues that underpin our advance to the total socio-economic transformation of our country. We also need to revisit and re-assess the pillars on which our Union rest, and strenghten them through policy formulation - and here I specifically want to isolate the areas of finance and administration. Later in this report I will attempt to highlight some of the crucial areas. Comrade President, allow me to express the NEC's appreciation to the staff for their dedication, loyalty and commitment, to FAWU over the past two years. We want to give them the assurance that their loyalty does not go by unnoticed, and that we will attempt to reward them for this excellent service. May I furthermore use this opportunity to thank the comrades in the National Executive Committee (NEC) and the National Office Bearers for their support and commitment over the past few months. It is through this commitment and dedication that we are able to present this Conference with a report. Comrades, the Annual Audited Financial Statements for the financial year will be tabled tommorrow. To the best of my knowledge this statements represents the financial position of the Union for the year ended 31 March 1997.
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  • Date Issued: July 1997

On the life history of the lesser gurnard (Scorpaeniformes: Triglidae) inhabiting the Agulhas Bank, South Africa

  • Authors: Booth, Anthony J
  • Date: 1997
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/125434 , vital:35782 , https://doi.10.1111/j.1095-8649.1997.tb01133.x
  • Description: Fishes of the genus Labeo are widely distributed throughout Africa and consist of at least 80 species which comprise 16.4% of the African cyprinid ichthyofauna (Reid 1985). Most labeo species are also commercially important throughout the African continent, having contributed significantly to various fisheries. Their roe (sensu caviar) is often harvested as an additional bycatch (Skelton et al. 1991). Despite their obvious importance, the few studies that have investigated aspects of their life history have been conducted on the larger commercial species (Lowe 1952, Mulder 1973, Balon et al. 1974, Potgieter 1974, Baird 1976, Tomasson et al. 1984, van Zyl et al. 1995).
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  • Date Issued: 1997

A life-history approach to the early ontogeny of the Mozambique tilapia Oreochromis mossambicus (Pisces, Cichlidae)

  • Authors: Holden, Kathleen K , Bruton, Michael N
  • Date: 1992
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/447116 , vital:74585 , https://www.ajol.info/index.php/az/article/view/154193
  • Description: The early ontogeny of Oreochromis mossambicus (Peters) was followed from the time of egg activation until the juvenile period. Development is direct and consists of an embryonic period of approximately 15 days. The embryonic period can be divided into a cleavage, an embryonic and a free-embryonic phase. A detailed developmental description is given and the relationship between the early ontogeny and the early life-history pattern is examined. The terminology used for the last step of the free-embryonic phase and a possible truncated larval period is discussed.
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  • Date Issued: 1992

Power play and the changing face of English : inaugural lecture delivered at Rhodes University

APDUSA Views

Cancer: science and society

  • Authors: Duncan, John R
  • Date: 1991-08-14
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/54280 , vital:26450 , ISBN 0-86810-227-X
  • Description: [From introduction] The first question which needs to be answered is “What is Cancer?” This is in fact a very difficult question as, in many respects, cancer is a group of diverse diseases since it can affect every tissue in the body with different manifestations depending on the type of cancer. Can we therefore define this disease? I have synthesised a definition which I think covers the salient points. “Cancer is the uncontrolled or asynchronous growth of abnormal cells arising from a change in the cells DNA”. Let me explain this. Normal cells grow in a very controlled and synchronous manner. In going from a child to an adult hormones and other factors control the rate of growth of bones, muscles, etc.. They do this in a very controlled way by influencing the genetic material in the cell, viz. DNA. In adults there is also constant cell growth in, for example, skin and blood cells where new cells are replacing dead or old cells, again in a very controlled fashion. Many factors, which I will be discussing shortly, can disrupt this controlled cell growth and can further cause cells which normally are static or grow very slowly to enter into a state of high rates of cell growth. These cells which arc now growing in an uncontrolled fashion have been changed by these factors so that they no longer resemble the normal cells in the tissue in which they are found. They can therefore be regarded as abnormal cells.
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  • Date Issued: 1991-08-14
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