1. Senior lecturer, University of Stellenbosch Business School, PO Box 610, Bellville 7535, Republic of South Africa. This paper forms part of a PhD thesis which will be submitted to the University of Stellenbosch. The paper has benefitted from useful discussions with Prof Eon Smit and Mr Mike Page. Financial assistance of the Institute for Research Development of the Human Sciences Research Council towards this research is hereby acknowledged. Opinions expressed in this publication and conclusions arrived...