Institution: | Senior Lecturer, Department of Economics, University of Pretoria, and Group Environmental Consultant for Anglo American Platinum Corporation. the Views Expressed Reflect Those of the Authors and not Necessarily Those of Any Institution They May Be Involved With. the Authors are Also Indebted to Professors D.j.j. Botha and P.a. Black for Invaluable Comments and Editorial Assistance. We Accept Full Responsibility for the Contents of the Article. |