| Institution: | The authors are, respectively, Professor of Economics at the University of South Africa;Economist at the Office of the Economic Adviser to the Prime Minister;Consulting Engineer. The opinions expressed are the personal views of the authors and should not be associated with any institution to which they are attached. The authors gratefully acknowledge helpful suggestions by the following persons who, of course, are not responsible for any errors: Dr T. A. du Plessis, Dr S. S. Brand and Dr Y. Uliel. |
