Using data from the South African manufacturing sector, we estimate a theor
y-consistent model of the evolution of the capital stock. The model is used
to test hypotheses about the nature of the constraints and objective funct
ion of firms in this sector; in particular, we look at the magnitude of the
impact of increased economic uncertainty. (C) 1999 Elsevier Science B.V. A
ll rights reserved. JEL classification: E22; O16.