The objectives of the paper are to examine the Purchasing Power Parity
(PPP) hypothesis for the South African economy during the period 1975
-1994 using high-frequency data. The analysis is conducted both for th
e entire period and also for different subperiods in order to take int
o account possible structural changes. For the rand/dollar exchange ra
te, the authors find on the basis of a unique long-run cointegrating r
elationship that there is significant evidence supporting the PPP hypo
thesis for the entire period. The use of nonlinear least squares and J
ohansen-Juselius procedures is made to reach the above conclusion.