The Foreign Exchange Constraints to Economic Adjustment: The case of Iran

While a great deal of work has been devoted to the assessment of the effects of structural adjustment programmes, little is known about the relative importance of external financing and its contribution to the success of these adjustment programmes. This paper examines this question, using Iran's recent experience with an orthodox structural adjustment with its limited access to medium- and long-term external financing. Using the annual data for 1963-94, a three-gap model of growth is formulated and estimated in which economic growth is constrained by domestic saving, foreign exchange and public sector resource availability. The resulting foreign exchange-gap equation demonstrates a sharp trade-off between investment (capacity generation) and the capacity utilization rate. The model is simulated over the period 1995-99 under three growth path scenarios. The size of the foreign exchange gap under these growth path scenarios illustrates quite vividly the centrality of the foreign exchange constraint to the achievement of a modest growth rate in the medium-term.