摘要：Economic growth requires investment goods that may either be provided domestically or be purchased from abroad. Domestic provision requires saving; the foreign provision requires foreign exchange. If some investment goods for growth can only be provided from abroad, there is always a minimum amount of foreign exchange required to sustain the growth process. The distinctive contribution of the dual-gap analysis to development theory is that if foreign exchange is the dominant constraint it points to the dual role of foreign borrowing in supplementing not only deficient domestic saving but also foreign exchange. The Dual-gap theory thus performs the valuable service of emphasising the role of imports and foreign exchange in the development process. It synthesises traditional and more modern views concerning aid, trade and development. On the one hand, it embraces the traditional view of foreign assistance as merely a boost to domestic saving; on the other hand, it takes a more modern view that many goods necessary for growth cannot be produced by the developing countries themselves and must therefore be imported with the aid of foreign assistance. Indeed, if foreign exchange is the dominant constraint, it can be argued that dual-gap analysis also presents a more relevant theory of trade for developing countries which justifies protection and import substitution. If growth is constrained by a lack of foreign exchange, free trade cannot guarantee simultaneous internal and external equilibrium, and the gains from trade may be offset by the underutilisation of domestic resources.
Loading...
