Autarkic Indeterminacy and Trade Determinacy

Most existing evidences for indeterminacy are obtained from analyzing models that do not consider trade. This paper considers an extension of Nishimura and Shimomura (Journal of Economic Theory, 2002) Heckscher-Ohlin framework by removing sector-specific externalities in one country while maintaining all other assumptions previously made by the authors. We show that even though indeterminacy arises under autarky, it can be eliminated when trade takes place with another country exhibiting saddle-path stability. Consequently, support for indeterminacy from calibrating an autarkic framework should be treated with some degree of caution.