Necessary and Sufficient Conditions for Factor Price Equalization
在一般技术假设下，推导出要素价格均等化的充要条件，允许联合生产、规模报酬递减及国家间技术与禀赋差异，调和了经典方法与一体化均衡方法。
Although models with factor price equalization are used frequently in both theoretical and applied research in international economics, only sufficient conditions for factor price equalization have been presented in the literature. In this paper, we present necessary and sufficient conditions for FPE under quite general assumptions about the technologies of different countries. The necessary and sufficient conditions we derive are consistent with joint production, decreasing returns to scale, and substantive differences in the technologies and endowments of different countries. Our results enable us to reconcile the classical approach and the integrated equilibrium approach to factor price equalization.