Procompetitive Gains from Trade and Comparative Advantage
在规模报酬递增和不完全竞争的一般均衡模型中，精确界定了促进或抑制竞争的产出变化，推导出贸易收益的充要条件，并推广了比较优势定理和要素含量赫克歇尔-俄林定理。
Having made the concepts of pro- or anticompetitive output changes precise, necessary and sufficient conditions for trade gains are derived under conditions of increasing returns to scale and imperfect competition in a general equilibrium model with any (finite) number of goods and factors. These conditions yield generalizations of the theorems of comparative advantage in goods and implicit factor trade (the factor content version of the H-O theorem). Other generalizations can be obtained if one assumes quasihomothetic preferences and that welfare effects are dominated by price rather than income effects. Copyright 1996 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.