新贸易与新经济地理的融合及发展——保罗·克鲁格曼经典理论评介

The Integration and Development of the New Trade Theory and the New Economic Geography Theory——Comments on Krugman's Classic Theory

保罗·克鲁格曼是新贸易理论和新经济地理理论的重要奠基人,他将规模经济纳入到贸易和经济地理模型中,强调规模经济、差异产品和运输成本对于分工、贸易和区位的决定性作用,使得贸易与经济地理研究越来越趋向融合于统一的分析框架,并形成具有重要影响的新贸易理论和新经济地理理论,极大推动了国际贸易理论和经济地理理论的发展.文章结合克鲁格曼的3篇经典文献及后续研究介绍其理论贡献.

Paul Krugman is one of the major founders of New Trade theory and New Economic Geography theory. He has integrated economies of scale into the models of trade and economic geography and emphasized the determinants of economies of scale, different products and transportation costs on division of labors and trade of the location of economic activity, so that the study on trade and new geography has been becoming a united framework for analysis. This way of modeling has come to be the influential New Trade theory and New Geography theory which has moved forward International Trade theory and New Geography. With a reference of three Krugman＇s classical academic paper or books and his later studies, this paper focuses on his contribution to economic theories.