范围不经济与国际贸易的新基础——对国际产品内贸易起因的解释  

Diseconomies of Scope and a New Basis for International Trade——Explanation of the Causes of International Intra-product Trade

作　　者：曾卫锋[1] 

机构地区：[1]厦门大学经济学院,福建厦门361005

出　　处：《中国流通经济》2008年第3期67-70,共4页China Business and Market

摘　　要：本文认为,国际产品内贸易可分为产业间的产品内贸易和产业内的产品内贸易,比较优势理论能解释产业间的产品内贸易,但还没有理论能解释产业内的产品内贸易。文章提出的国际贸易新基础,即由厂商管理约束所导致的范围不经济系数较大而最终产品内的中间产品种类数较多是国际产业内的产品内贸易的基础,比较彻底地解释了产业内的产品内贸易,实现了国际贸易理论的创新。同时文章指出,厂商发挥规模经济效应与实现产品内贸易的决策是被"孪生"地决定的,即理性厂商既不能为了发挥规模经济效应而不合理地减少中间产品种类数,也不能不合理地通过增加中间产品种类数来增加总利润,否则总利润就会减少;交易成本较小是国际产品内分工与贸易的必要条件而非充分条件;第三次科技革命是最终产品国际贸易向中间产品国际贸易发展的直接原因。International intra-product trade comprises inter-industry intra-product trade and intra-industry intra-product trade. The cause of inter-industry intra-product trade can be explained by the theory of comparative advantage, and there is not any theory which can explain the cause of intra-industry intra-product trade. In view of diseconomies of scope and on the basis of New Trade Theory, the author presents a new basis for international trade： coefficient of diseconomies of scope resulting from managerial restriction being big enough while variety of intermediate goods in a final product being greater, which is the basis for intra-industry intra-product trade. The third technological revolution directly promoted the development of international intra-product trade. The author makes the innovation of the theory of international trade by presenting the new basis for international trade and theoretically explaining the cause of international intra-industry intra-product trade.

关 键 词：范围不经济 国际贸易的基础 国际产品内贸易 

分 类 号：F740.3[经济管理—国际贸易]