产业内贸易指标述评

自20世纪90年代以来,产业内贸易(ⅡT)指标从标准G-L指数不断发展为新的分类指标、动态指标和一些扩展指标.这些指标使我们对ⅡT的经验研究不再局限于简单的系数估计,而是可以依据研究目标来检验ⅡT理论的适用性,预测具体的ⅡT模式,以及估计贸易扩张的动态调整效果等.本文尝试将这些ⅡT指标及其适用范围进行综述,以期对人们进行有关研究有所裨益.

Intra-Industry Trade Indexes: A Review

The measurement of intra-industry trade (IIT) has moved on from standard G-L index to classification index, dynamic index and some other extended indexes since 1990s. As a consequence, empirical analysis has progressed from a literature which was essentially about coefficient estimation, to one which is increasingly about testing IIT theories, forecasting IIT models, and dynamic adjustment effects of trade expansion, according to different research purpose. In this paper we try to list all kinds of IIT measurements and their applications in order to help researchers to further their study.