异质性生产率、产品质量与中国出口企业的“生产率悖论”

生产率一直以来被认为是企业间所存在的主要异质性,基于生产率构建的新新贸易理论是目前国际贸易理论研究的最新前沿,而利用中国工业企业数据库所进行的实证研究却得出了"生产率悖论"的结论。本文将主要分析造成这种违背经典理论经验研究的主要原因,首先,重新设定企业异质性,即在生产率外再引入产品质量异质性来重构异质性企业贸易模型,可以看出,仅仅利用企业产量而忽视产品质量计算的生产率可能会得出"生产率悖论",从而"生产率悖论"很可能只是一个计算问题;接着利用最新的2005～2009年中国工业企业数据库检验中国出口企业"生产率悖论"的存在性,检验认为大部分行业的确存在"生产率悖论"。

Heterogeneity Productivity,Product Quality and "Productivity Paradox" of Exporting Enterprise in China

Productivity has just always be regarded as the main heterogeneity among enterprises.The new-new trade theory based on productivity is the latest front research in international trade.However empirical researches using China′s industrial enterprise database have found the conclusion "productivity paradox".This paper mainly analyzes the cause of empirical researches that violate the classical theory.First of all,reset enterprise heterogeneity,namely in addition to productivity,it puts product quality into heterogeneity enterprise trade model.The paper discovers that the measuring of productivity just using production and ignoring product quality is probably the cause of productivity paradox,so "productivity paradox" was likely to be only a calculation problem.Then by use of China′s industrial enterprise database from 2005 to 2009,it tests "productivity paradox" in China,and finds that there is a "productivity paradox" in most industries.