全球生产网络背景下中间品进口与最终品出口的二元边际——基于微观视角的解释

The Intermediate Imports in Global Production Chain and the Dual Margins of Final Goods Exports: Based on the explanation of micro perspective

文章基于企业异质性贸易理论框架,将企业的中间品进口行为内生化,全面地考虑了企业进口地位对于企业全要素生产率的影响,更重要的是以全要素生产率为基点,将中间品进口的促进机制延伸至最终品出口结构。继而构建计量模型,经过检验进一步发现,从出口增长方式上讲,零部件的进口尤其是扩展边际的增加有利于最终资本品出口扩展边际的提高,而且这种促进作用主要是通过对于企业全要素生产率的提升来实现的。

This paper constructs a theoretical model to study the internal driving power of intermediate input imports-induced export on the basis of Melitz Model( 2003),which made intermediate input imports endogenous and emphasized its positive effect to firm's total factor productivity. This model can reveal the fact that a developing country will promote its way of export increasing through imports. Empirical research shows that the growing import of components,especially the kinds and sources,will promote the growth of extensive margin of Chinese manufacturing,and this effect is achieved through improving firms' total factor productivity especially for the open industries.