空间集聚与全要素生产率增长——基于门限模型的非线性关联研究

The Nonlinear Relationship Between Spatial Agglomeration and TFP Growth:Evidence from Threshold Methodology

基于中国28个制造行业的面板数据,采用门限模型分析方法,本文对空间集聚与全要素生产率增长之间的非线性关联进行了考察,发现两者之间存在显著的门限效应,集聚水平介于0.0155和0.0492之间最有利于促进全要素生产率的增长。尽管研究表明目前空间集聚主要通过技术效率对全要素生产率产生影响,但推动空间集聚形式由水平型向垂直型转化,将有利于发挥集聚对技术进步的促进作用,并进而促进全要素生产率的提高。

Using the method of threshold model analysis,this paper tests the nonlinear relationship between spatial agglomeration and TFP of 28 branches of manufacturing in China,and the results show that the threshold effects between them are significant. When it is between 0.0155 and 0.0492,the spatial agglomeration will prompt TFP growth with the highest pace. Although it has been found that spatial agglomeration affects productivity growth mainly through the improvement of technical efficiency,the paper holds that the transform from horizontal agglomeration to vertical agglomeration will in favor of technology progress and furthermore promote TFP growth.