技术进步偏向、要素配置偏向与我国TFP的增长

Biased Technological Progress,Biased Factor Allocation and TFP growth in China

本文在要素增强型CES生产函数的假定下,分析了技术进步偏向、要素投入偏向与我国全要素生产率增长之间的关系。结果表明:在1978—2012年期间,我国全要素生产率平均每年增长约2.10%,技术进步总体上呈现偏向资本的趋势,要素配置总体上也同样呈现出偏向资本的趋势,两者的方向基本一致。技术进步偏向对全要素生产率增长的影响由期初的促进转变为抑制,要素配置偏向对全要素生产率增长的影响在2004年以前为正值,2004年以后变为负值,即抑制了全要素生产率的增长,但是技术进步偏向与要素投入偏向两者对全要素生产率增长的交互效应却由抑制逐渐转变为促进,表明我国技术进步与要素配置逐渐由不匹配转为匹配,我国的技术进步正朝着适宜的方向发展。

This paper analyzes the relations between biased technological progress,biased factor allocation and the TFP growth,using the elements enhanced CES production function. The results show that： in the period 1978—2012,China＇s total factor productivity increased by an average of about 2. 10% per year,biased technological progress presents the trend of capital in general,the factor allocation are also showing a trend in favor of capital,the direction of both are basically the same. Biased technological progress tend to impact TFP growth by the beginning of promoting transition to suppression. The influence on TFP growth by biased factor allocation is positive before 2004 and becomes negative after 2004,means it inhibits the TFP growth. But the combined effect of biased technological progress and biased factor allocation on TFP growth has gradually changed from inhibition to promotion,which indicates that China＇s technological progress and factor allocation turned match from mismatch,China＇s technological progress are moving the appropriate direction.