技术进步偏向及其形式的收入分配效应研究

Biased Technological Progress,Types of Technological Progress and Their Effects on Income Distribution

结合CES生产函数构建相对劳动收入份额与技术进步偏向的理论模型,利用全国时间序列、省际面板数据测算技术进步偏向,并估计不同形式的技术进步对相对劳动收入份额的影响。研究发现:我国技术进步整体呈资本偏向,不同形式的技术进步偏向具有差异性;其中,自主创新和技术引进两种形式呈现资本偏向,模仿创新形式呈劳动偏向;不同技术进步形式的收入分配效应具有阶段性差异,自主创新和技术引进有利于资本相对收入份额的提高,模仿创新有利于劳动相对收入份额的提高;自主创新的收入分配效应逐渐显著,技术引进和模仿创新的收入分配效应逐渐弱化。

Based on the CES production,this paper constructs a model of relative labor income share and biased technological progress,and using the national time series data and provincial panel data to estimate the biased technological progress and investigate the impact of different types of technological progress on relative labor income share.Research findings are as follows:China's technological progress generally shows the capital-biased characteristics,but the biasing of technological progress varies between different types of such progress;independent innovation and technology import are capital-biased while the technology imitation re-innovation is labor-biased;the contribution of different types of technological progress to income distribution is significantly different and phased:independent innovation and technology import improves the relative capital income share,the technology introduction re-innovation improves the relative labor income share;the income distribution effect of independent innovation is more significant,while the technology import and imitation re-innovation has gradually weakened.