劳动生产率增长源泉与收敛研究

在异质性人力资本的条件下,把劳动生产率增长分解为效率的改变、技术改变、人力资本及物质资本.用核密度函数及回归方法分别对劳动生产率增长及收敛性进行了研究.结果表明:(1)劳动生产率分布由单峰变为多峰,其在初级与高级人力资本下的原因分别为技术改变、物质资本与人力资本;(2)全国的劳动生产率是β收敛的,而西部并不存在β收敛;(3)效率改变及技术改变促进了劳动生产率的发散,而人力资本积累及物质资本积累上促进了劳动生产率的收敛.

Research on the Sources of Labor Productivity Growth and Convergence

Abstract Based on human capital of heterogeneity,labor productivity growth was decomposed into efficiency change, technical change,human capital and physical capital.Kernel density function and regression methods were employed to research the labor productivity growth and the convergence respectively.The results showed that:① A unimodal distribution of labor productivity became multimodal gradually.However,on the environment of junior and senior human capital,it’s causes were advances in technology,physical capital and human capital respectively;②the country's labor productivity wasβ convergence, but in the western region of China,it was notβconvergence;and ③efficiency change and technological change promoted the di-vergence of labor productivity,but human capital accumulation and the accumulation of physical capital promoted the conver-gence of labor productivity.