我国劳动力市场上工资收入差距的决定因素——基于夏普里值过程的回归方程分解

The Determinants of Wage Gap in China's Labor Market:Regression-based Decomposition Based on Shapley Value

文章运用中国综合社会调查2006年数据,基于夏普里值过程的回归分解方法,对我国劳动力市场上工资收入差距的决定因素进行了系统的实证研究。研究发现,教育人力资本是导致工资收入差距的最重要因素,其对不平等程度的贡献达到了37.47%;地区、性别和行业因素仅次于教育,成为导致工资收入分配不平等的重要因素;职业类型、单位所有制和社会关系是控制工资收入差距不容忽视的因素;而单位规模、户籍和工作经验对不平等程度的贡献则几乎可以忽略不计。另外,工资收入差距的决定因素在东部和中西部地区存在巨大差异。

Using China General Social Survey in 2006, this paper employs regression-based decomposition based on Shapley value to empirically analyze the determinants of wage gap in China＇s labor market. The results are as follows： firstly, education is the most important cause of wage gap, and makes a contribution of 37. 47% to wage gap; secondly, some factors such as region, sex and industry are the second important causes of wage gap; thirdly, occupation, corporate ownership and social relations play a tremendous role in shortening the wage gap; fourthly, corporate scale, household registration and work experience make an almost negligible contribution to wage gap. In addition, the determinants of wage gap in eastern region are obviously different from the ones in central and western regions.