农民工的工资差距及其变动

Wage Differential of Chinese Migrant and Its Dynamic Change

本文利用中国住户收入分配课题组收集的2002年和2007年农民工的调查数据,考察了这一时期农民工群体工资差距的变化及其原因。在分位数回归和基于无条件分布的分解方法的基础上,本文得到的主要结论有:首先,这一时期农民工的工资差距逐渐缩小,人群内部的分配状况明显改善;其次,在总的工资差距中,特征回报率的变动解释了绝大部分,而个体特征数量变动的影响则相对较小。从特征回报率中分离出残差的影响后,残差对总工资差异的影响呈现出了不同的结果,在工资分布的低端,残差倾向于扩大工资差距,而在工资分布的高端,残差则倾向于缩小工资差距。

Using the Chinese Household Income Project migration dataset 2002 and 2007, the paper studies wage differenti- als among rural-urban migrants and its change. Based on the quantile regression and unconditional distribution decomposition methods, the empirical results indicate that ,first of all, wage differentials among migrants has decreased significantly; secondly, the increase in returns dominates the total differentials;thirdly, residuals show different impact between upper tail and down tail of wage distribution.