公共部门与非公共部门工资差异的分位数回归分析

本文基于浙江省城镇就业人员的微观调查数据，在考虑了部门选择的内生性后，利用工具变量分位数回归方法研究了公共部门与非公共部门间的工资差异。研究结果表明，未考虑部门选择的内生性会低估公共部门和非公共部门间的工资差异。同时，我们还发现公共部门的工资显著高于非公共部门，在各个分位数上，超出的比例大致分布在30.1%至10.7%之间。但随着分位数 的提高，两部门间的工资差距呈现递减的趋势。

Wage Differentials between Public and Non-public Sector Based on Quantile Regression

Based on the micro data from urban employed persons survey in Zhejiang province,this paper explores the wage differential between the public and non-public sector using the methods of Instrumental Quantile Regression Model(IVQR).The results assuming exogenous sector choice give a negative public sector wage premium.Correcting for endogenous sector choice,the results of IVQR show that wages in the public sector are 30.1%-10.7% higher than that in the non-public sector and the wage differential declines monotonically with movement down to the right of conditional wage distribution.