教育扩张对大学毕业生收入的影响——基于断点回归设计分析

The Effect of Higher Education Expansion on salaries of college graduates:Based on empirical evidence of regression discontinuity design

本文使用2012年"中国劳动力动态调查"数据(2),基于断点回归方法评估高等教育扩招政策对收入的影响。本文的实证研究主要发现扩招政策对不同收入群体的影响不同,对低收入群体并无显著影响,但显著提高了高收入群体的收入,说明扩招促使高收入群体的高等教育收益高于低收入群体,这表明在一定程度上高等教育扩招政策并不利于社会公平,可能会造成居民收入差距进一步扩大。

Using data from China Labor-force Dynamics Survey （CLDS） , this paper explores whether the Higher Education Expansion in China has an effect on college graduates＇ salaries. According to the methods of regression discontinuity, we found that the Education Expansion significantly enhances the salaries of high-income college graduates rather than low-income group.This shows that to some extent, the expansion of higher education policy is not conducive to social justice, may lead to further expansion of the income gap.