本文利用微观调查数据,采用分位数回归法,研究教育收益率在不同收入群体之间的差异性,在城市化发展程度不同的地区间的空间差异性,为制定更适宜的政策提供决策依据。结果表明:低收入群体的教育收益率高出高收入群体4.3%。随着学历的提高,教育收益率越来越高,受过高等教育者的教育收益率远高于未受高等教育的群组。对于中等及以上收入群体,城市的教育收益率显著高于农村;对于低收入群体,城市和农村的教育收益率没有显著差别。城镇化率对于中等及中等偏上收入群体的教育收益率具有显著的正向促进作用。
Under the realistic background of serious income gap and rapid development of urbanization, this study focuses on the differences of returns to education in different income groups and on spatial differences of areas with different levels of urbanization, trying to offer more appropriate policy suggestions based on the comprehensive understanding of the differences of returns to education. Using micro survey data and quantile regression, this paper has studied the income and spatial differences of returns to education. The results show that: the returns to education in the low income group is 4.3% higher than that of the high income group. The returns to education is higher following the improvement of academic degree, and the returns to education in the groups who have received higher education is far higher than that of those who haven' t. For the medium and above income groups, the returns to education in urban is significantly higher than that in rural. But for the low income group there isno significant difference between urban and rural areas. The rate of urbanization has a significant positive effect on the returns to education of the middle and upper income groups.