Literature review on education expansion and income gap in China

Since the reform and opening up, China's per capita years of education and college enrollment rate have been greatly improved. The impact of educational expansion on China's income gap has aroused widespread concern in the academic community. In this paper, the theoretical research and empirical analysis of education expansion and income gap are sorted out, and the related theoretical research at home and abroad are classified into three categories: education expansion has inhibition, promotion and comprehensive effects on income gap. In the empirical analysis, the paper summarizes the functional relationship between education expansion and income gap in China, and the heterogeneity analysis of income of different groups due to the expansion of different education levels.