中国居民代际收入持续性的群体差异比较

Group Difference Comparison of Chinese Residents’ Intergenerational Income Continuity

文章基于2014—2016年中国家庭追踪调查(CFPS)数据和中国各省份教育经费支出数据,采用两阶段最小二乘法和工具变量分位数回归法,以政府教育支出为中间变量,对不同性别、不同户籍、不同收入群体的代际收入弹性(IGE)进行测算,比较中国居民代际收入持续性的群体差异。为使研究结果更加可信,进一步将政府教育支出分为高、中、低三个样本组,探讨政府不同教育支出水平对不同群体代际收入持续性的影响机制,并对回归模型进行了相关检验。

Based on the data in China Family Panel Studies(CFPS)from 2014 to 2016 and the data of education expenditure of various provinces in China,this paper uses two-stage least square method and instrumental variable quantile regression method,and takes government education expenditure as the intermediate variable to calculate the intergenerational income elasticity(IGE)of different genders,household registration and income groups,and compares the group differences of Chinese residents’intergenerational income continuity.In order to make the research results more credible,the paper further divides the government education expenditure into high,medium and low sample groups to discuss the influence mechanism of different government education expenditure levels on the intergenerational income continuity of different groups,and also conducts the correlation test on the regression model.