具有替代效应和补充效应的公共教育财政支出对代际收入流动影响的模型比较研究

Comparative Study of the Influence of Public Education Financial Expenditure with Substitution and Supplementary Effects on Intergenerational Income Mobility

在Becker等以及Solon研究的基础上建立了具有替代效应和补充效应公共教育财政支出对多代代际收入流动影响的理论模型,模型结果显示具有替代效应的公共教育财政支出存在一定的投资拉动效应,带来子代人力资本投资总量的增加;而具有补充效应的公共教育财政支出与子代人力资本投资总量呈等量增长.模型结果还显示两类公共教育财政支出的增加都可以提高子代人力资本积累,降低父代收入对子代收入的影响进而促进代际收入流动。实证分析结果验证了上述理论结果,同时还显示我国具有替代效应的公共教育财政支出对提高代际收入流动的作用更显著.

Based on the researches of Becker et al.(2015)and Solon(2004),this paper establishes a theoretical model of the impact of public education fiscal expenditure with substitution effect and complementary effect on multi-generational income fow.The model results show that public education fiscal expenditure with substitution effect has certain investmentpulling effect,and it increases the total human capital investment of the children.While the supplementary public education expenditure increases equally with the total human capital investment of the children.The results of the model also show that the increase of the two types of public education financial expenditure can improve the accumulation of human capital of the children,reduce the influence of the parents'income on the children's income and promote the intergenerational income mobility.The empirical analysis results verify the above theoretical results,and also show that the public education expenditure with substitution effect has a more significant effect on improving the intergenerational income mobility in China.