家庭收入是否影响子女教育水平——基于CHNS数据的实证研究

教育是低收入家庭子女改变自身社会地位的重要途径。基于CHNS的数据，本文分别使用OLS、2SLS计量经济方法，分析了家庭收入对子女教育水平的影响。OLS结果显示，家庭收入对子女教育水平的影响为正且显著，使用工具变量对家庭收入的内生性进行控制后（2SLS），家庭收入对子女教育水平的影响依旧为正。分样本的估计结果表明，家庭收入对女儿的影响程度大于其对儿子的影响程度。将家庭收入从低到高依次划分为五个等级的细分样本估计结果显示，随着收入等级的提高，家庭收入对子女教育水平的影响程度呈现出“倒U形”。

The Effects of Family Income on Children Education: An Empirical Analysis of CHNS Data

Education is an important approach for the children from the low income families to promote their social status. Based on CHNS data, this paper analyzes the effects of family income on children＇s education by the two methods of quantitative economical analysis, OLS and 2SLS. The OLS result shows that the family income is positively correlated with children＇s education, after the endogenity of the family income and parents＇ education are controlled by the method of 2SIS, the positive effects of family income on the children＇s education is still significant. It is found that the family income boast of a more significant positive effects on daughters than on sons. The further analysis of the family income by 5 groups of these families from low income to high income implies that the effects of family income on the children＇s education can be described as ＇inversed U shape＇.