根据甘肃省14个贫困村的入户调查数据,本文从劳动力受教育水平、收入结构、健康状况和家庭资源禀赋等方面对贫困与非贫困家庭的特征进行了比较,并在考虑内生性的基础上,运用工具变量法测算了贫困与非贫困家庭的教育收益率.估计结果显示:在纠正了内生性偏差后,贫困与非贫困家庭教育收益率均有所提高,贫困家庭教育收益率显著低于非贫困家庭.进一步分析认为,导致这一差异的原因主要和家庭负担、家庭资本有关.%Based on the survey data which collected from 14 poverty villages in Gansu province, this paper compared poor families with non-poor families in terms of education level of labor force, income structure, health condition, and family resource endowment. Then, estimating the returns to education for poor and non-poor families by using instrumental variable method, while considering the problem of endogenous. The estimated results show that after correcting endogenous bias, the returns to education of both poor and non-poor families increase, while that of poor families is significantly lower than non-poor families. Further analysis suggests that the reasons leading to this difference are mainly related to the family burden constraints and family capital.
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