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基于CFPS2012微观调查数据,采用OLS、IV和代际收入流动矩阵分析法,从差异化家庭规模的视角,对家庭规模与代际收入流动性之间的关系进行了实证研究。研究结果表明:中国居民家庭规模对代际收入的流动性有显著的影响;不同家庭规模下,代际收入流动性存在鲜明的差异,亦即随家庭规模的扩大代际收入流动性呈先上升后下降的“倒U型”趋势;较小的家庭规模会引起代际收入传递的“富者愈富”现象,较大的家庭规模会引起代际收入传递的“穷者愈穷”现象,而适度的家庭规模更有利于改善代际收入流动性。
Based on the micro-survey data of CFPS2012, using the OLS, IV and intergenerational income flow matrix analysis method, the relationship between household size and intergenerational mobility is empirically studied from the perspective of differentiated family size. The results show that the size of Chinese households has a significant impact on the intergenerational income liquidity. Under different family scales, there is a clear difference in intergenerational income mobility, that is, with the increase of family size, the intergenerational income mobility first rises After the decline of the “inverted U-shaped” trend; smaller size of the family will lead to intergenerational income transfer “rich more” phenomenon, a larger family size will cause intergenerational income transfer “poor Poorer ”phenomenon, while a modest household size is more conducive to improving intergenerational income mobility.