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考察农民工代际收入流动性以及父代是否外出务工对代际收入流动性的影响,发现父代未外出务工与子代农民工之间的代际收入流动性高于父代外出务工的两代农民工家庭。进一步使用Eriksson“条件收入弹性”中间变量法,从人力资本、社会资本、职业代际传递三条路径对代际收入流动系数进行分解并考察各路径的贡献率,结果发现:对父代未外出务工样本,人力资本是代际收入传递的直接路径,社会资本是间接路径;对父代外出务工样本,代际职业传递和社会资本传递加强了代际间收入传递,其中代际职业传递路径的贡献率最高。最后,利用倾向匹配法(ATT)处理了社会资本的内生性偏差,通过了严格的稳健性检验,表明社会资本水平较高的农民工收入高于社会资本水平较低的农民工。
Examining the effect of intergenerational income mobility of migrant workers and migrant workers on intergenerational mobility, it is found that the intergenerational income mobility between migrant workers and their offspring is higher than that of their migrant workers On behalf of migrant workers family. Furthermore, we use Eriksson ’s “conditional income elasticity ” intermediate variable method to decompose intergenerational income flow coefficients from three paths: human capital, social capital and intergenerational transfer, and examine the contribution rate of each path. The results show that: Sample of migrant workers, human capital is a direct path to intergenerational income transfer, social capital is an indirect path; on behalf of migrant workers samples, intergenerational occupation transfer and social capital transfer to strengthen intergenerational income transfer, including intergenerational career transfer path The highest contribution rate. Finally, using the propensity matching method (ATT) to deal with the endogenous deviation of social capital, passed the rigorous robustness test, indicating that migrant workers with higher social capital level have higher incomes than migrant workers with lower social capital level.