在既有代际流动研究的基础上，本文将儿童学业成就阶层差异的研究视角从核心家庭扩展至祖辈与父辈同胞构成的亲属网络，考察亲属网络资源对儿童学业成就的影响机制及阶层异质性效应。基于中国家庭追踪调查（CFPS）数据，研究发现，在对儿童学业成就的影响过程中，祖辈网络资源和父辈同胞网络资源分别主要通过社会支持机制和价值观形塑机制发挥作用。此外，亲属网络资源能够缩小儿童学业成就的阶层差异，使低阶层家庭的儿童获得更多学业回报。

Based on existing research on intergenerational mobility, this paper expands the perspective on social class disparities in children's academic achievement from the nuclear family to kinship networks comprised of grandparents and parental siblings, and examines the influence mechanisms and class heterogeneous effects of kinship network resources on children's academic achievement. Drawing on data from the China Family Panel Studies (CFPS), the study finds that in the process of influencing children's academic achievement, grandparents' network resources primarily operate through a social support mechanism, whereas parental siblings' network resources mainly exert their influence through a values-shaping mechanism. Moreover, kinship network resources help narrow social class disparities in academic achievement, enabling children from lower-status families to achieve greater academic returns.

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