All for One? Family Size and Children's Educational Distribution under Credit Constraints
研究在信贷约束下，家庭规模对子女教育的影响，发现年长子女可能通过劳动收入资助年幼子女的教育，导致子女受教育年限随兄弟姐妹数量增加而上升。
This paper examines the possibility that a child's years of schooling could increase in the number of siblings, instead of being diminished by competition for parents' resources: if unable to finance the education of their younger children, parents may do so through their older children's labor income. We examine this possibility in a model combining convex returns to education and credit constraints. Our model predicts correlations among family size, years of schooling and birth order, which would not exist when either of these two elements is absent. Empirical patterns shown in the United States, Mexico, and South Korea support the model predictions.