Fertility Transitions Along the Extensive and Intensive Margins
在标准数量-质量模型中引入广延边际，揭示了生育转型的新机制。以受大规模学校建设计划影响的南方黑人女性为样本，发现教育机会改善使女性更可能生育至少一个孩子但家庭规模更小，而自身受教育程度提高则延迟生育并进入更高质量职业。
By allowing for an extensive margin in the standard quantity-quality model, we generate new insights into fertility transitions. We test the model on Southern black women affected by a large-scale school construction program. Consistent with our model, women facing improved schooling opportunities for their children were more likely to have at least one child but chose to have smaller families overall. By contrast, women who themselves obtained more schooling due to the program delayed childbearing along both the extensive and intensive margins and entered higher quality occupations, consistent with education raising opportunity costs of child rearing.