Birth Timing and Neonatal Health
利用西班牙取消儿童福利的自然实验，发现为获取补贴而提前出生的婴儿虽无出生并发症增加，但出生后第二、三周住院率显著上升，提示潜在长期健康损害。
We take advantage of a new natural experiment to evaluate the health effects of scheduling birth early for non-medical reasons on infant health. In 2010, the cancellation of a generous child benefit in Spain led may families to schedule birth early in order to remain eligible for the subsidy. We document that the affected cohort of children did not suffer any increase in birth complications or medical conditions right at birth, but were significantly more likely to be admitted to hospital during their second and third weeks of life, suggesting potentially persistent negative health effects.