The Effects of Poor Neonatal Health on Children's Cognitive Development
利用佛罗里达州1992-2002年所有出生儿童的出生与学校记录数据，研究发现出生体重对认知发展的影响在整个学业阶段基本恒定，且不受家庭背景和学校质量影响。
We make use of a new data resource—merged birth and school records for all children born in Florida from 1992 to 2002—to study the relationship between birth weight and cognitive development. Using singletons as well as twin and sibling fixed effects models, we find that the effects of early health on cognitive development are essentially constant through the school career; that these effects are similar across a wide range of family backgrounds; and that they are invariant to measures of school quality. We conclude that the effects of early health on adult outcomes are therefore set very early.