Chatterji Pinka, Lahiri Kajal, Kim Dohyung
Econ Hum Biol. 2014 Dec;15:187-200. doi: 10.1016/j.ehb.2014.09.002.
Using a sample of sibling pairs from a nationally representative U.S. survey, we examine the effects of the fetal growth rate on a set of neurobehavioral outcomes in childhood measured by parent-reported diagnosed developmental disabilities and behavior problems. Based on models that include mother fixed effects, we find that the fetal growth rate, a marker for the fetal environment, is negatively associated with lifetime diagnosis of developmental delay. We also find that the fetal growth rate is negatively associated with disruptive behaviors among male children. These results suggest that developmental disabilities and problem behaviors may play a role in explaining the well-documented association between birth weight and human capital outcomes measured in adulthood.
利用来自一项具有全国代表性的美国调查中的同胞对样本，我们研究了胎儿生长速率对一系列儿童期神经行为结果的影响，这些结果通过父母报告的已诊断发育障碍和行为问题来衡量。基于包含母亲固定效应的模型，我们发现，作为胎儿环境标志的胎儿生长速率与发育迟缓的终生诊断呈负相关。我们还发现，胎儿生长速率与男性儿童的破坏性行为呈负相关。这些结果表明，发育障碍和问题行为可能在解释出生体重与成年期所衡量的人力资本结果之间有据可查的关联中发挥作用。
