Income, the Earned Income Tax Credit, and Infant Health
利用联邦税改的准实验变化，评估劳动所得税抵免（EITC）对婴儿健康的影响，发现EITC降低了低出生体重发生率并提高了平均出生体重，机制包括增加产前护理和减少吸烟等不良健康行为。
This paper uses quasi-experimental variation from federal tax reform to evaluate the effect of the EITC on infant health outcomes. We find that the EITC reduces the incidence of low birth weight and increases mean birth weight: a $1,000 treatment-on-the-treated leads to a 2 to 3 percent decline in low birth weight. Our results suggest that the candidate mechanisms include more prenatal care and less negative health behaviors (smoking). Additionally, we find a shift from public to private insurance coverage, and for some a reduction in insurance overall, indicating a potential change in the quality and perhaps quantity of coverage.