Saving Babies: The Efficacy and Cost of Recent Changes in the Medicaid Eligibility of Pregnant Women
研究1979至1992年间孕妇医疗补助资格大幅提升对健康结果的影响，发现资格提高显著降低了低出生体重和婴儿死亡率，且针对低收入群体的资格变化效果更大。
The authors provide direct evidence on the effect of health insurance on health outcomes by examining the dramatic increases in the eligibility of pregnant women for the Medicaid program between 1979 and 1992. They find that the 30-percentage-point rise in Medicaid eligibility significantly lowered the incidence of low birth weight and infant mortality. Targeted changes in Medicaid eligibility that were restricted to specific low-income groups had much larger effects on birth outcomes than broader expansions of eligibility to women with higher income levels because of much lower take-up of this entitlement by the latter group. Copyright 1996 by University of Chicago Press.