Herbst Chris M
School of Public Affairs, Arizona State University, Phoenix, AZ, USA.
J Policy Anal Manage. 2017;36(2):327-57. doi: 10.1002/pam.21971.
This paper assesses the impact of welfare reform’s parental work requirements on low-income children’s cognitive and social-emotional development. The identification strategy exploits an important feature of the work requirement rules—namely, age-of youngest- child exemptions—as a source of quasi-experimental variation in first-year maternal employment. The 1996 welfare reform law empowered states to exempt adult recipients from the work requirements until the youngest child reaches a certain age. This led to substantial variation in the amount of time that mothers can remain home with a newborn child. I use this variation to estimate the impact of work-requirement induced increases in maternal employment. Using a sample of infants from the Birth cohort of the Early Childhood Longitudinal Study, the reduced form and instrumental variables estimates reveal sizable negative effects of maternal employment. An auxiliary analysis of mechanisms finds that working mothers experience an increase in depressive symptoms, and are less likely to breastfeed and read to their children. In addition, such children are exposed to nonparental child care arrangements at a younger age, and they spend more time in these settings throughout the first year of life.
本文评估了福利改革中对父母的工作要求对低收入儿童认知和社会情感发展的影响。识别策略利用了工作要求规则的一个重要特征——即最小孩子年龄豁免——作为第一年母亲就业的准实验性变化来源。1996年的福利改革法授权各州在最小的孩子达到一定年龄之前,免除成年受助者的工作要求。这导致母亲可以陪伴新生儿在家的时间有很大差异。我利用这种差异来估计工作要求导致的母亲就业增加的影响。使用来自幼儿纵向研究出生队列的婴儿样本,简化形式和工具变量估计显示出母亲就业有相当大的负面影响。对机制的辅助分析发现,在职母亲的抑郁症状有所增加,并且母乳喂养和给孩子读书的可能性较小。此外,这些孩子在更小的年龄就开始接受非父母照顾安排,并且在生命的第一年里,他们在这些环境中度过的时间更多。