The Effect of the Affordable Care Act Dependent Coverage Mandate on Health Insurance and Labor Supply: Evidence from Alternative Research Designs
本文使用三种研究设计（双重差分、断点回归和回归扭结设计）评估ACA受抚养人覆盖强制规定对健康保险和劳动供给的影响，发现该规定在实施前三年（2011-2013）显著提高了年轻成年人的保险覆盖率，但未对劳动供给产生可察觉的影响。
This article examines the effect of the Affordable Care Act (ACA) dependent coverage mandate on health insurance and labor supply. The author applies three research designs—difference-in-differences, regression discontinuity, and regression kink designs—and conducts extensive robustness checks and falsification tests, along with a formal test for the location of discontinuity and kink. The author finds no discernible evidence of the labor supply impact of the ACA dependent coverage mandate during the first three years after its implementation (2011–2013), despite its substantial impact on health insurance coverage for the eligible young adults. The author attributes this finding to the fact that until 2014, grandfathered plans were not required to provide dependent coverage to those young adult workers who obtained insurance through their own employer.