James Marton

TL;DR: The causal effects of the ACA on health insurance coverage in 2014 using data from the American Community Survey are estimated using difference- in-difference-in-differences models that exploit cross-sectional variation in the intensity of treatment arising from state participation in the Medicaid expansion and local area pre-ACA uninsured rates.

TL;DR: Examination of the impacts of the Affordable Care Act on health care access, risky health behaviors, and self-assessed health after two years suggests that the ACA led to sizeable improvements in access to health care in both Medicaid expansion and non-expansion states.

TL;DR: The most significant pieces of the Affordable Care Act (exchanges, subsidies, Medicaid expansion, and individual mandate), implemented in 2014, were associated with sizable gains in coverage nationally that were divided equally between gains in Medicaid and private coverage.

TL;DR: An improvement in the probability of reporting excellent health emerged in the third year, with the effect being largely driven by the non-Medicaid expansions components of the policy.

TL;DR: The fully implemented ACA has been successful in reducing coverage disparities across multiple groups, with these changes being partly attributable to both the Medicaid expansion and nationwide components of the law.