  In 2014 the Patient Protection and Affordable Care Act (ACA) introduced the
expansion of Medicaid where states can opt to expand the eligibility for those
in need of free health insurance. In this paper, we attempt to assess the
effectiveness of Medicaid expansion on health outcomes of state populations
using Difference-in-Difference (DD) regressions to seek for causal impacts of
expanding Medicaid on health outcomes in 49 states. We find that in the time
frame of 2013 to 2016, Medicaid expansion seems to have had no significant
impact on the health outcomes of states that have chosen to expand.
