Replication Data for: Policy and Politics in the Expansion of Medicaid

In their influential paper on the effects of the 2010 Patient Protection and Affordable Care Act (ACA) on political participation, Clinton and Sances (2018) argue that counties in states that expanded Medicaid in January 2014 saw higher voter registration and turnout, compared to counties in states that did not expand Medicaid. This paper makes three main sets of contributions. First, we report replication results that corroborate Clinton and Sances’s main findings. However, in one of our robustness checks, we find greater uncertainty to these findings than what the authors report. Finally, our two extensions to the study contribute further insights and possible nuance conditional on further work. One extension uses simulation to find additional support for the arguments, but greater uncertainty to the models. The other extension reports significant racial heterogeneity in the effects on political participation.