We provide new insights regarding the finding that Medicaid increased emergency department (ED) use from the Oregon experiment. We find meaningful heterogeneous impacts of Medicaid on ED use using causal machine learning methods. The treatment effect distribution is widely dispersed, and the...

How should unemployment benefits vary in response to the economic crisis induced by the COVID-19 pandemic? We answer this question by computing the optimal unemployment insurance response to the COVID-induced recession.We compare the optimal policy to the provisions under the CARES Act-which...

We investigate the optimal response of unemployment insurance to economic shocks, both with and without commitment. The optimal policy with commitment follows a modified Baily-Chetty formula that accounts for job search responses to future UI benefit changes. As a result, the optimal policy with...

Research in Economics on COVID-19 posits an economy subject to disease dynamics, which are often seriously misspecified in terms of speed and scale. Using a social planner problem, we show that such misspecifications lead to misguided policy. Erroneously characterizing a relatively slow-moving...