The welfare associated with public insurance is often difficult to quantify. Relative to private insurance, a fundamental difficulty is that public insurance is typically compulsory, so the demand for coverage is unobserved and thus cannot be used to analyze welfare. However, in many public...

A central question in the debate over privatized Medicare is whether increased government payments to private Medicare Advantage (MA) plans generate lower premiums for consumers or higher profits for producers. Using difference-in-differences variation brought about by a sharp legislative...

There is ongoing policy debate about whether government insurance coverage mandates are necessary to effectively address market failures in private insurance markets. This paper analyzes the demand for insurance in the absence of a coverage mandate and the potential market failure rationale for...

Most health insurance uses cost-sharing to reduce excess utilization. Supplemental insurance can blunt the impact of this cost-sharing, increasing utilization and exerting a negative externality on the primary insurer. This paper estimates the effect of private Medigap supplemental insurance on...

A central question in the debate over privatized Medicare is whether increased government payments to private Medicare Advantage (MA) plans generate lower premiums for consumers or higher profits for producers. Using difference-in-differences variation brought about by a sharp legislative...

The welfare associated with public insurance is often difficult to quantify because the demand for coverage is unobserved and thus cannot be used to analyze welfare. However, in many settings, individuals can purchase private insurance to supplement public coverage. This paper outlines an...

A growing number of American children are exposed to gun violence at their schools, but little is known about the impacts of this exposure on their human capital attainment and economic well-being. This paper studies the causal effects of exposure to shootings at schools on children’s...

A growing number of American children are exposed to gun violence at their schools, but little is known about the impacts of this exposure on their human capital attainment and economic well-being. This paper studies the causal effects of exposure to shootings at schools on children's...