We study the role of physicians in driving geographic variation of US healthcare utilization. We estimate a model that separates variation in average utilization of Medicare beneficiaries due to physicians, non-physician supply side factors, and patient demand. The model is identified by...

The COVID-19 pandemic has profoundly affected the United States healthcare system, resulting in major disruptions in the delivery of essential care and causing crippling financial losses that threaten the viability of millions of medical practices. There is little empirical evidence on the types...

Variation in technology adoption is a key driver of differences in productivity. Previous studies sought to explain variations in technology adoption by heterogeneity in profitability, costs of adoption, or other factors. Less is known about how adoption is affected by bias in the perceived...

Difference-in-Difference (DID) estimators are a valuable method for identifying causal effects in the public health researcher's toolkit. A growing methods literature points out potential problems with DID estimators when treatment is staggered in adoption and varies with time. Despite this, no...

High administrative costs in U.S. health care have provoked concern among policymakers over potential waste, but many of these costs are generated by managed care policies that trade off bureaucratic costs against reductions in moral hazard. We study this trade-off for prior authorization...

Moral hazard and provider-induced demand may contribute to overutilization of scarce health care resources. The U.S. health care system includes several compensatory cost-containment mechanisms, but their effects depend on how patients and providers respond. We investigate hospice programs'...

We study the impact of losing health insurance on criminal activity by leveraging one of the most substantial Medicaid disenrollments in U.S. history, which occurred in Tennessee in 2005 and lead to 190,000 non-elderly and non-disabled adults without dependents unexpectedly losing coverage....

The national hepatitis C elimination initiative provides an opportunity to dramatically expand access to hepatitis C virus (HCV) treatment and put the US on a path to eliminating hepatitis C. Our objective was to project the health benefits and cost savings of this initiative. A previously...

We explore the role that physicians play in moderating compliance with recommended vaccinations. Using administrative data on the universe of Danish children and their healthcare providers, we first construct and validate a measure of providers' propensities to comply with recommended...

This paper examines whether loss of locally available hospital-based obstetric services affects racial/ethnic disparities in intrapartum care access and birth outcomes in rural areas of the US. To conduct causal inference, we combine difference-in-difference and propensity score matching methods...