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...

Opioid overdose deaths in older adults have increased substantially over the past two decades. This increase has occurred despite the availability of effective treatments. Methadone, one of just three medications approved by the Food & Drug Administration for opioid use disorder (OUD) treatment,...

When mortality risks of a job increase, economic theory predicts that wages will rise to compensate workers. COVID-19 became a new source of mortality risk from close contact with other workers and customers. Real wages have risen during the COVID-19 era, but research to date has been sparse on...

Safe and effective vaccines have vastly reduced the lethality of the COVID-19 pandemic worldwide, but disparities exist in vaccine take-up. Although the out-of-pocket price is set to zero in the U.S., time (information gathering, signing up, transportation and waiting) and misinformation costs...

Vaccines influence the course of pandemics both directly, by protecting the vaccinated, and indirectly, by reducing transmission to the unvaccinated, a key externality. Estimating direct effects is challenging because of selective vaccine take-up; estimating indirect effects also poses...

The contraction in health care consumption at the start of the pandemic provides insight into central economic questions of waste and productivity in the U.S. health care system. Using linked mortality and Electronic Medical Records, we compare people who had outpatient appointments scheduled...