Over the past decade, rising youth use of e-cigarettes and other electronic nicotine delivery systems (ENDS) has prompted aggressive regulation by state and local governments. Between 2010 and 2019, ten states and two large counties adopted ENDS taxes. Applying a continuous treatment...

During the first four months of 2021, the United States distributed approximately 250 million doses of COVID-19 vaccinations, which resulted in the complete vaccination of nearly 45 percent of the adult population. In the midst of this mass vaccination effort, Texas became the first state to...