Since the spring of 2021, nearly 700 colleges and universities in the U.S. have mandated that their students become vaccinated against the COVID-19 virus. We leverage rich data on colleges' vaccination policies and semester start dates, along with a variety of county-level public health...

There is a growing body of research examining the labor market returns to college major, motivated by the large returns to skill in the labor market. Prior research has focused almost exclusively on mean effects and has paid little attention to the role of earnings growth and variability. Using...