COVID-19 vaccines are widely available in wealthy countries, yet many people remain unvaccinated. Understanding the effectiveness -- or lack thereof -- of popular vaccination campaign strategies is therefore critical. In this paper, we report results from two studies that tested strategies...

We examine mortality differences between Americans with and without a four-year college degree over the period 1992 to 2021. From 1992 to 2010, both groups saw falling mortality, but with greater improvements for the more educated; from 2010 to 2019, mortality fell for those with a BA and rose for...

The fraction of the population over age sixty-five in many developed countries is projected to rise, in some cases sharply, in coming decades. This has drawn growing interest to research on the health and economic circumstances of individuals as they age. Many individuals are retiring from paid...