Childhood vaccinations are an important input to disease prevention, but vaccination rates have declined over the last … impact. Anecdotal evidence on disease outbreaks suggests that they may prompt vaccination behavior. I use newly compiled data … vaccination rate increases among children at school entry following an outbreak in the year prior. A large outbreak in the county …

The global COVID-19 vaccination campaign is the largest public health campaign in history, with over 2 billion people … understood. Leveraging the staggered rollout of vaccines, we find that the vaccination campaign across 141 countries averted 2 … vaccination in each country proportional to its population, would have saved roughly 670,000 more lives. However, this …

Externalities play a central role in most theories of economic growth. We argue that international externalities, in … have international knowledge externalities. When calibrated, the hybrid model does a surprisingly good job of generating …

externalities are strong and bank franchise values are not too low, the private equilibrium can feature excess dividends relative to …