Millions of people refuse COVID-19 vaccination. Using original data from two surveys in nine OECD countries, we analyze the determinants of anti-vax intentions in December 2020 and show that half of the anti-vax individuals were vaccinated by summer 2021. Vaccinations were more likely among...

During 1870-1914, business actors were concerned about the increasing uncertainty and occasional cheating in commercial relationships. In such situations, economic actors seek to improve the information they have, so as to benefit from strong comparative advantages over their competitors. This...