Across 800 regions of the World, this research shows that people are more religious when living in regions that are more frequently razed by natural disasters. This is in line with psychological theory stressing that religious people tend to cope with adverse life events by seeking comfort in...

We show that societies with a history of irrigation-based agriculture have been less likely to adopt democracy than societies with a history of rainfed agriculture. Rather than actual irrigation, the empirical analysis is based on how much irrigation potentially can increase yields. Irrigation...

We test the hypothesis that the Internet is a useful technology for controlling corruption. In order to do so, we develop a novel identification strategy for Internet diffusion. Power disruptions damage digital equipment, which increases the user cost of IT capital, and thus lowers the speed of...

Empirically, a higher frequency of lightning strikes is associated with slower growth in labor productivity across the 48 contiguous U.S. states after 1990; before 1990, there is no correlation between growth and lightning. Other climate variables (e.g., temperature, rainfall, and tornadoes) do not...

Summary History, not predictions of CGE models or cross-country growth studies, shows a strong relationship between trade and development. Vietnam's experience with bilateral trade agreements, comparing actual outcomes with predictions from existing models, demonstrates this and the limitations...

We hypothesize that cultural appreciation of hard work and thrift,the Protestant ethic according to Max Weber,had a pre-Reformation origin.The proximate source of these values was,according to the proposed theory,the Catholic Order of Cistercians.In support,we first document an impact from the...