This research explores the emergence and prevalence of economic specialization and trade in pre-modern societies. It advances the hypothesis, and establishes empirically that population diversity had a positive causal effect on economic specialization and trade. Based on a novel ethnic level...

We empirically study the impact of massive and sudden school closures on teenage pregnancy following the 2011 nationwide student strike in Chile. We estimate that temporary high schools' shutdown increases teenage pregnancies between 1.5% and 3% on average, with places in the highest tercile of...

We empirically study the impact of massive and sudden school closures on teenage pregnancy, following the 2011 nationwide student strike in Chile. Temporary high schools' shutdown increases teenage pregnancies by 1.5% on average, while places in the highest tercile of strike exposure experienced...

We study how fear can affect the behavior of voters and politicians by looking at the Ebola scare that hit the U.S. a month before the 2014 midterm elections. Exploiting the timing and location of the four cases diagnosed in the U.S., we show that heightened concern about Ebola, as measured by...

We study the role of proximity to historical ethnic borders in determining individual land ownership in Sub-Saharan Africa. Following an instrumental variable strategy, we document that individuals have a lower likelihood of owning land near historical ethnic borders. In particular, the...

We study the role of proximity to historical ethnic borders in determining individual land ownership in Sub-Saharan Africa. Following an instrumental variable strategy, we document that individuals have a lower likelihood of owning land near historical ethnic borders. In particular, the...

We examine the effect of malaria on economic development in Africa over the very long run. Using data on the prevalence of the mutation that causes sickle cell disease we measure the impact of malaria on mortality in Africa prior to the period in which formal data were collected. Our estimate is...

Why do people acquire consumer debt? In this article, I draw on the case of Chile and call into question the explanatory power of both the "trickle-down" and "privatized Keynesianism" hypotheses. I argue that these narratives fail to explain why, in the context of wage improvements, consumers...