This research advances the hypothesis and establishes empirically that interpersonal population diversity has contributed significantly to the emergence, prevalence, recurrence, and severity of intrasocietal conflicts. Exploiting an exogenous source of variations in population diversity across...

We estimate whether risk preferences are affected by traumatic events by using a unique survey of Sri Lankan twins which contains information on individual's exposure to the 2004 Indian Ocean Tsunami, participation as a combatant in the civil war, validated measures of mental health and risk...

Does fractionalization change over time? If so, are there any substantial implications for economic performance? To answer such questions, we construct a new panel data set with fractionalization measures for 26 former communist countries covering the period from 1989 to 2002. Our...

This survey reviews the recent research on trust, institutions and growth. It discusses the various measures of trust and documents the substantial heterogeneity of trust across space and time. The conceptual mechanisms and the methods employed to identify the causal impact of trust on economic...

This survey reviews the recent research on trust, institutions and growth. It discusses the various measures of trust and documents the substantial heterogeneity of trust across space and time. The conceptual mechanisms and the methods employed to identify the causal impact of trust on economic...

This research explores the historical roots of the division of labor in pre-modern societies. It advances the hypothesis and establishes empirically that intra-ethnic diversity had a positive effect on the division of labor across ethnicities in the pre-modern era. Exploiting a variety of...

We study the impact of the Fukushima disaster on people's mental well‐being in another industrialized country, more than 5000 miles distant. The meltdown significantly increased environmental concerns by 20% among the German population. Subsequent drastic policy action permanently shut down...

Using US fatality data from 1975 to 2003, Levitt (2008) shows that child safety seats do not significantly reduce fatalities for children aged two to six as compared to standard seat belts. Although we were unable to gain access to the original programs and dataset used, we were able to...

We study the impact of the Fukushima disaster on people's mental well‐being in another industrialized country, more than 5000 miles distant. The meltdown significantly increased environmental concerns by 20% among the German population. Subsequent drastic policy action permanently shut down...

Using US fatality data from 1975 to 2003, Levitt (2008) shows that child safety seats do not significantly reduce fatalities for children aged two to six as compared to standard seat belts. Although we were unable to gain access to the original programs and dataset used, we were able to...