Understanding the potential impacts of climate change on economic outcomes requires knowledge of how economic agents might adapt to a changing climate. We exploit large variation in recent trends in temperature and precipitation to identify adaptation to climate change in US agriculture. We...

We study the effects of an exogenous change in the displayed purchase prices of all mutual funds in individuals' portfolios using data on all security trades, holdings, spending, and income from an online retail bank. We find that individuals are more likely to sell what we call fictitious...

Crop biodiversity has the potential to enhance resistance to strains due to biotic and abiotic factors and to improve crop production and farm revenues. To investigate the effect of crop biodiversity on crop productivity, we build a probabilistic model based on ecological mechanisms to describe...

This research explores the origins of the distribution of time preference across regions. It advances the hypothesis, and establishes empirically, that geographical variations in natural land productivity and their impact on the return to agricultural investment have had a persistent effect on...

This research explores the origins of the distribution of time preference across regions. It advances the hypothesis, and establishes empirically that geographical variations in the natural return to agricultural investment have had a persistent effect on the distribution of time preference...

This research explores the origins of the distribution of time preference across regions. It advances the hypothesis and establishes empirically, that geographical variations in natural land productivity and their impact on the return to agricultural investment have had a persistent effect on...

We study the impact of a major permanent productivity shock -- the introduction of New World crops after 1500 -- on violent conflict in Asia. Using difference in difference and event study frameworks, we show that greater caloric suitability due to the Columbian Exchange increased conflict in...