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...

We analyze the relationship between pre-colonial warfare and long-run development patterns in India. We construct a new geocoded database of historical interstate conflicts on the Indian subcontinent, from which we compute measures of local exposure to pre-colonial warfare. We document a...