This paper provides evidence of the long-run effects of a permanent increase in agricultural productivity on conflict. We construct a newly digitized and geo-referenced dataset of battles in Europe, the Near East and North Africa covering the period between 1400 and 1900 CE. For variation in...

This paper evaluates income tax reforms in China and India. The combination of fast income growth and under-indexed tax schedule in China implies the fraction of the Chinese population subject to income tax has increased from less than 0.1 percent in 1986 to about 20 percent in 2008, while it...

In the past century, more people have perished from famine than from the two World Wars combined. Many more were exposed to famine and survived. Yet we know almost nothing about the long run impact of famine on these survivors. This paper addresses this question by estimating the effect of...

This paper provides an overview of the long-term impacts of the Columbian Exchange -- that is, the exchange of diseases, ideas, food crops, technologies, populations, and cultures between the New World and the Old World after Christopher Columbus' voyage to the Americas in 1492. We focus on the...

In this paper regional variation in suitability for cultivating potatoes, together with time variation arising from their introduction to the Old World from the Americas is being exploited, to estimate the impact of potatoes on Old World population and urbanization. Their results show that the...

Many believe that increasing the quantity of children will lead to a decrease in their quality. This paper exploits plausibly exogenous changes in family size caused by relax- actions in China's One Child Policy to estimate the causal effect of family size on school enrollment of the …first...

Economists have long argued that the sex imbalance in developing countries is caused by underlying economic conditions. This paper uses exogenous increases in sex-specific agricultural income caused by post-Mao reforms in China to estimate the effects of total income and sex-specific income on...

This paper presents novel empirical evidence on the impact of access to abortion on sex ratios at birth (SRB), excess female mortality (EFM) and fertility in Taiwan. For identification, we exploit plausibly exogenous variation in the availability of sex-selective abortion caused by the...

This paper estimates the long run impact of famine on survivors in the context of China's Great Famine. To address problems of measurement error of famine exposure and potential endogeneity of famine intensity, we exploit a novel source of variation in regional intensity of famine derived from...

This paper uses a country-level panel data set to test the hypothesis that the United States biases its human rights reports of countries based on the latters' strategic value. We use the difference between the U.S. State Department's and Amnesty International's reports as a measure of U.S....