Using data for 128 countries we document low (high) elasticities of agricultural output with respect to labor in economies within temperate (tropical/highland) climate zones.  Adopting a standard model of structural change we show that this technology heterogeneity determines the speed of...

Suppression of the slave trade after 1807 increased the incidence of conflict between Africans.  We use geo-coded data on African conflicts to uncover a discontiuous increase in conflict after 1807 in areas affected by the slave trade.  In West Africa, the slave trade declined.  This...

Women in developing countries are disempowered relative to their contemporaries in developed countries.  High youth unemployment and early marriage and childbearing interact to limit human capital investment and enforce dependence on men.  In this paper we evaluate an attempt to jump-start...

We show that the long-run consequences of historical warfare are different for Sub-Saharan Africa than for the rest of the Old World.  We identify the locations of over 1,750 conflicts in Africa, Asia, and Europe from 1400 to 1799.  We find that historical warfare predicts greater state...

Agricultural and other physically demanding sectors are important sources of growth in developing countries but prevalent diseases such as malaria adversely impact the productivity, labor supply, and occupational choice of workers in these sectors by reducing physical capacity.  This study...

Donors who try to impose policy conditionality on countries receiving their aid commonly face confflicting incentives between using aid to induce income-increasing reforms and using aid to assist low-income countries: this confflict can lead to a time-consistency problem. This paper o¤ers a...

Schooling is typically found to be highly correlated with individual earnings in African countries.  However, African firm or sector level studies have failed to identify a similarly strong effect for average worker schooling levels on productivity.  This has been interpreted as evidence that...

This is a pioneering study of the determinants of the subjective well-being of ethnic minority people in rural China, using a specially designed sample survey relating to 2011.  The underlying hypothesis is that the lifestyle and attitudes of ethnic minorities contribute to their happiness. ...

Many recent descriptive studies find convex schooling-earnings profiles in developing countries.  In these countries forward-looking students should attach option values to completing lower levels of schooling.  Another option value may arise due to the uncertain economic environment in which...

What is the impact of modern transportation technology on long-run economic change in poor countries with high trade costs?  Rail construction in colonial Sub-Saharan Africa provides a natural experiment: 90% of African rail-road lines were built before independence, in a context where...