What are the economic consequences to U.S. natives of the growing diversity of American cities? Is their productivity or utility affected by cultural diversity as measured by diversity of countries of birth of U.S. residents? We document in this paper a very robust correlation: US-born citizens...

This paper examines the effect of U.S. food aid on conflict in recipient countries. To establish a causal relationship, we exploit time variation in food aid caused by fluctuations in U.S. wheat production together with cross-sectional variation in a country's tendency to receive any food aid...

We estimate spillovers from public funding for health research in the context of the NIH's Fogarty International Center's AIDS International Training and Research Program, which aims to strengthen scientific capacity in AIDS endemic countries by providing African researchers with training...

Using Census and CPS data, we show that U.S.-born Mexican Americans who marry non-Mexicans are substantially more educated and English proficient, on average, than are Mexican Americans who marry co-ethnics (whether they be Mexican Americans or Mexican immigrants). In addition, the non-Mexican...

We model inter-group conflict driven by economic changes within groups. We show that if group incomes are low, increasing group incomes raises violence against that group, and lowers violence generated by it. We then apply the model to data on Hindu-Muslim violence in India. Our main result is...

We examine the effects of aid on growth--in cross-sectional and panel data--after correcting for the bias that aid typically goes to poorer countries, or to countries after poor performance. Even after thiscorrection, we find little robust evidence of a positive (or negative) relationship...

Over the last few years, colonialism, especially as pursued by Europeans, has enjoyed a revival in interest among both scholars and the general public. Although a number of new accounts cast colonial empires in a more favorable light than has generally been customary, others contend that...

We examine the effect of HIV/AIDS infection risks on the earnings of registered nurses (RNs) and other health care workers by combining data on metropolitan statistical area (MSA) AIDS prevalence rates with annual 1987 --2001 Current Population Survey (CPS) and quadrennial 1988 --2000 National...

The history of foreign development assistance is one of movement away from addressing immediate needs and toward focusing on the underlying causes of poverty. A recent manifestation is the move towards sustainability,' which stresses community mobilization, education, and cost-recovery. This...

Debt relief is unlikely to stimulate investment and growth in the world's highly indebted poor countries (HIPCs). This is because the HIPCs do not suffer from debt overhang. The principal obstacle to investment and growth in the world's poorest countries is a lack of basic economic institutions...