The authors examine the Millennium Villages Project (MVP), an experimental and intensive package intervention to spark sustained local economic development in rural Africa, to illustrate the benefits of rigorous impact evaluation. Estimates of the project’s effects depend heavily on the evaluation m...

This study uses a unique natural experiment to test a simple model of international differences in workers’ wages and productivity. Its findings have implications for open questions in labor, growth, international, and development economics.

This paper argues that every rich country should consider its immigration policy to be part of its international development policy, and vice versa. A development policy that includes migration will be more effective; an immigration policy that includes development will better serve rich countries’ ...