Philip Keefer is a Principal Economic Advisor at the Inter-American Development Bank. Prior to this he served as a Lead Research Economist in the Development Research Group of the World Bank. The focus of his work, based on experience in countries ranging from Bangladesh, Benin, Brazil, and the Dominican Republic to Indonesia, México, Perú and Pakistan, is the determinants of political incentives to pursue economic development. His research, on issues such as the impact of insecure property rights on growth; the effects of political credibility on policy; the sources of political credibility in democracies and autocracies; and the influence of political parties on conflict, political budget cycles, and public sector reform, has appeared in journals ranging from the Quarterly Journal of Economics to theAmerican Political Science Review.