MICHAEL WOOLCOCK is Lead Social Development Specialist with the Development Research Group, and a Lecturer in Public Policy at the John F. Kennedy School of Government at Harvard. His research draws on a range of methods to study the role of social institutions in the survival and mobility strategies of marginalized groups, and the way in which these institutions are shaped by the development process, in the present as well as historically. He is a co-founder of the Bank's Justice for the Poor program (a ten-country program of operational research on justice institutions from a user's perspective), and contributed to both the 2000/01 and 2006 World Development Reports. From 2007-2009 he was on external service leave as Professor of Social Science and Development Policy at the University of Manchester, where he was the founding Research Director of the Brooks World Poverty Institute. Prior to joining the Bank in 1998 he taught at Brown University and the University of Queensland (Australia); an Australian native, he has undergraduate degrees from the University of Queensland, a graduate diploma in teaching from Queensland University of Technology, and an MA and PhD in sociology from Brown University.