CHRISTOPHER B. BARRETT Lecturer in Agricultural Economics, Utah State University MICHAEL R. CARTER Department of Agricultural Economics, University of Wisconsin MICHAEL GAVIN Senior Economist, Research Department, Inter-American Development Bank STEPHEN JONES Food Studies Group, Queen Elizabeth House, University of Oxford LUIZ A. PEREIRA DA SILVA Senior Economist, African Region, The World Bank ANDRÉS SOLIMANO Director of Argentina and Chile, Inter-American Development Bank ROBERT TIBANA University of Oxford; previously Lecturer, Eduardo Mondlane University, Maputo DANIEL TOMMASI Economic consultant, Paris