1. Development Strategy and Governance Division, International Food Policy Research Institute (IFPRI), Cairo, Egypt
2. Sub-Saharan Africa Program, International Center for Agricultural Research in the Dry Areas (ICARDA), Addis Ababa, Ethiopia
3. Socioeconomics Program, International Maize and Wheat Improvement Center (CIMMYT), Nairobi, Kenya
4. Department of Economics, Trinity College Dublin, Dublin, Ireland
5. Institute for Development Studies, University of Sussex, Brighton, UK