1. International Food Policy Research Institute (IFPRI) Cairo Egypt
2. Institute of Agricultural Economics University of Kiel Kiel Germany
3. Department of Economics University of Buea Buea Cameroon
4. Department of Agricultural Economics and Agribusiness University of Buea Buea Cameroon
5. Centre for Independent Development Research (CIDR) Buea Cameroon
6. World Agroforestry (ICRAF) Yaounde Yaounde Cameroon