1. Department of Agricultural Economics and Agribusiness, University of Ghana, Legon, Accra P.O. Box LG 68, Ghana
2. Climate Action Lever, International Centre for Tropical Agriculture (CIAT), Dakar BP 24063, Senegal
3. Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou 04 BP 8645, Burkina Faso