1. Agriculture, Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
2. Department of Agricultural Economics, Faculty of Bioscience Engineering, Gent University, Ghent, Belgium
3. Flanders Research Institute for Agriculture, Fisheries and Food, Gent University, Ghent, Belgium
4. Department of Agricultural Extension, Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
5. Social Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Merelbeke, Belgium
6. Texas A&M University, College Station, TX, USA