1. Agricultural and Environmental Science, Tennessee State University, Nashville, USA
2. Department of Agricultural and Resource Economics, Colorado State University, Fort Collins, USA
3. Agricultural and Applied Economics, University of Georgia, Athens, USA
4. Markets, Trade, and Institutions Division, International Food Policy Research Institute, Washington, DC, USA
5. Carleton University, Ottawa, Canada
6. Biotechnology, University for Development Studies, Nyankpala, Ghana
7. Biotechnology, University of Jyväskylä, Jyväskylä, Finland