1. College of Economics and Management, Huazhong Agricultural University, Wuhan, People's Republic of China
2. Organization of African Academic Doctors, OAAD, Nairobi, Kenya
3. Policy Study Institute, Addis Ababa, Ethiopia
4. College of Business and Economics, Ambo University, Ambo, Ethiopia
5. Research Desk Consulting Ltd, Kwabenya-Accra, Ghana
6. College of Bioinformatics, Huazhong Agricultural University, Wuhan, People's Republic of China