1. School of Public Affairs and Administration, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China
2. Center for West African Studies, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China
3. Faculté des sciences économiques et de gestion, Université de Lomé (Togo), Lomé, Togo
4. Applied Mathematics Department, Faculty of Applied Science and Technology, Koforidua Technical University, Koforidua, Ghana
5. Department of Marketing, Koforidua Technical University, Koforidua, Ghana
6. Faculty of Business and Management Studies, Koforidua Polytechnic, Koforidua, Ghana