1. School of Management, University of Science and Technology of China, Hefei, P.R. China
2. School of Management, Jiangsu University, Zhenjiang, P.R. China
3. Environmental Protection Agency, Eastern Region, Ghana
4. Faculty of Development Studies, Presbyterian University, Akropong, Ghana
5. School of Finance, Zhongnan University of Economics and Law, Wuhan, P.R. China