1. City College, KunMing University of Science and Technology, KunMing City, China
2. School of Economics, Yunnan University of Finance and Economics, Kunming City, China
3. Business School, Yunnan University of Finance and Economics, Kunming City, China
4. School of Economics and Management, North China Electric Power University, Beijing, China
5. Riphah School of Business and Management, Riphah International University, Lahore, Pakistan
6. School of Management and Economics, Beijing Institute of Technology, Beijing, China
7. Center for Energy and Environmental Policy Research, Beijing Institute of Technology, Beijing, China
8. Department of Business Administration, ILMA University, Karachi, Pakistan
9. Department of Economics, The Islamia University of Bahawalpur, Pakistan