1. School of Economics, JiNan University, Guangzhou, China
2. Institute of Resource, Environment and Sustainable Development Research, JiNan University, Guangzhou, China
3. School of Economics and Management, Nanjing University of Information Science and Technology, Nanjing, China
4. College of Economics and Management, China Agricultural University, Beijing, China
5. State Grid Anhui Electric Power Company, Hefei, China
6. School of Management, Hefei University of Technology, Hefei, China