1. College of Economics & Management, Anhui Agricultural University, Hefei, People's Republic of China
2. School of Management, University of Science and Technology of China, Hefei, People's Republic of China
3. School of Finance, Nanjing Audit University, Nanjing, People's Republic of China
4. School of International Economics and Trade, Nanjing University of Finance and Economics, Nanjing, People's Republic of China