1. Anhui Finance & Trade Vocational College, Hefei, Anhui 230601, China
2. Party School of Anhui Provincial Committee of the Communist Party of China (Anhui Academy of Governance), Hefei 230022, Anhui, China
3. Anhui Economic Management Institute, Hefei, Anhui 230059, China
4. School of Management, Hefei University of Technology, Hefei, Anhui 230009, China