1. College of Management and Economics, Tianjin Univ., Tianjin 300072, China. ORCID: .
2. Associate Professor, Dept. of Management Science and Engineering, Nanjing Univ. of Aeronautics and Astronautics, Nanjing 211106, China.
3. Associate Professor, College of Management and Economics, Tianjin Univ., Tianjin 300072, China (corresponding author).
4. College of Management and Economics, Tianjin Univ., Tianjin 300072, China.