1. School of Finance, Tianjin University of Finance and Economics, Tianjin 300222, People’s Republic of China
2. Laboratory of Fintech and Innovation, Tianjin 300222, People’s Republic of China
3. College of Management and Economics, Tianjin University, Tianjin 300072, People’s Republic of China
4. China Centre for Social Computation and Analytics, Tianjin University, Tianjin 300072, People’s Republic of China