1. School of Economics, Zhejiang University of Technology, Hangzhou, People's Republic of China
2. Advanced Modeling and Applied Computing Laboratory, Department of Mathematics, The University of Hong Kong, Hong Kong;
3. Hughes Hall, Cambridge, UK
4. School of Economics and Management, Beijing University of Chemical Technology, Beijing, People's Republic of China
5. Department of Applied Mathematics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
6. Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
7. School of Management and Economics, University of Electronic Science and Technology of China, Chengdu, People’s Republic of China