1. Antai College of Economics and Management, Shanghai Jiao Tong University, Shanghai 200030, China;
2. College of Business, Shanghai University of Finance and Economics, Shanghai 200433, China;
3. Department of Management Science and Engineering, School of Economics and Management, Tsinghua University, Shenzhen 518055, China;
4. Department of Decision Sciences and Managerial Economics, Business School, Chinese University of Hong Kong, Kowloon, Hong Kong 88888, China