1. School of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou, People's Republic of China
2. Collaborative Innovation Center of Statistical Data Engineering, Technology & Application, Zhejiang Gongshang University, Hangzhou, People's Republic of China
3. School of Management Science and Engineering, Southwestern University of Finance and Economics, Chengdu, People's Republic of China
4. Department of Economics, Ghent University, Ghent, Belgium
5. Faculty of Social Sciences and Solvay Business School, Vrije Universiteit Brussel, Ixelles, Belgium
6. School of Business and Economics, Vrije Universiteit Amsterdam, Ixelles, Netherlands