1. Institute of Advanced Studies in Humanities and Social Sciences, Beijing Normal University, Zhuhai 519087, China
2. School of Systems Science, Beijing Normal University, Beijing 100875, China
3. International Academic Center of Complex Systems, Beijing Normal University, Zhuhai 519087, China
4. Research Institute of Economics and Management, Southwestern University of Finance and Economics, Chengdu 610074, China
5. School of Public Health, City University of New York, New York, NY 10027, USA