1. School of Economics, Beijing Technology and Business University, Beijing, China
2. Institute of Western China Economic Research, Southwestern University of Finance and Economics, Chengdu, Sichuan province, China
3. Institute of Ecological Civilization College of Economics and Management Zhejiang A&F University, Hangzhou City, Zhejiang Province, China
4. School of Business Administration, Southwestern University of Finance and Economics, Chengdu, China
5. School of international development and cooperation, University of International Business and Economics, Beijing, China