1. School of Economics, Guizhou University, Guiyang 550025, China
2. College of Business Administration, Guizhou University of Finance and Economics, Guiyang 550025, China
3. College of Public Management, Chongqing Finance and Economics College, Chongqing 401320, China
4. Upper Yangtze River Economic Research Center, Chongqing Technology and Business University, Chongqing 400067, China
5. Guizhou Academy of Social Sciences, Guiyang 550002, China
6. School of Economics, Yunnan University, Kunming 550002, China