1. Department of Economics & Center for Economic Research, College of Economics and Management, Southwest University, Chongqing, People’s Republic of China
2. Collaborative Innovation Program for Promoting the Non-Public Sector and Its Role in Poverty Reduction in Western China, Southwest University, Chongqing, People’s Republic of China
3. School of Public Finance and Taxation Affairs, Southwestern University of Finance and Economics, Chengdu, People’s Republic of China