1. School of Economics and Management, Northwest University, Xi’an, China
2. School of Economics and Management, Shaanxi University of Science and Technology, Xi’an, China
3. School of Management, Northwest University of Political Science and Law, Xi’an, China
4. School of Management, Hainan University, Haikou, China
5. School of Economics and Management, Leshan Normal University, Leshan, China