Affiliation: | 1.Center for Green Engineering and Sustainable Development, Chang’ an University, Xi’an, 710064, Shaanxi, China ;2.School of Economics and Management, Chang’ an University, Xi’an, 710064, Shaanxi, China ;3.College of Transportation Engineering, Chang’ an University, Xi’an, 710061, Shaanxi, China ;4.School of Management, University of Bath, Bath, England ; |