1. School of Business Administration Chongqing Technology and Business University Chongqing 400067 P.R. China
2. Research Center for Enterprise Management Chongqing Technology and Business University Chongqing 400067 P.R. China
3. School of Economics and Business Administration Chongqing University Chongqing 400044 P.R. China
4. Chongqing Key Laboratory of Logistics at Chongqing University Chongqing 400044 P.R. China
5. School of Management Engineering Zhengzhou University Zhengzhou 450001 P.R. China