1. School of Economics and Business Administration, Chongqing University, Chongqing, P.R. China
2. Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
3. Department of Logistics Management, School of Business and Administration, Chongqing University of Science and Technology, Chongqing, P.R. China