1. Faculty of Science; Kunming University of Science and Technology; Kunming China
2. School of Management and Economics; University of Electronic Science and Technology of China; Chengdu China
3. Business School; Sichuan University; Chengdu China
4. Department of Logistics and Maritime Studies; The Hong Kong Polytechnic University; Kowloon Hong Kong
5. Department of Statistics; Feng Chia University; Taichung Taiwan