1. Chinese Academy of International Trade and Economic Cooperation, Beijing 10071, China
2. School of Business Administration, Zhejiang Gongshang University, Hangzhou 310018, China
3. School of E-Commerce & Management Science, Zhejiang Gongshang University, Hangzhou 310018, China
4. Sunyard System Engineering Co., Ltd., Hangzhou 310053, China
5. College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
6. Zhijiang College, Zhejiang University of Technology, Shaoxing 312030, China