Affiliation: | 1. Business School, Beijing Normal University, Xin Jie Kou Wai Street 19, Beijing, 100875, China 2. College of Information Science and Technology, Beijing Normal University, Beijing, China 3. Brunel University, London, UK 4. The George Washington University, 801 22nd St. NW, Suite 704, Washington, DC, 20052, USA
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