1. Huicong Li, Business School, Beijing Technology and Business University, Beijing 100048, PR China.
2. Erwei Xiang (corresponding author), Newcastle University Business School, Newcastle University, 5 Barrack Road, Newcastle upon Tyne, NE1 4SE, UK; School of Business and Law, Edith Cowan University, 270 Joondalup Drive, WA 6027, Australia.