[Xiao, Yi] Cent China Normal Univ, Sch Informat Management, Wuhan 430079, Peoples R China.
[Liu, John J.] City Univ Hong Kong, Ctr Transport Trade & Financial Studies, Hong Kong, Hong Kong, Peoples R China.
[Xiao, Jin] Sichuan Univ, Sch Business, Chengdu 610064, Peoples R China.
[Hu, Yi] Univ Chinese Acad Sci, Sch Management, Beijing 100190, Peoples R China.
[Bu, Hui] Beihang Univ, Sch Econ & Management, Beijing 100191, Peoples R China.