[Ye Liu] Rail Transit Division, China Communications Construction Company, No. 3, Xinqiao Middle Rd., Shunyi District, Beijing 101300, China
Professor, School of Economics and Management, Changsha Univ. of Science and Technology, 45 Chilin Rd., Changsha 410076, China
[Huiqin Liu; Xinyi Zhou; Mingxia Shu] Master’s Candidate, School of Economics and Management, Changsha Univ. of Science and Technology, 45 Chilin Rd., Changsha 410076, China
[Wenbin Tang] Professor, School of Economics and Management, Changsha Univ. of Science and Technology, 45 Chilin Rd., Changsha 410076, China
