Author(s): |
Chen Guo, School of Economics and Management, Beijing Jiaotong University, Beijing, China, 100044 Qiao Ren, School of Economics and Management, Beijing Jiaotong University, Beijing, China, 100044 Lei Huang, School of Economics and Management, Beijing Jiaotong University, Beijing, China, 100044 Jia Wang, School of Economics and Management, Beijing Jiaotong University, Beijing, China, 100044 |