作者单位: | [1]Ph.D. candidate of Economics and Management of Beijing Jiaotong University; The author focuses his research on industry economy and government regulation economics; Address: Doctor 2001, Mailbox 235, School of Economics and Management, Beijing Jiaotong University, Beijing, P. R. China, Postcode: 100044 [2]不详, Mailbox 235, School of Economics and Management, Beijing Jiaotong University, Beijing, P. R. China, Postcode: 100044 |