[Liu, Jianmin; Liu, Xiaohan] Changsha Univ Sci & Technol, Sch Econ & Management, Changsha, Peoples R China.
[Liu, Jia] Univ Portsmouth, Sch Accounting Econ & Finance, Portsmouth, England.
[Wu, Jinguang] Hunan Univ Finance & Econ, Sch Finance, Changsha, Peoples R China.
[Hao, Yu] Beijing Inst Technol, Sch Management & Econ, Beijing, Peoples R China.
[Hao, Yu] Int Macau Inst Acad Res, Econ & Management Res Inst, Taipa, Macao, Peoples R China.