[Li, Xiuzhen] Shanghai Normal Univ, Sch Finance & Business, Shanghai, Peoples R China.
[Han, Lulu] Changsha Univ Sci & Technol, Sch Econ & Management, Changsha, Hunan, Peoples R China.
[Yang, Lingxiao] Shanghai Lixin Univ Accounting & Finance, Sch Finance, Shanghai, Peoples R China.
[Zhang, Tiezhu] Shanghai Univ Int Business & Econ, Sch Finance, Shanghai, Peoples R China.
[Yang, Lingxiao] Shanghai Lixin Univ Accounting & Finance, Sch Finance, Shanghai 201209, Peoples R China.