[1] Jiangxi Univ Finance & Econ, Sch Stat & Data Sci, Nanchang, Peoples R China
[2] Jiangxi Univ Finance & Econ, Key Lab Data Sci Finance & Econ, Nanchang, Peoples R China
[3] Jiangxi Univ Finance & Econ, Res Ctr Financial Dev & Risk Prevent, Nanchang, Peoples R China
[4] Jiangxi Univ Finance & Econ, Sch Appl Econ, Nanchang, Peoples R China