[1] Cent South Univ, Sch Business, Changsha 410083, Peoples R China
[2] Inner Mongolia Univ, Sch Econ & Management, Inner Mongolia 010021, Peoples R China
[3] Guizhou Univ Finance & Econ, Sch Big Data Applicat & Econ, Guiyang 550025, Guizhou, Peoples R China
[4] Czech Univ Life Sci Prague, Fac Econ & Management, Dept Trade & Finance, Kamycka 129, Prague 6, Czech Republic