[1] Jilin Agr Univ, Sch Econ & Management, Changchun 130000, Peoples R China
[2] North East Agr Univ, Inst Econ & Management, Harbin, Peoples R China
[3] China Mobile Xiongan Informat & Commun Technol Co, Baoding, Peoples R China
[4] Univ Edinburgh, Business Sch, Finance Dept, Edinburgh, Scotland