[1] Jiangsu Normal Univ, Business Sch, Dept Int Econ & Trade, Xuzhou, Jiangsu, Peoples R China
[2] Univ Shanghai Sci & Technol, Business Sch, Dept Business Adm, Shanghai, Peoples R China
[3] Zhejiang Univ Finance & Econ, Sch Business Adm, Dept Mkt, Hangzhou, Peoples R China
[4] Nanjing Forestry Univ, Dept Appl Econ, Coll Econ & Management, Nanjing, Peoples R China