[1] Shandong Univ, Business Sch, Weihai, Peoples R China
[2] Cent Univ Finance & Econ, Business Sch, Beijing, Peoples R China
[3] South China Univ Technol, Dept Elect Business, Guangzhou, Peoples R China
[4] Korea Univ, Dept Logist Serv & Operat Management, Business Sch, Seoul, South Korea
[5] Korea Univ, Business Sch, Dept Logist Serv & Operat Management, Seoul 02841, South Korea