[1] Hohai Univ, Business Sch, Nanjing, Peoples R China
[2] Comsats Univ Islamabad, Dept Management Sci, Lahore, Pakistan
[3] Nanjing Univ Informat Sci & Technol, Binjiang Coll, Wuxi, Jiangsu, Peoples R China
[4] Comsats Univ Islamabad, Dept Management Sci, Sahiwal, Pakistan