[1] Guangdong Univ Foreign Studies, Guangdong Inst Int Strategies, Guangzhou, Guangdong, Peoples R China
[2] Guangdong Univ Foreign Studies, Huangpu Inst, Guangzhou, Guangdong, Peoples R China
[3] Katholieke Univ Leuven, Dept Chem Engn, Proc & Environm Technol Lab, J De Nayerlaan 5, B-2860 St Katelijne Waver, Belgium
[4] Sunway Univ, Sunway Business Sch, Dept Econ & Finance, Subang Jaya, Malaysia
[5] ILMA Univ, Fac Management Scieces, Dept Business Adm, Karachi, Pakistan
[6] Shenzhen Univ, Coll Econ, Shenzhen, Guangdong, Peoples R China