[1] Anhui Univ Finance & Econ, Sch Int Trade & Econ, Bengbu 233030, Peoples R China
[2] Shanghai Univ, Sch Econ, 99 Shangda Rd,Baoshan Campus, Shanghai 200444, Peoples R China
[3] ILMA Univ, Fac Management Sci, Dept Business Adm, Karachi, Pakistan
[4] Univ Birmingham, Coll Social Sci, Birmingham Business Sch, Dept Econ, Birmingham B15 2TT, W Midlands, England
[5] Imam Abdulrahman Bin Faisal Univ, Coll Architecture & Planning, Dept Urban & Reg Planning, POB 1982, Dammam 31451, Saudi Arabia
[6] Univ Espiritu Santo, Esai Business Sch, Samborondon 091650, Ecuador