[1] Univ Macau, Fac Business Adm, Taipa, Macao, Peoples R China
[2] Univ Putra Malaysia, Sch Business & Econ, Serdang, Selangor, Malaysia
[3] Tashkent State Univ Econ, Econometr Dept, Tashkent, Uzbekistan
[4] Shanghai Univ Int Business & Econ, Sch Financial management, Shanghai, Peoples R China