[1] Cent Univ Finance & Econ, Sch Finance, Beijing, Peoples R China
[2] Guangxi Sci & Technol Normal Univ, Sch Econ & Management, Laibin 546199, Peoples R China
[3] King Abdulaziz Univ, Fac Econ & Adm, Dept Finance, Jeddah 21422, Saudi Arabia
[4] Punjab Univ Technol Rasul, Mandi Bahauddin 50370, Pakistan