[1] Commun Univ China, Ctr Hongkong, Taiwan & World Affairs, Beijing, Peoples R China
[2] King Abdulaziz Univ, Coll Business, Finance Dept, POB 334, Rabigh 21911, Saudi Arabia
[3] Islamia Univ Bahawalpur, Dept Econ, Bahawalpur, Pakistan
[4] Govt Coll Univ, Dept Econ, Lahore, Pakistan
[5] Wuhan Univ, China Inst Dev Strategy & Planning, Wuhan 430072, Peoples R China
[6] Wuhan Univ, Ctr Ind Econ, Wuhan 430072, Peoples R China