[1] Prince Sultan Univ, Coll Business Adm, Dept Finance, Riyadh, Saudi Arabia
[2] Al Imam Mohammad Ibn Saud Islamic Univ, Coll Econ & Adm Sci, Riyadh, Saudi Arabia
[3] Aston Univ, Dept Finance, Birmingham, England
[4] Prince Sultan Univ, Coll Business Adm, Dept Finance, POB 66833,Raf ha St, Riyadh 11586, Saudi Arabia