[1] Baoji Univ Arts & Sci, Sch Econ & Management, Baoji 721013, Peoples R China
[2] Guangdong Univ Foreign Studies, Sch Econ & Trade, Guangzhou 510006, Peoples R China
[3] King Saud Univ, Coll Engn, Sustainable Energy Technol SET Ctr, POB 800, Riyadh 11421, Saudi Arabia
[4] Erciyes Univ, Dept Publ Finance, Kayseri, Turkey