1. Department of Health Management, Biruni University, 34010 Istanbul, Turkey
2. Department of Educational Sciences, Hasan Ali Yucel Faculty of Education, Istanbul University-Cerrahpaşa, 34500 Istanbul, Turkey
3. Department of Economics, Plekhanov Russian University of Economics (PRUE), 117997 Moscow, Russia
4. Department of Economics, Financial University under the Government of the Russian Federation, 125167 Moscow, Russia
5. Management Sciences Department, Business School, German Jordanian University, Amman 11180, Jordan