1. Doctoral School of Economic and Regional Sciences, Hungarian University of Agriculture and Life Sciences(MATE), Gödöllő, Hungary
2. Department of Business Management, Faculty of Management, University of Tehran, Tehran, Iran
3. Department of Management, Economics and Accounting, Payame Noor University, Tehran, Iran
4. Department of Management, Rasht Branch, Islamic Azad University, Rasht, Iran
5. Institute of Agricultural and Food Economics, Hungarian University of Agriculture and Life Sciences (MATE), Gödöllő, Hungary