1. 1 MSc student; Hungarian University of Agriculture and Life Sciences ; Károly Róbert Campus Gyöngyös , Hungary
2. 2 PhD; associate professor; Hungarian University of Agriculture and Life Sciences ; Károly Róbert Campus Gyöngyös ; Hungary
3. 3 PhD student; Hungarian University of Agriculture and Life Sciences ; Doctoral School of Economic and Regional Sciences ; Gödöllö , Hungary
4. 4 Faculty of Economics , University of Miskolc , Hungary