1. Faculty of Economics and Informatics, University of Novo Mesto, Na Loko 2, 8000 Novo Mesto, Slovenia
2. Faculty of Economics, University of Kragujevac, Đure Pucara Starog 3, 34000 Kragujevac, Serbia
3. Faculty of Management, University of Primorska, Izolska Vrata 2, 6000 Koper, Slovenia
4. Department of Economics, Faculty of Economics and Management, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic