1. Department of Managerial Psychology, Faculty of Management and Business, University of Prešov, Konštantínova 16, 080 01 Prešov, Slovakia
2. Department of Economics and Economy, Faculty of Management and Business, University of Prešov, Konštantínova 16, 080 01 Prešov, Slovakia
3. Faculty of Mining, Ecology, Process Control and Geotechnologies, Technical University of Košice, Letná č. 1/9, 042 00 Košice-Sever, Slovakia
4. Department of Finance, Accounting and Mathematical Methods, Faculty of Management and Business, University of Prešov, Konštantínova 16, 080 01 Prešov, Slovakia