1. Doctoral student, Mgr., Faculty of Management, Department of Marketing and International Trade, University of Prešov
2. Doctoral student, Mgr., Faculty of Management, University of Prešov
3. Professor, Ing., Ph.D., MBA, Center for Applied Economic Research, Faculty of Management and Economics, Tomas Bata University in Zlín
4. Assistant Professor, Ing., Ph.D., Faculty of Management, University of Prešov