1. EKA University of Applied Sciences , Pernavas 62 , Riga , Latvia
2. Faculty of Engineering Economics and Management, Riga Technical University , Kalnciema 6 , Riga , Latvia
3. BA School of Business and Finance , K. Valdemara 161 , Riga , Latvia
4. Institute of Dynamic Management, Faculty of Business Management, Vilnius Gediminas Technical University , Sauletekio ave. 11 , Vilnius , Lithuania
5. Western Norway University of Applied Sciences , Bjørnsonsgate 45 , Haugesund , Norway