1. Faculty of Economics and Business Administration, Babes-Bolyai University, No. 58-60, Teodor Mihali Street, 400591 Cluj-Napoca, Romania
2. Department of Economics, Faculty of Economics, Informatics and Engineering “Vasile Goldis”, Western University of Arad, No. 94, B-dul Revolut¸iei, 310025 Arad, Romania
3. Doctoral School of Economics, Faculty of Economics, University of Oradea, No. 1, Str. Universităţii, Bihor, 410087 Oradea, Romania
4. Bucharest University of Economic Studies, No. 6, Piaţa Romanaă, Sector 1, 010374 Bucharest, Romania