1. Department of Economics, College of Business Administration, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
2. National University of Science and Technology Politehnica Bucharest, Pitesti University Center, Pitesti, Romania
3. Institute of Doctoral and Post-Doctoral Studies, University Lucian Blaga of Sibiu, Sibiu, Romania
4. UNEC Research Methods Application Center, Azerbaijan State University of Economics (UNEC), Baku, Azerbaijan
5. Faculty of Engineering and Economics of Transport, Department of Management and Logistics, Maritime University of Szczecin, Szczecin, Poland
6. Department of Economics, University of Ain Temouchent, Ain Temouchent, Algeria
7. Université de Lorraine, CEREFIGE, Metz, France