1. Department of Pedagogy, Religion, and Social Studies, Western Norway University of Applied Sciences, 5063 Bergen, Norway
2. Department of Civics and Ethical Studies, Adigrat University, Adigrat P.O. Box 50, Tigray, Ethiopia
3. Department of Economics, Aksum University, Aksum P.O. Box 1010, Tigray, Ethiopia
4. Institute of Economics and Economic Development, Theoretical Economics Department, University of Szeged, 6722 Szeged, Hungary
5. Department of Economics, Adigrat University, Adigrat P.O. Box 50, Tigray, Ethiopia