Document Type : Scientific paper
Authors
1 PhD student in Economics, Faculty of Administrative and Economic Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
2 Associate Professor of Economics, Faculty of Administrative and Economic Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
3 Professor of Economics, Faculty of Administrative and Economic Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
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