1. Department of Business Administration, School of Engineering and Architecture, University of Zaragoza, Campus Río Ebro, C/María de Luna, 3, 50018 Zaragoza, Spain
2. Department of Business Administration, Faculty of Social and Human Sciences of Teruel, University of Zaragoza, C/Atarazanas 4, 44003 Teruel, Spain
3. Department of Psychology and Sociology, Faculty of Health Sciences, University of Zaragoza, C/Domingo Miral s/n, 50009 Zaragoza, Spain