1. Department of Marketing, Faculty of Business, University Pablo de Olavide of Sevilla, Sevilla, Spain
2. Department of Marketing, Faculty of Social Science and Humanities, University of Zaragoza, Teruel, Spain
3. CU San Isidoro, Centro Universitario San Isidoro, Sevilla, Spain
4. Department of Marketing, Faculty of Economics and Business, University of Zaragoza, Zaragoza, Spain