1. Faculty of Economics and Business, ECOBAS Research Center, Department of Business Organization and Marketing, Campus Vigo, University of Vigo, 36310 Vigo, Pontevedra, Spain
2. Faculty of Economics and Business, Department of Applied Economics, Campus Vigo, University of Vigo, 36310 Vigo, Pontevedra, Spain
3. School of Communication, Leadership and Marketing, Departement of Marketing, Kristiania University College, Postboks 1190 Sentrum, 0107 Oslo, Norway