1. University of Piemonte Orientale ‘A. Avogadro’, Department of Economics and Business, Via Perrone 18, 28100 Novara, Italy
2. Faculty of Management, Bournemouth University, Fern Barrow, Talbot Campus, Poole, Dorset BH12 5BB, UK
3. Department of Business Administration and Marketing, Universitat Jaume I, Av De Vincent Sos Baynat s/n, 12071 Castello' de la Plana, Spain
4. Faculty of Economics and Business, Universitat de Barcelona, Av Diagonal 690, 08034 Barcelona, Spain