1. Department of Management, School of Business, Economics and Informatics, Birkbeck, University of London, Malet Street, London WC1E 7HX, UK
2. Department of Marketing & Business Strategy, Westminster Business School, University of Westminster, 35 Marylebone Road, London NW1 5LS, UK
3. School of Information Management, Victoria University of Wellington, Pipitea Campus, P.O. Box 600, Wellington 6011, New Zealand