1. Consumer Research Center, University of Helsinki, Helsinki, Finland
2. Faculty of Social Sciences and Business Studies, Business School, University of Eastern Finland, Joensuu, Finland
3. Department of Economics and Management, Department of Forest Sciences, University of Helsinki, Helsinki, Finland
4. Department of Information and Service Management, Aalto University School of Business, Aalto, Finland
5. Faculty of Information Technology, University of Jyväskylä, Finland