[1] Univ Vaasa, Fac Business Studies, Dept Mkt, Wolffintie 34, FI-65200 Vaasa, Finland
[2] Hanken Sch Econ, Dept Mkt, Kauppapuistikko 16, FI-65100 Vaasa, Finland
[3] Hanken Sch Econ, Arkadiankatu 22, FI-00100 Helsinki, Finland
[4] Int Univ Monaco, INSEEC Res Ctr, 2 Ave Albert 2, MC-98000 Monaco, Monaco