[1] Hanken Sch Econ, Arkadiankatu 22, Helsinki 00101, Finland
[2] Univ Sussex, Business Sch, Sussex House, Brighton BN1 9RH, England
[3] Prague Univ Econ & Business, Fac Finance & Accounting, Prague, Czech Republic
[4] Aalto Univ, Sch Business, Ekonominaukio 1, Aalto 00076, Finland