[1] Univ Peloponnese, Dept Accounting & Finance, GR-24100 Antikalamos, Greece
[2] Pante Univ, Dept Commun Media & Culture, Athens, Greece
[3] Univ Piraeus, Dept Maritime Studies, M Karaoli & A Dimitriou St 80, Piraeus 18534, Greece
[4] Univ Cardiff, Cardiff Business Sch, Aberconway Bldg, Colum Dr, Cardiff CF10 3EU, Wales