[1] Univ Peloponnese, Dept Accounting & Finance, GR-24100 Antikalamos, Greece
[2] Univ Rovira i Virgili, ECO SOC, FEE, Avinguda Univ 1, Reus 43204, Spain
[3] IPAG Business Sch, 184 Blvd St Germain, F-75006 Paris, France
[4] Athens Univ Econ & Business, Dept Business Adm, 76 Patiss St, Athens 10434, Greece