[1] Univ Coll Ghent, Fac Business Adm & Publ Adm, Dept Management, Ghent, Belgium
[2] Univ Coll Ghent, Fac Business Adm & Publ Adm, ICT, Ghent, Belgium
[3] Univ Ghent, Fac Econ & Business Adm, Dept Management Informat Sci & Operat Management, B-9000 Ghent, Belgium
[4] Univ Antwerp, Fac Appl Econ, Dept Management Informat Syst, B-2020 Antwerp, Belgium
[5] Katholieke Univ Leuven, Fac Business & Econ, Dept Management Informat, Louvain, Belgium