[1] Univ Complutense Madrid, Inst Complutense Estudios Int, Madrid, Spain
[2] Univ Complutense Madrid, Dept Anal Econ & Econ Cuantitat, Madrid, Spain
[3] La Salle Univ, Distinguished Chair Business Analyt, Business Syst & Analyt Dept, Philadelphia, PA USA
[4] Univ Paderborn, Fac Business Adm & Econ, Business Informat Syst Dept, Paderborn, Germany
[5] Univ Trento, Dept Econ & Management, Trento, Italy