[1] Univ Vienna, Sch Business Econ & Stat, Dept Stat & Operat Res, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[2] Univ Vienna, Sch Business Econ & Stat, Vienna Ctr Operat Res, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[3] Univ Vienna, Sch Business Econ & Stat, Dept Prod & Logist, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[4] Univ Vienna, Sch Business Econ & Stat, Dept Prod & Operat Management Int Focus, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[5] Karl Franzens Univ Graz, Dept Stat & Operat Res, Univ Str 15-E3, A-8010 Graz, Austria
[6] Univ Vienna, Sch Business Econ & Stat, Dept Innovat & Technol Management, Oskar Morgenstern Pl 1, A-1090 Vienna, Austria
[7] Bielefeld Univ, Dept Business Adm & Econ, Univ Str 25, D-33615 Bielefeld, Germany
[8] Vienna Univ Technol, Inst Stat & Math Methods Econ, Res Unit Operat Res & Control Syst, Wiedner Hauptstr 8-E105-4, A-1040 Vienna, Austria
[9] WU Vienna Univ Econ & Business, Inst Transport & Logist Management, Welthandelspl 1, A-1020 Vienna, Austria