[1] Temple Univ, Fox Sch Business & Management, Philadelphia, PA 19122 USA
[2] Rutgers State Univ, Sch Management & Labor Relat, Piscataway, NJ USA
[3] Lorange Inst Business Zurich, Horgen, Switzerland
[4] Griffith Univ, Griffith Business Sch, Brisbane, Qld 4111, Australia