First Author:   Sven A. Hartmann Institute for Labour Law and Industrial Relations in the European Union (IAAEU) - Trier University hartmann@iaaeu.de   Behringstraße 21 Trier, 54296, Germany       svenhartmann.com Second Author: Clemens Buchen WHU - Otto Beisheim School of Management clemens.buchen@whu.edu         Third Author: Alberto Palermo Institute for Labour Law and Industrial Relations in the European Union (IAAEU) palermo@iaaeu.de