Professor Markus Helfen has recently 2022 published an article on "Meta-organizing Employers: From Beneficial Constraints to Collective Self-discipline?" in the volume "Contemporary employers' organizations. Adaptation and resilience." edited by L. Gooberman & M. Hauptmeier. The book is published by Routledge: New York. 

The article can be accessed at https://www.taylorfrancis.com/chapters/edit/10.4324/9781003104575-4/meta-organizing-employers-beneficial-constraints-collective-self-discipline-markus-helfen