https://www.boeckler.de/pdf/p_imk_report_141e_2018.pdf
https://www.socialeurope.eu/shareholder-value-versus-the-public-good-the-case-of-germany
https://www.cesifo-group.de/DocDL/ifoDD_18-01_03-09_Ochsner.pdf
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1708en.pdf