https://www.brookings.edu/wp-content/uploads/2018/07/Moulton-report-v2.pdf
https://www.cesifo-group.de/DocDL/ifoDD_18-01_29-31_Achten.pdf
https://socialeurope.eu/taming-the-big-tech-tiger
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/fomeef18002en.pdf