https://www.brookings.edu/blog/future-development/2018/01/08/a-new-years-resolution-to-address-wage-inequality-in-firms/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=59882754
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1729en.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/662744/State_of_the_Nation_2017_-_Social_Mobility_in_Great_Britain.pdf
http://library.fes.de/pdf-files/dialog/13464.pdf
https://euagenda.eu/upload/publications/untitled-111339-ea.pdf
http://researchbriefings.files.parliament.uk/documents/CBP-7484/CBP-7484.pdf
https://www.socialeurope.eu/marrying-labour-flexibility-protection
https://www.baua.de/DE/Angebote/Publikationen/Berichte/F2398.pdf?__blob=publicationFile&v=3
http://www.euronews.com/2017/09/28/posted-workers-facing-harsh-realities?utm_source=newsletter&utm_medium=en&utm_content=posted-workers-facing-harsh-realities&_ope=eyJndWlkIjoiZjU3Y2JhYmUwMGUxZDFiNTUxOTU1ZDljNzExNTI1MmEifQ==
https://www.socialeurope.eu/structural-reforms-labour-markets-impair-innovation