https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:52020DC0562&from=EN
https://www.bruegel.org/sites/default/files/2023-09/PB%2018%202023_1.pdf
https://docs.iza.org/pp197.pdf
https://www.theccc.org.uk/publication/2021-progress-report-to-parliament/