https://www.socialeurope.eu/progressive-taxation-for-a-renewed-social-contract
https://www.consilium.europa.eu/en/press/press-releases/2023/03/22/eurogroup-president-donohoe-s-report-to-the-president-of-the-euro-summit-of-24-march-2023/
https://www.imf.org/external/pubs/ft/fandd/2021/12/pdf/Kimball.pdf
https://uk.finance.yahoo.com/news/britain-public-finances-worse-gambia-153245680.html