https://www.hesa.ac.uk/data-and-analysis/publications/finances-2015-16/introduction
https://docs.house.gov/meetings/JU/JU05/20220517/114776/HHRG-117-JU05-Wstate-LynnB-20220517.pdf
https://www.aspistrategist.org.au/the-eu-needs-fiscal-union/
https://www.socialeurope.eu/reform-of-eu-fiscal-rules-more-ambition-needed