https://reformscotland.com/wp-content/uploads/2018/04/The-VAT-opportunity.pdf
https://wiiw.ac.at/oeffentliche-investitionen-und-sozialstaat-perspektiven-der-budgetpolitik-im-kontext-von-energiekrise-klimawandel-und-eu-budgetregeln-dlp-6484.pdf
https://blogs.lse.ac.uk/brexit/2019/12/03/a-missed-opportunity-revisiting-the-euro-referendum-that-never-was-from-a-historical-perspective/
https://www.brookings.edu/opinions/the-approaching-debt-wave/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=82830565