https://cepr.org/sites/default/files/policy_insights/PolicyInsight98.pdf
https://www.kingsfund.org.uk/publications/spending-and-availability-health-care-resources
https://www.bertelsmann-stiftung.de/de/themen/aktuelle-meldungen/2025/juli/kommunale-finanzen-groesstes-defizit-in-der-geschichte-der-bundesrepublik
https://www.courthousenews.com/eu-must-act-quickly-to-catch-up-to-us-warns-report-author/