https://www.socialeurope.eu/progressive-taxation-for-a-renewed-social-contract
https://www.ecb.europa.eu/press/key/date/2021/html/ecb.sp210226~ff6ad267d4.en.html
https://static1.squarespace.com/static/5ef4d1da53822a571493ebd0/t/5ffcfaea93e2771243fce2ff/1610414842497/A-Wealth-Tax-For-The-UK.pdf
https://onlinelibrary.wiley.com/doi/10.1111/ecaf.12565