https://static1.squarespace.com/static/5ef4d1da53822a571493ebd0/t/5ffcfaea93e2771243fce2ff/1610414842497/A-Wealth-Tax-For-The-UK.pdf
https://www.project-syndicate.org/commentary/eurozone-sustainable-economic-recovery-by-simon-johnson-2017-06
https://www.socialeurope.eu/2017/07/european-welfare-states-perform/