https://uk.finance.yahoo.com/news/britain-public-finances-worse-gambia-153245680.html
http://www.ebrd.com/news/events/ebrd-transition-report-201718.html
https://files.taxfoundation.org/20211014170634/International-Tax-Competitiveness-Index-2021.pdf
https://www.socialeurope.eu/progressive-taxation-for-a-renewed-social-contract