https://www.diw.de/documents/publikationen/73/diw_01.c.578096.de/18-7-3.pdf
https://uk.finance.yahoo.com/news/britain-public-finances-worse-gambia-153245680.html
https://visegradinsight.eu/managing-expectations-future-of-europe/
https://files.taxfoundation.org/20211014170634/International-Tax-Competitiveness-Index-2021.pdf