https://www.taxobservatory.eu//www-site/uploads/2023/10/global_tax_evasion_report_24.pdf
http://cep.lse.ac.uk/pubs/download/brexit11.pdf
https://www.bruegel.org/2021/04/setting-europes-economic-recovery-in-motion-a-first-look-at-national-plans/
https://reformscotland.com/wp-content/uploads/2018/04/The-VAT-opportunity.pdf