
https://blogs.lse.ac.uk/brexit/2021/05/17/brexit-is-a-political-ponzi-scheme/

https://www.global-counsel.co.uk/sites/default/files/special-reports/downloads/Global%20Counsel_Impact_of_Brexit.pdf

http://fedtrust.co.uk/views-from-the-federal-trust/free-movement-and-migration/