https://institute.global/news/brexit-what-we-now-know
https://www.socialeurope.eu/2017/06/the-case-for-an-investment-state/
https://uk.finance.yahoo.com/news/businesss-government-lobbying-brexit-isnt-working-heres-143415309.html
https://ukandeu.ac.uk/wp-content/uploads/2021/11/Brexit-and-Services-Trade-Working-Paper.pdf