
http://www.resolutionfoundation.org/app/uploads/2017/10/Changing-Lanes-3.pdf

https://blogs.lse.ac.uk/brexit/2019/12/03/a-missed-opportunity-revisiting-the-euro-referendum-that-never-was-from-a-historical-perspective/

https://www.socialeurope.eu/brexit-status-quo-ex-ante