
https://www.socialeurope.eu/wp-content/uploads/2018/05/BP1-Devolution.pdf

https://blogs.lse.ac.uk/brexit/2021/02/04/indyref2-scottish-independence-would-be-2-3-times-more-costly-than-that-of-brexit-and-rejoining-the-eu-wouldnt-make-up-the-difference/

http://www.oxera.com/Latest-Thinking/Publications/Reports/2017/Brexit-ports.aspx