
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/

https://ukandeu.ac.uk/wp-content/uploads/2020/06/Mind-the-values-gap.pdf

https://publications.parliament.uk/pa/bills/cbill/58-03/0204/220204.pdf