https://www.gov.uk/government/speeches/eu-speech-at-bloomberg
https://bdi.eu/media/user_upload/20171005_Pressemitteilung_Brexit.pdf
https://blogs.lse.ac.uk/brexit/2019/10/15/the-curve-of-inequality-and-the-brexit-way/
http://cep.lse.ac.uk/pubs/download/brexit11.pdf