https://www.rand.org/pubs/research_reports/RR2200.html
http://www.cesifo-group.de/portal/page/portal/DocBase_Service/studien/Studie-2017-Felbermayr-etal-Brexit-79843.pdf
http://docs.dpaq.de/10395-0216-euco-conclusions.pdf
https://theconversation.com/is-eu-regulation-really-so-bad-for-the-uk-83193