
http://english.bdi.eu/#/article/news/robust-economy-no-cause-for-complacency/

https://cepr.org/sites/default/files/policy_insights/PolicyInsight91.pdf

http://www.cesifo-group.de/portal/page/portal/DocBase_Service/studien/Studie-2017-Felbermayr-etal-Brexit-79843.pdf