
http://www.businessforscotland.com/survey-scottish-business-loses-trust-uk-governments-brexit-negotiations/

https://theconversation.com/why-the-eus-singapore-ruling-does-not-lead-to-a-smoother-brexit-road-for-britain-78116

https://www.cesifo-group.de/DocDL/ifoDD_18-01_03-09_Ochsner.pdf