https://www.socialeurope.eu/2017/07/brexit-to-nowhere/
https://www.esri.ie/system/files/publications/SUSTAT117.pdf
https://blogs.lse.ac.uk/brexit/2020/10/22/the-cost-of-brexit-is-likely-to-be-more-than-double-that-of-covid-it-must-be-delayed/
https://www.britishcouncil.org/sites/default/files/the_value_of_trust.pdf