https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef19041en.pdf
https://www.fraserinstitute.org/studies/essential-women-of-liberty-deirdre-mccloskey
http://blogs.lse.ac.uk/brexit/2017/07/06/the-1bn-bung-wont-protect-northern-ireland-from-the-pain-of-a-hard-brexit/