https://www.thetimes.co.uk/edition/news/irish-want-sea-border-with-uk-after-brexit-lvb6n35fq
https://www.bloomberg.com/news/articles/2017-08-25/brexit-bulletin-when-silence-isn-t-golden
https://www.ifs.org.uk/publications/10302
https://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.34.2.172