http://docs.dpaq.de/10395-0216-euco-conclusions.pdf
http://carnegieeurope.eu/2017/06/15/bringing-brexit-back-to-reality-pub-71262
http://www.oecd.org/eco/outlook/economic-forecast-summary-united-kingdom-oecd-economic-outlook-june-2017.pdf
https://www.esri.ie/system/files/publications/WP677_0.pdf