http://www.lawsociety.org.uk/news/stories/leaving-in-an-orderly-fashion-our-approach-to-brexit/
http://www.rug.nl/research/portal/files/41711829/cesifo1_wp6448.pdf
https://ormosi.wordpress.com/2017/06/06/brexit-uncertainty-fewer-mergers-big-business-winners/#more-566