https://www.brookings.edu/wp-content/uploads/2017/05/more-professionalism-less-populism.pdf
https://www.project-syndicate.org/commentary/brexit-in-reverse-by-george-soros-2017-06?utm_source=Project+Syndicate+Newsletter&utm_campaign=2200ecc304-sunday_newsletter_25_6_2017&utm_medium=email&utm_term=0_73bad5b7d8-2200ecc304-105765449
https://www.nber.org/system/files/working_papers/w32002/w32002.pdf
https://ec.europa.eu/anti-fraud/sites/antifraud/files/olaf_report_2016_en.pdf