The return of border checks across the 26 members of the Schengen passport-free travel zone would reduce GDP by 0.8%, according to the French Government

Zlata Rodionova Thursday 4 February 2016

http://www.independent.co.uk/news/business/news/border-controls-and-passport-checks-would-cost-europe-up-to-100bn-report-shows-a6853086.html