Full Fact:
EU facts behind the claims: economic costs and benefits
13 April 2016
…but economists think that leaving would come at some economic cost
The FT also reviewed three recently published studies, by the Centre for Economic Performance at the London School of Economics, Price Waterhouse Coopers for the CBI, and the consultancy Oxford Economics, which support this view.
All three use credible methodologies generally accepted by economists and researchers, in contrast to the estimates used by the campaigns, according to Mr Portes.