![](https://www.cer.eu/sites/default/files/styles/spotlight/public/ref_start_ukyellow_sl.jpg?itok=2jNeiT38)
The referendum campaign: The Battle of Evermore
A host of studies in Britain - by the Treasury, the Institute of Fiscal Studies, Oxford Economics, PricewaterhouseCoopers, the Centre for European Reform and the Centre for Economic Performance at the London School of Economics - agree with international bodies - the IMF and the OECD rich-country think-tank - that Brexit would mean less trade, lower foreign direct investment and slower productivity growth.