Xenophobia is bad economics: Five reasons why Britain should welcome immigration
"Since hostility to immigration is pushing Britain towards the exit door, it is likely that the UK would restrict immigration from the EU upon exit. This would require Britain to increase taxes or cut spending," it added.
The report also pointed out that at least 1.4 million British people currently live in other European countries, free to come and go as they please. Changing the terms of our immigration policy could force them to return to the UK.