hope you don't mind, geezer;
Old_Geezer
I would also like to say I disbelieve that the UK gains £20bn from European migrants. Given that any immigrant paying tax must be doing so because they have a job here that otherwise could have been given to a native, who would then have paid the same tax, there is a net gain of zero. In addition, the fact that the native who could have had the job now remains on welfare means that there is a net expense to the taxpayer.
I suspect UCL economists are not considering the larger picture, and consequently missing vital calculations. If this is so, then it makes me ponder on why they are given the job if they come up with erroneous conclusions and then try to fool us all with them. But ignoring the larger picture in order to convince folk up is down, and in is out, seems a common practice from 'authorities' these days//