Sir Jacob Rees-Mogg, the former business secretary, said: “The OBR is an unelected quango with far too much control over government policy.
“It believes that mass migration has been an untrammelled boon for the economy.
“Yet if you look at the recent decline in GDP per capita it shows that the open-door project has failed to deliver anything but declining wages and living standards.”
He added: “Now is the time that the pseudo forecasts of the OBR were treated with the circumspection they deserve, rather than treating them as Holy Writ.”
‘Myth that economy needs mass immigration’
Marco Longhi, the Tory MP for Dudley North, said: “The fact that the OBR continues to over-inflate the value of open borders, believing that they’re a huge benefit to the economy, is a sad indictment of its forecasting capabilities.
“I hope that today’s findings go some way to dispelling the myth that the British economy cannot cope without net migration of hundreds of thousands each year.”
The OBR declined to comment on the CMC’s analysis.
Writing for The Telegraph last month, David Miles, an executive member of the OBR, said that getting more people back to work was a surer way of boosting GDP.
“It is much less clear that persistently high levels of net immigration to boost the labour force can generate sustained fiscal improvements,” he said.
