The House of Lords Economic Affairs Committee says immigration is of little or no benefit to the UK, helping employers and the immigrants themselves but disadvantaging other groups in society, including the low paid and young workers. The big question will be whether an assessment of this kind can ever pick up on dynamic as well as static effects, or properly answer the "as if" question on what would have happened to the UK economy in the absence of immigration. Neither the government's figure of a £6 billion GDP boost, or the committee's assessment that there is no increase in GDP per capita, capture this.

Given the amount of coverage it is interesting that the report is not published yet. It will be available here. In the meantime, here is a BBC report.