Mass migration pushes down wages.
UK research suggests that immigration has a small impact on average wages of existing workers but more significant effects for certain groups: low-wage workers lose while medium and high-paid workers gain.
“We must not have uncontrolled mass migration because it pushes down wages."
Steven Woolfe MEP, 29 September 2016
Research suggests that immigration has a small impact on the average wages of existing workers, but certain groups of people are affected differently. For example, low-wage workers lose out while medium and high-paid workers gain.
The group most likely to see a reduction in wages because of immigration to an area are resident workers who were originally migrants themselves.
If an area sees a 10% increase in the proportion of immigrants working in semi-skilled or unskilled service jobs, average wages in those sectors decrease by around 2%, according to one particular study by the Bank of England.
But between 2004/06 and 2012/14 the ratio of foreign born to UK born workers across the whole of the UK only rose by 8% in low-skilled and semi-skilled service jobs, so this is a relatively small effect. Other sectors looked at in the report saw smaller increases.
This factcheck is part of a roundup of BBC Question Time. Read the roundup.