What have the immigrants ever done for us?

PESKY immigrants. They move to Britain, taking jobs, scrounging welfare benefits, straining health services, overrunning local schools and occupying state-subsidised housing. That, at least, is the story recounted by politicians from the UK Independence Party (UKIP) and, increasingly, by members of the Conservative Party. A new study by two economists tells a very different tale.

Concern about the economic impact of immigration has centred on two areas: the effect foreigners have on native workers’ wages and employment; and the extent to which immigrants, in particular those from countries within the European Union who are free to move around at will, take from a system to which they have contributed little. Research by Christian Dustmann of University College London and Tommaso Frattini of the University of Milan focuses on the second.