Canada, Australia and the UK have topped a list of countries where the public has a favourable opinion of immigrants and view newcomers as a "strength" rather than a burden.

Comparing data from Eurostat and the American Councils of International Education, Pew found that on average 92% of children in Europe study a foreign language in their education, compared to only 20% across the US.

A record number of international graduates of US institutions were authorised to work in the country through the Optional Practical Training program in 2017, but growth has "slowed dramatically" according to a Pew Research Center analysis.