The number of migrants worldwide according to the latest United Nations estimate remains a small minority of the total population.

The number of migrants worldwide according to the latest United Nations estimate remains a small minority of the total population.

Photographer: Paulo Nunes dos Santos/Bloomberg

What Migration Is Really Doing to Politics and Economies Worldwide

US voters increasingly cite migration as their chief concern. But these case studies from five continents show that governments everywhere are struggling to find solutions — with some even stoking the problem.  

In a year of elections, populist leaders from Europe to the Americas are pushing a narrative that migration is out of control.

Yet for all the hysteria, the number of international migrants worldwide according to the latest United Nations estimate remains a small minority of the total population. Movement within national borders is still “overwhelmingly the norm,” it says.