Although integrating refugees and migrants has become a key policy priority in many countries, integration is rarely defined explicitly. But there are several indicators that can be used to gauge success.
Those opposed to immigration often contend that immigrants are slow to assimilate. This column takes a longer-term view of assimilation by looking at the degree of ethnic spatial segregation in the US during and after the Age of Mass Migration. New methods and newly digitised data suggest that segregation in the US between 1850 and 1940 was both higher and more widespread than previously thought. However, despite slow rates of spatial assimilation, immigrants tend to assimilate culturally at a fast rate.
Katherine Eriksson, Zach Ward