Immigrant paradox in the United States
The immigrant paradox in the United States is an observation that recent immigrants often outperform more established immigrants and non-immigrants on a number of health-, education-, and conduct- or crime-related outcomes, despite the numerous barriers they face to successful social integration. According to the UN, the number of first-generation immigrants worldwide is 244 million.
Source: Wikipedia — Immigrant paradox in the United States (CC BY-SA 4.0)