Today, thanks to the ease of technology and travel, we enjoy unprecendented levels of interconnectedness. Societies are increasingly mobile, and immigrant populations maintain strong ties with their native countries, allowing for an unbroken chain of innovation and knowledge that stretches all...

Substantial immigrant segregation in the United States, combined with the increase in the share of the U.S. foreign-born population, have led to great interest in the causes and consequences of immigrant concentration, including those related to the functioning of labor markets. This paper...