Introduction to "Competition in the Promised Land: Black Migrants in Northern Cities and Labor Markets"

Leah Platt Boustan, Competition in the Promised Land: Black Migrants in Northern Cities and Labor Markets (Princeton University Press, 2016), https://www.nber.org/books-and-chapters/competition-promised-land-black-migrants-northern-cities-and-labor-markets/introduction-competition-promised-land-black-migrants-northern-cities-and-labor-markets.