Immigrant locations and native residential preferences : emerging ghettos or new communities? / Jesús Fernández-Huertas Moraga (Universidad Carlos III de Madrid and IZA), Ada Ferrer-i-Carbonell (IAE, CSIC, Barcelona GSE and IZA), Albert Saiz (Massachusetts Institute of Technology and IZA) ; IZA Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, November 2017