In Bloomberg's New York, The Poor Move Further Out, Lengthening Commutes

... well-paying jobs in Manhattan has occurred in Manhattan itself - and in places like Williamsburg and Greenpoint, Downtown and Brownstone Brooklyn. That development has pushed some New Yorkers of limited means to neighborhoods further from Manhattan, ...

http://www.wnyc.org/blogs/transportation-nation/2013/jul/10/bloombergs-transportation-legacy-longer-commutes-non-wealthy/