White flight
The resulting low-density development has been given the pejorative label urban sprawl. This is changing, however. White flight is reversing, with many Yuppies and upper-middle-class, empty nest Baby Boomers returning to urban living, usually in condominia, such as in New York City's Lower East Side, and Chicago's South Loop. The result has been the displacement of many poorer, inner-city residents. (see gentrification).