Born poor? You want to live where the middle class is

A new analysis of groundbreaking economic research suggests a strong link between the size of a region's middle class and the ability for its poor residents to climb the economic ladder.

By Jim Tankersley September 4, 2013

What is the middle class?

Under Obama and Romney's definition, only 4 percent of Americans AREN'T middle class.

By Dylan Matthews September 16, 2012