The percentage of Americans who say they are in the lower-middle or lower class has risen from a quarter of the adult population to about a third in the past four years, according to a national survey of 2,508 adults by the Pew Research Center.
Not only has the lower class grown, but its demographic profile also has shifted. People younger than 30 are disproportionately swelling the ranks of the self-defined lower classes. [cont.]
Rich Morin and Seth Motel, Pew