From Sam Fleming and Shawn Donnan writing at the Financial Times:

America’s middle class has shrunk to just half the population for the first time in at least four decades as the forces of technological change and globalisation drive a wedge between the winners and losers in a splintering US society.

The ranks of the middle class are now narrowly outnumbered by those in lower and upper income strata combined for the first time since at least the early 1970s, according to the definitions by the Pew Research Center, a non-partisan think-tank in research shared with the Financial Times.

The findings come amid an intensifying debate leading up to next year’s presidential election over how to revive the fortunes of the US middle class.

Read the rest of the story at the Financial Times.