http://www.bloomberg.com/news/articles/2015-12-10/here-s-how-much-the-u-s-middle-class-has-changed-in-45-years
They're now outnumbered by the richest and poorest...In the age of rising income inequality, the task of preserving Americas middle class has been taken on by politicians across the ideological spectrum. A new report from Pew Research Center shows just how much the economic fortunes of this group have changed since the 1970s.
In every decade since then, the percentage of adults living in middle-income households has fallen, according to Pew, which is based in Washington. The share now stands at 50 percent, compared with 61 percent in 1971.
This matters because the "state of the American middle class is at the heart of the economic platforms of many presidential candidates ahead of the 2016 election," Pew researchers Rakesh Kochhar and Richard Fry wrote in their report. Meanwhile "a flurry of new research points to the potential of a larger middle class to provide the economic boost sought by many advanced economies."
Pew defines a middle-class household as one having income that is two-thirds to double that of the overall median household income. A family of three, for instance, would need to have a minimum income of $41,869 to qualify as middle-income...



