So why do the libtards and obama continue to parrot the idea that is has decreased?
Because economic populism is the liberal platform these days.
http://www.thedailybeast.com/articles/2014/01/28/why-obama-can-t-solve-inequality.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+thedailybeast%2Farticles+%28The+Daily+Beast+-+Latest+Articles%29If there’s one dead-of-winter public spectacle even more soul-sapping and self-congratulatory than the Grammys —now taking its cues, however well-intentioned, from the late Rev. Sun Myung Moon by staging mass weddings —it’s the annual State of the Union address
If past pronouncements are any indication, the president will immediately—and erroneously—conflate growing income inequality with reduced economic mobility. As he said in a speech last December, “The problem is that alongside increased inequality, we’ve seen diminished levels of upward mobility in recent years.”
This is flatly wrong. Research published last week by economists at Harvard (Raj Chetty, Nathaniel Hendren) and Berkeley (Patrick Kline, Emmanuel Saez) concludes that rates of mobility among income quintiles have not in fact changed in decades. As the Washington Post summarized it, “Children growing up in America today are just as likely—no more, no less—to climb the economic ladder as children born more than a half-century ago, a team of economists reported Thursday.”