Or at least it will shortly:
http://www.theguardian.com/business/2015/jan/19/global-wealth-oxfam-inequality-davos-economic-summit-switzerlandThe study also says that the world's 80 wealthiest people own more than the poorest 50% of the world.The study points to the increase of inherited wealth (over a third of the Forbes-listed billionaires inherited) with recipients using their wealth to lobby for further advantage, e.g. $550M used to lobby Washington and EU bureaucrats in 2013.
Karl Marx may have been wrong about the timing of wealth concentration, but these levels are heading back to 19th century levels that resulted in sudden vigorous change, usually involving the 1% being "assisted" to share the wealth.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1