The extent of and continuing increase in inequality in the United States greatly concern me

YELLEN Janet L., Chair Federal Reserve Board
The extent of and continuing increase in inequality in the United States greatly concern me
"The past several decades have seen the most sustained rise in inequality since the 19th century after more than 40 years of narrowing inequality following the Great Depression. (...) The distribution of wealth is even more unequal than that of income, and the SCF shows that wealth inequality has increased more than income inequality since 1989. The wealthiest 5 percent of American households held 54 percent of all wealth reported in the 1989 survey. Their share rose to 61 percent in 2010 and reached 63 percent in 2013." ...
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In fact, Yellen follows the findings of Thomas Piketty. Let's see where this brings us and the US ...

YELLEN Janet L., Chair Federal Reserve Board@ wikipedia