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Income inequality in the United States

The distribution of income in the United States has been the subject of study by scholars and institutions.

Data from a number of sources indicate that income inequality has grown significantly since the early 1970s, after several decades of stability.

While inequality has risen among most developed countries, and especially English-speaking ones, it is highest in the United States.

Studies indicate the source of the widening gap (sometimes called the Great Divergence) has been between the middle class and top earners, with the disparity becoming more extreme the further one goes up in the income distribution.

Upward redistribution of income is responsible for about 43% of the projected Social Security shortfall over the next 75 years.

The Brookings Institution said in 2013 that income inequality was increasing and becoming permanent, reducing social mobility in the US.

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