If you turn on CNN or MSNBC you will hear constant reference to "increasing income inequality". If this were true and not just propaganda, you'd expect real data to support that claim. Yet it doesn't. The level of income inequality in the United states hasn't changed in the last 25 years. So, if this wasn't keeping you up at night in 1998, why is it in 2019?
The Gini index, or Gini ratio, is a measure of statistical dispersion intended to represent the income or wealth distribution of a nation's residents, and is the most commonly used measurement of inequality. It was developed by the Italian statistician and sociologist Corrado Gini.
A Gini coefficient of zero expresses perfect equality, where all values are the same (for example, where everyone has the same income). A Gini coefficient of 1 (or 100%) expresses maximal inequality among values .
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