The Gini index, or Gini coefficient, is a summary measure of income inequality representing how income distribution varies compared with an equal outcome. States with the lowest Gini index figures, ...

Inequality among people has become an increasingly salient issue globally, with data indicating a rise in inequality levels across many countries in recent years. This, in turn, has generated concerns ...

Early morning magenta light illuminates clouds and the Moulton Barn on Mormon Row at the foot of the Grand Tetons near Jackson, Wyoming. Teton County, home to the affluent and famous Jackson Hole, has ...

People are living longer lives compared to previous generations but, over the last few decades, there has been a hidden shift – they are passing away at increasingly similar ages. This is a trend ...

I produced a short video on measuring inequality, focusing on the construction of the Gini index, the trend in US family inequality, and an example of using it to measure world inequality. It’s 15 ...

How an equation cooked up by Mussolini’s numbers guy came to define how we think about inequality—from Occupy Wall Street to the World Bank to the billionaires at Davos—and why it’s time to find a new ...

With reformers relentlessly demanding that schools produce measurable outcomes, it’s curious that the Gini Index is rarely mentioned. I say that because what Italian statistician Corrado Gini wrote in ...