Gini coefficient 基尼系数
(重定向自Gini Index)
The Gini coefficient (also known as the Gini index or Gini ratio) ( jee-nee) is a measure of statistical dispersion intended to represent the income distribution of a nation's residents, and is the most commonly used measure of inequality. It was developed by the Italian statistician and sociologist Corrado Gini and published in his 1912 paper Variability and Mutability (Italian:Variabilità e mutabilità).