Income inequality is usually measured by a country's Gini coefficient, in which 0 is perfect equality (everyone has the same income) and 1 is perfect inequality (ie, one household takes everything).

收入不平等通常根据一国的基尼系数(Gini coefficient)[2]来衡量。基尼系数为0时表示完全平等(人人都收入相同)，为1时表示完全不平等(也就是说，某一家庭占有了全部东西)。

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And, most sobering, Mr. Mamet writes in "The Secret Knowledge, " there are no perfect solutions to inequality, only trade-offs.

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In the Gini measurement, zero means perfect equality and 1 means total inequality.

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The Gini index ranges from 0, which represents perfect equality, to 1, for absolute inequality.

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