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This is a list of countries or dependencies by income inequality metrics, including Gini coefficients. The Gini coefficient is a number between 0 and 1, where 0 corresponds with perfect equality (where everyone has the same income) and 1 corresponds with perfect inequality (where one person has all the income—and everyone else has no income).
Income distribution can vary greatly from wealth distribution in a country (see List of countries by wealth inequality). Income from black market economic activity is not included and is the subject of current economic research.[2][3]