This is a list of countries and territories by income inequality metrics, as calculated by the World Bank, UNU-WIDER, OCDE, and World Inequality Database, based on different indicators, like the Gini coefficient and specific income ratios. Income from black market economic activity is not included.
The Gini coefficient is a number between 0 and 100, where 0 represents perfect equality (everyone has the same income). Meanwhile, an index of 100 implies perfect inequality (one person has all the income, and everyone else has no income).