What does the Gini coefficient mean?
The Gini coefficient (named after the Italian statistician Corrado Gini) is the most commonly used measure of income inequality. It calculates the extent to which the distribution of income among individuals within a country deviates from a perfectly equal distribution. A Gini coefficient of 0 represents perfect equality (that is, every person in the society has the same amount of income); a Gini coefficient of 100 represents perfect inequality (that is, one person has all the income and the rest of the society has none).
