Economic Definition of Gini index. Defined.
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Term Gini index Definition: One of the most common measures of income or wealth distributions. It indicates how equal, or unequal, income, wealth, or similar stuff is distributed among the population. If you happen to come across a Gini index, you'll see that it falls in the range of 0 to 1. A value of 0 tells you that the distribution is perfectly equal, that is, everyone has exactly the same amount of income, wealth, or whatever. A value of 1, however, tells you that the distribution is what we could call perfectly unequal, that is, one person has everything and everyone else has nothing.