The Gini index, or Gini coefficient, is a summary measure of income inequality representing how income distribution varies compared with an equal outcome. States with the lowest Gini index figures ...

To construct the Gini coefficient, graph the cumulative percentage of households (from poor to rich) on the horizontal axis and the cumulative percentage of income (or expenditure) on the vertical ...

The Gini coefficient--an index that measures income inequality on a scale ranging between 0 and 1--rose to 0.5700 based on initial income, or before distribution through taxation and social ...