Which statement best describes the Gini coefficient and its limitations?

Which statement best describes the Gini coefficient and its limitations?

• A. The Gini coefficient is a measure of absolute poverty rates.
• B. The Gini coefficient ranges from 0 to 10.
• C. The Gini coefficient measures average income across the population directly.
• D. The Gini coefficient ranges from 0 (perfect equality) to 1 (perfect inequality); limitations include not capturing poverty depth, regional disparities, or distribution across groups; sensitive to inequality at different parts of the distribution.

Answer: (D)

The Gini coefficient measures how evenly income is distributed across a population, not how many people are poor or how deep poverty is. It is scaled from 0 to 1, where 0 means perfect equality and 1 means maximum inequality (often interpreted as one person holding all the income). This makes it a concise summary of dispersion, but it also brings limitations: it doesn’t reveal poverty depth, regional disparities, or differences across subgroups, and its value can be influenced by where in the distribution inequality occurs (gains or losses among the very rich or the very poor can shift the index in different ways). So the best description is that it ranges from 0 (perfect equality) to 1 (perfect inequality), with limitations including not capturing poverty depth, regional disparities, or distribution across groups, and being sensitive to how inequality is distributed across parts of the population.

The Gini coefficient measures how evenly income is distributed across a population, not how many people are poor or how deep poverty is. It is scaled from 0 to 1, where 0 means perfect equality and 1 means maximum inequality (often interpreted as one person holding all the income). This makes it a concise summary of dispersion, but it also brings limitations: it doesn’t reveal poverty depth, regional disparities, or differences across subgroups, and its value can be influenced by where in the distribution inequality occurs (gains or losses among the very rich or the very poor can shift the index in different ways). So the best description is that it ranges from 0 (perfect equality) to 1 (perfect inequality), with limitations including not capturing poverty depth, regional disparities, or distribution across groups, and being sensitive to how inequality is distributed across parts of the population.