The Rich/Poor Ratio

Gini Coefficient

Lorenz Curve

GCIP 2015: Global Consumption and Income Project

An economist is comparing two countries. Country A has a Gini coefficient of 0.28 and a rich/poor ratio of 5 (meaning the richest 10% of the population earn, on average, 5 times more than the poorest 10%). Country B has a Gini coefficient of 0.52 and a rich/poor ratio of 20. Based on these two common statistical tools for summarizing income distribution, what is the most accurate conclusion?

Analyzing Contradictory Inequality Measures

Interpreting Divergent Inequality Measures

Evaluating Intervention in Emerging Technology Standards

Match each measure of societal income inequality with its corresponding description.

Evaluating Single-Number Inequality Measures

An individual must choose between two scenarios that determine a monetary prize for themselves and for another person. If this individual's personal satisfaction is strongly reduced by the good fortune of others, which scenario are they most likely to choose?

• Scenario A: The individual receives $100; the other person receives $500.
• Scenario B: The individual receives $90; the other person receives $50.

Comparing Inequality Measures

A government is launching a new program specifically designed to raise the incomes of the poorest 10% of its citizens. To track the direct impact of this targeted program, policymakers need to select the most sensitive statistical measure. Which of the following would be the most appropriate and direct indicator for assessing the success of this specific policy?

Prevalence of Gini and Rich/Poor Ratio as Inequality Metrics

Over a ten-year period, a country's Gini coefficient decreased from 0.45 to 0.35. Which of the following events provides the most plausible explanation for this change in the income distribution?