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A graph showing the degree of inequality in income and wealth in a given population or an economy. It is a rigorous way to measure income inequality. In this method (for example), personal incomes in an economy are arranged in increasing order; the cumulative share of total income is then plotted against the cumulative share of the population. The curve’s slope is thus proportional to per capita income at each point of the population distribution. In the case of complete equality of income, the lorenz curve will be a straight line and with greater curvature the inequality rises proportionally–the Gini Coefficient measures this inequality.