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Poverty rate is defined as the proportion of the poor population to the total population.
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The closer the Gini coefficient is to 1, the more unequal it is.
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The Lorentz curve is divided into a horizontal axis and a vertical axis.
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On the horizontal axis, the proportions are accumulated and displayed in the order of
the lowest income population.
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The vertical axis shows the cumulative percentage of each population's income level.
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After that, the Lorentz curve represents the corresponding point.
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In the tenth quartile distribution ratio, the larger the number, the more equal.
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In the quintile distribution ratio, the smaller the number, the more equal.
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