POLD89H3 Lecture Notes - Least Developed Countries, United Nations Millennium Declaration, Lorenz Curve

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Income of a country divided by number of people living in it. How much would one person get had the income been divided equally: purchasing power parity (ppp, ppps are currency conversion rates that both convert to a common currency and equalise the purchasing power of different currencies. In other words, they eliminate the differences in price levels between countries in the process of conversion: gini coefficients (world bank explanation, gini-coefficient of inequality: this is the most commonly used measure of inequality. The coefficient varies between 0, which reflects complete equality and 1, which indicates complete inequality (one person has all the income or consumption, all others have none). Graphically, the gini coefficient can be easily represented by the area between the lorenz curve and the line of equality. In this figure, the lorenz curve maps the cumulative income share on the vertical axis against the distribution of the population on the horizontal axis.

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