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Field Listing ::
Country
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Field Listing :: Distribution of family income - Gini index
This index measures the degree of inequality in the distribution of
family income in a country. The index is calculated from the Lorenz
curve, in which cumulative family income is plotted against the
number of families arranged from the poorest to the richest. The
index is the ratio of (a) the area between a country's Lorenz curve
and the 45 degree helping line to (b) the entire triangular area
under the 45 degree line. The more nearly equal a country's income
distribution, the closer its Lorenz curve to the 45 degree line and
the lower its Gini index, e.g., a Scandinavian country with an index
of 25. The more unequal a country's income distribution, the farther
its Lorenz curve from the 45 degree line and the higher its Gini
index, e.g., a Sub-Saharan country with an index of 50. If income
were distributed with perfect equality, the Lorenz curve would
coincide with the 45 degree line and the index would be zero; if
income were distributed with perfect inequality, the Lorenz curve
would coincide with the horizontal axis and the right vertical axis
and the index would be 100.
Country Comparison to the World
Country
Distribution of family income - Gini index
Albania
26.7 (2005)