The concept of inequality is distinct from that of poverty and fairness. Income inequality metrics or income distribution metrics are used by social scientists to measure the distribution of income, and economic inequality among the participants in a particular economy, such as that of a specific country or of the world in general. While different theories may try to explain how income inequality comes about, income inequality metrics simply provide a system of measurement used to determine the dispersion of incomes.
Income distribution has always been a central concern of economic theory and economic policy. Classical economists such as Adam Smith, Thomas Malthus and David Ricardo were mainly concerned with factor income distribution, that is, the distribution of income between the main factors of production, land, labour and capital. It is often related to wealth distribution although separate factors influence wealth inequality.
Modern economists have also addressed this issue, but have been more concerned with the distribution of income across individuals and households. Important theoretical and policy concerns include the relationship between income inequality and economic growth. The article Economic inequality discusses the social and policy aspects of income distribution questions.
Read more about Income Inequality Metrics: Defining Income, Properties of Inequality Metrics, Common Income Inequality Metrics, Ratios, Spreadsheet Computations, Proper Use of Income Inequality Metrics, Inequality, Growth, and Progress
Famous quotes containing the words income and/or inequality:
“Italy is such a delightful place to live in if you happen to be a man. There one may enjoy that exquisite luxury of Socialism—that true Socialism which is based not on equality of income or character, but on the equality of manners. In the democracy of the caffè or the street the great question of our life has been solved, and the brotherhood of man is a reality. But it is accomplished at the expense of the sisterhood of women.”
—E.M. (Edward Morgan)
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—Henry David Thoreau (1817–1862)