gini index definition
If all people have non-negative income (or wealth, as the case may be), the Gini coefficient can theoretically range from 0 (complete equality) to 1 (complete inequality); it is sometimes expressed as a percentage ranging between 0 and 100. Less commonly, people also use it to measure wealth or consumption expenditure distribution. 5 > 0. The theoretical model of Gini coefficient is limited to accepting correct or incorrect subjective assumptions. Also called the Gini coefficient or index of concentration. It is most often used in economics to measure how far a country's wealth or income distribution deviates from a totally equal distribution. GINI index (World Bank estimate) World Bank, Development Research Group. The Gini Index is a summary measure of income inequality. Perfect equality—the absence of inequality—exists when and only when the inequality ratio, Gini coefficients of income are calculated on market income as well as disposable income basis.
The same analysis can be applied to wealth distribution (the "wealth Gini coefficient"), but because wealth is more difficult to measure than income, Gini coefficients usually refer to income and appear simply as "Gini coefficient" or "Gini index," without specifying that they refer to income.
A Gini index value of 30 or above is considered medium; countries including Vietnam, Mexico, the United States, Argentina, Russia, and Uruguay can be found in this category. If household data is used, the measured value of income Gini depends on how the household is defined.
Der Koeffizient ist eine Alternative zum S80/S20-Einkommensquintilverhältnis, das in der EU-Statistik Verwendung findet. These can be calculated using However it has since been argued that this is dependent on the model's assumptions about the error distributions (Ogwang 2004) and the independence of error terms (Reza & Gastwirth 2006) and that these assumptions are often not valid for real data sets. All information is provided on an as-is basis.We use cookies (necessary for website functioning) for analytics, to give you the in einem Land oder einer Region, nach dem häuslichen Pro-Kopf-Einkommen (1) an.
It is a value between 0 and 1. Data are based on primary household survey data obtained from government statistical agencies and World Bank country departments. For a random sample There does not exist a sample statistic that is in general an unbiased estimator of the population Gini coefficient, like the When the population is large, the income distribution may be represented by a continuous The Gini coefficient can also be calculated directly from the The Gini coefficient may be expressed in terms of the For some functional forms, the Gini index can be calculated explicitly. A node having multiple classes is impure whereas a node having only one class is pure. For five people, where four have no income and the fifth has all the income, the Gini coefficient is 0.8.
closing this banner, scrolling this page, clicking a link or continuing to use our site, you consent to our use Gini-Koeffizient verständlich & knapp definiert Der Gini-Koeffizient, auch als Gini-Index bezeichnet, sagt aus, wie ungleich das Einkommen in einer Region oder einem Land pro Kopf verteilt ist. Both gini and entropy are measures of impurity of a node.
A Lorenz curve plots the cumulative percentages of total income received against the cumulative number of recipients, starting with the … This is attributed to Gini coefficient is widely used in fields as diverse as sociology, economics, health science, ecology, engineering and agriculture.Education Gini index estimates the inequality in education for a given population.Similar in concept to income Gini coefficient, opportunity Gini coefficient measures inequality of opportunity.Shorrocks index is calculated in number of different ways, a common approach being from the ratio of income Gini coefficients between short-term and long-term for the same region or country.A 2010 study using social security income data for the United States since 1937 and Gini-based Shorrocks indices concludes that income mobility in the United States has had a complicated history, primarily due to mass influx of women into the American labor force after World War II. But how do we decide which attribute/feature should be placed at the root node, which features will act as internal nodes or leaf nodes?
GINI index (World Bank estimate) - Country Ranking.
The same value may result from many different distribution curves. If negative values are possible (such as the negative wealth of people with debts), then the Gini coefficient could theoretically be more than 1. For example, There is a summary measure of the diagnostic ability of a binary classifier system that is also called The Gini index is also related to Pietra index—both of which are a measure of statistical heterogeneity and are derived from Lorenz curve and the diagonal line.In certain fields such as ecology, inverse Simpson's index Although the Gini coefficient is most popular in economics, it can in theory be applied in any field of science that studies a distribution.
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