What is the Gini coefficient PDF?
What is the Gini coefficient PDF?
The Gini index is a summary statistic that measures how equitably a resource is distributed in a population; income is a primary example. The Gini index is twice the area between the Lorenz curve and the curve of perfect equitability. For U.S. family income in 2006, the data leads to an estimate of G ≈ .
How do you calculate Gini coefficient from Quintiles?
The Gini coefficient is calculated as a ratio of the areas on the Lorenz curve diagram (see figure below). If the area between the line of perfect equality and Lorenz curve is A, and the area underneath the Lorenz curve is B, then the Gini coefficient is A/(A+B).
How do you calculate Gini index?
According to Gini (2005), the Gini index can be calculated as the ratio of the area between the perfect equality line and the Lorenz curve (A) divided by the total area under the perfect equality line (A + B). The Gini index takes values in the unit interval.
How do I calculate Gini coefficient?
The Gini coefficient can be calculated using the formula: Gini Coefficient = A / (A + B), where A is the area above the Lorenz Curve and B is the area below the Lorenz Curve.
What is meant by Gini coefficient?
The Gini index, or Gini coefficient, is a measure of the distribution of income across a population developed by the Italian statistician Corrado Gini in 1912. The coefficient ranges from 0 (or 0%) to 1 (or 100%), with 0 representing perfect equality and 1 representing perfect inequality.
What is the Gini coefficient and how is it calculated?
The Gini coefficient is calculated as the area of A divided by the area of A+B. As the area of A decreases then the curve which plots the distribution of wealth (we can call this the Lorenz curve) approaches the line y = x. This is the line which represents perfect equality.
What is the Gini index?
It is also known as the Gini ratio or Gini index. It is a value between 0 and 1. A higher number indicates a greater degree of income inequality. A value of 1 indicates the highest degree of income inequality where a single individual earns the entire income of the country.
What is the Gini coefficient of behavioural behaviour?
Behaviour scorecards have values of 70-80%. A very powerful characteristic can have a Gini coefficient of 25%. To calculate Gini values, assume that one has good and bad accounts rank ordered by score with the score sufficiently finely graded such as that there is only one case per score.
Is Thailand’s Gini coefficient underestimated or underestimated?
The actual World Bank calculation for Thailand’s Gini coefficient in 2002 was 0.42 – so we have slightly underestimated the inequality in Thailand. We would get a more accurate estimate by taking more data points, or by fitting a curve through our plotted points and then integrating.
