How does World Bank calculate Gini index?
The Gini index measures the area between the Lorenz curve and a hypothetical line of absolute equality, expressed as a percentage of the maximum area under the line. Thus a Gini index of 0 represents perfect equality, while an index of 100 implies perfect inequality. World Bank, Development Research Group.
How do you calculate Gini examples?
The Gini coefficient is equal to the area below the line of perfect equality (0.5 by definition) minus the area below the Lorenz curve, divided by the area below the line of perfect equality. In other words, it is double the area between the Lorenz curve and the line of perfect equality.
Which country has the best Gini index?
The countries with the highest Gini coefficients are:
- South Africa – 63.0.
- Namibia – 59.1.
- Zambia – 57.1.
- Sao Tome and Principe – 56.3.
- Eswatini – 54.6.
- Mozambique – 54.0.
- Brazil – 53.9.
- Hong Kong – 53.9.
Who has the lowest Gini index?
Slovenia
The Gini coefficient was proposed by Gini as a measure of inequality of income or wealth. For OECD countries, in the late 20th century, considering the effect of taxes and transfer payments, the income Gini coefficient ranged between 0.24 and 0.49, with Slovenia being the lowest and Mexico the highest.
Where does World Bank get Gini index data?
GINI index (World Bank estimate) World Bank, Development Research Group. Data are based on primary household survey data obtained from government statistical agencies and World Bank country departments.
What does a higher Gini index mean for inequality?
A higher Gini index indicates higher inequality. Note: Shown is the World Bank (Povcal) inequality data. This data includes both income and consumption measures and comparability across countries is therefore limited. How much economic growth is necessary to reduce global poverty substantially?
How to calculate Gini index for open interest?
Weighted sum of the Gini Indices can be calculated as follows: Gini Index for Past Trend = (6/10) 0.45 + (4/10) 0 = 0.27 Gini index = 1 – ( (2/4)^2 + (2/4)^2) = 0.5 Gini index = 1 – ( (2/6)^2 + (4/6)^2) = 0.45 Weighted sum of the Gini Indices can be calculated as follows: Gini Index for Open Interest = (4/10) 0.5 + (6/10) 0.45 = 0.47
How to calculate the Gini coefficient of a country?
Therefore, the Gini coefficient of the population is 0.341. Let us take the example of two countries (Country X and Country Y) and check which country exhibits higher income inequality. Based on the following information, calculate their Gini coefficient. Fraction of Richer Population = 1 – 0.30 Fraction of Richer Population = 0.70