I. It measures the level of income inequality in the society.
IL. Higher the Gini coefficient, lower the inequality.
III. It can be derived using the Lorenz curve.
Select the correct answer from the options given below:
Correct Answer: (b) I and III only
Solution:The Gini coefficient, also known as the Gini index or Gini ratio, is a measure of statistical dispersion intended to represent the income inequality, the wealth inequality, or the consumption inequality within a nation or a society. It was developed by Italian statistician and sociologist Corrado Gini. The Gini coefficient measures the inequality among the values of a frequency distribution, such as levels of income. The coefficient of the Gini index ranges from 0 (or 0%) to 1 (or 100%), with 0 representing perfect equality and 1 representing perfect inequality. It means higher the Gini coefficient, higher the inequality. It can be derived using the Lorenz curve. The Gini coefficient is equal to the area below the line of perfect equality minus the area below the Lorenz curve, divided by the area below the line of perfect equality. Hence, statements I and III are correct, while statement II is incorrect.