The question is how can we measure Income Inequality? Fortunately it can be measured with a statistical approach known as the Gini Coefficient.The Gini Coefficient was developed by a statistician named Corrado Gini, and it is a measure of the income distribution of the population in a country. It range between 0 and 1 with 0 being in perfect equal and 1 being highly unequal. It helped define the gap between the rich and poor nations. The income distribution of a nation can also be represented graphically with the Lorenz curve below.