The Gini coefficient, or the Gini Index, measures the distribution of income across a population. It gauges economic inequality by measuring income distribution. In this video, you'll learn a simple way to understand this concept through an easy and brief explanation. The coefficient ranges from 0, or 0%, to 1, or 100%, with a higher Gini meaning more inequality. A high-income country and a low-income one can have the same Gini coefficient if they both have similarly distributed incomes.