as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
explain what a gini coefficient is.
user
a gini coefficient is a measure of inequality that is commonly used in economics. it is a number between 0 and 1, where 0 is perfect equality and 1 is perfect inequality. the gini coefficient is calculated by measuring the area between the lorenz curve and the line of perfect equality, which represents the cumulative share of the population held by each income group.
assistant