The Lorenz curve is a graphical representation of the distribution of income or wealth among a population.
Lorenz curves show the percentiles of the population as a function of the total income or wealth of people who are at or below this percentile.
Lorenz curves, together with their derived statistics, are widely used to measure inequality within a population.
Because Lorenz curves are mathematical estimates based on fitting a continuous curve to incomplete and discrete data, they may be imperfect measures of true inequality.