Lorenz Curve Map

Lorenz Curve Map

Lorenz curve maps are useful in representing the degree of inequality that exists between distributions involving two variables. Often times, these curves represent the outcomes of incomes and wealth when they are distributed unequally throughout societies. The dashed lines in lorenz curves display how data would be if properties were evenly distributed and the solid dark line shows the actual distribution. As show in the example below, the area between  the curve and the straight line represents the area of inequality.

http://www.unc.edu/depts/econ/byrns_web/Economicae/Figures/Lorenz.htm