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Software, metrics, and math techniques employed in the modeling described in this website.

Gini Index

An index that goes by many names, including the Gini coefficient, the Gini ratio, or the normalized Gini index). This index reveals the measure of statistical dispersion intended to represent the income distribution of a nation’s residents, and is the … Continue reading →

Lorenz Curve

Developed by Max O. Lorenz in 1905 for representing inequality of the wealth distribution, the Lorenz curve shows the cumulative percentage of total national income (or some other variable) plotted against the cumulative percentage of the corresponding population (ranked in … Continue reading →


NetLogo is a multi-agent programmable modeling environment. It is used by tens of thousands of students, teachers and researchers worldwide. It is authored by Uri Wilensky and developed at the Center for Connected Learning and Computer-Based Modeling (CCL) at Northwestern … Continue reading →