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Tutt Library Research Guides

 

Income Distribution: Tools

A comprehensive list of tools to look at income distribution between citizens living within the United States and around the globe as a whole.

Tools for Measuring Inequatity

Inequality

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  Gini Index

  The Gini Index or the Gini coefficient is the most popular tool used to
  calculate inequality by economists.
 
 
 

 

 

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 20:20 Ratio

The 20:20 ratio compares income of the top twenty percent of the population in a given area to the bottom twenty percent of the group.

See also: http://www.equalitytrust.org.uk/resources2/spirit-level/methods
 
 

 

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  Palma Ratio

This tool compares the income of the top ten percent of the population in a given area to the bottom forty percent.

See also: http://www.cgdev.org/blog/palma-vs-gini-measuring-post-2015-inequality

 

 

 

 

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  Theil Index

  The Theil index is a statistic used to measure economic inequality that borrows from information theory.

 

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