The Relationship between the Gini and the Mean Absolute Deviation

9 Pages Posted: 18 Oct 2011

See all articles by Shlomo Yitzhaki

Shlomo Yitzhaki

Hebrew University of Jerusalem - Department of Economics; National Bureau of Economic Research (NBER)

Peter J. Lambert

University of Oregon - Department of Economics; CESifo (Center for Economic Studies and Ifo Institute)

Date Written: October 18, 2011

Abstract

The aim of this note is to argue that the between-group Gini mean difference (BGMD) includes the mean absolute deviation (MAD), the least absolute deviation (LAD), and the absolute deviation from a given quantile (QUAD) as special cases. Those measures can be interpreted as equivalents to BGMD measures, according to the particular partition of the data. As such they possess the properties of the Gini mean difference but they omit the intra-group variability. It is argued that the loss of the intra-group information is too heavy a price to pay.

Keywords: Gini, LAD, MAD, QUAD

Suggested Citation

Yitzhaki, Shlomo and Lambert, Peter J., The Relationship between the Gini and the Mean Absolute Deviation (October 18, 2011). Available at SSRN: https://ssrn.com/abstract=1945705 or http://dx.doi.org/10.2139/ssrn.1945705

Shlomo Yitzhaki (Contact Author)

Hebrew University of Jerusalem - Department of Economics ( email )

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National Bureau of Economic Research (NBER) ( email )

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Peter J. Lambert

University of Oregon - Department of Economics ( email )

Eugene, OR 97403
United States

CESifo (Center for Economic Studies and Ifo Institute)

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Munich, DE-81679
Germany

HOME PAGE: http://www.CESifo.de

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