Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/221303
Authors: 
Porath, Elchanan Ben
Gilboa, Itzhak
Year of Publication: 
1991
Series/Report no.: 
Discussion Paper 944
Abstract: 
The paper provides an axiomatization of linear inequality measures as a representation of a binary relation on the subspace of income profiles having the same total income. Interpreting the binary relation as a preferences (of, say, a policymaker), we extend the axioms to the whole space of income profiles, and find that they characterize linear social evaluation functions. The axiomatiziation seems to suggest that a policymaker who has a linear measure of inequality on a subspace should have a linear evaluation on the whole space. In particular, we find that an extension of the preferences reflected in the Gini index to the whole space is represented by a linear combination of total income and the Gini index.
Document Type: 
Working Paper

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