Article ID Journal Published Year Pages File Type
5062590 Economics Letters 2007 7 Pages PDF
Abstract

The Herfindahl-Hirschman, entropy and N-firm indices may not agree when comparing market concentrations. For different oligopoly markets, the majorization pre-ordering is shown to be both necessary and sufficient for all to agree.

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Related Topics
Social Sciences and Humanities Economics, Econometrics and Finance Economics and Econometrics
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When different market concentration indices agree
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