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Is there a 'change in efficiency theory'?

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Author Info
Cesaltina Pacheco Pires
Duarte Brito

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Abstract

A standard result in oligopoly models is that the more efficient firms have larger market shares. The main question being answered in this paper is: 'if a firm increases (decreases) its relative efficiency does it increase (decrease) its market share?'. We show that, in two widely used models where more efficient firms have larger equilibrium market shares, it is possible to have a firm getting relatively less (more) efficient than its rivals and, at the same time, increasing (decreasing) its market share.

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Publisher Info
Article provided by Taylor and Francis Journals in its journal International Journal of the Economics of Business.

Volume (Year): 10 (2003)
Issue (Month): 3 (November)
Pages: 337-345
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Handle: RePEc:taf:ijecbs:v:10:y:2003:i:3:p:337-345

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Related research
Keywords: Efficiency Hypothesis Market Share Dominant Firm

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Demsetz, Harold, 1973. "Industry Structure, Market Rivalry, and Public Policy," Journal of Law & Economics, University of Chicago Press, vol. 16(1), pages 1-9, April.
  2. Dobson, Paul W & Waterson, Michael, 1997. "Countervailing Power and Consumer Prices," Economic Journal, Royal Economic Society, vol. 107(441), pages 418-30, March. [Downloadable!] (restricted)
  3. Raymond Deneckere & Carl Davidson, 1985. "Incentives to Form Coalitions with Bertrand Competition," RAND Journal of Economics, The RAND Corporation, vol. 16(4), pages 473-486, Winter. [Downloadable!] (restricted)
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