IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Login to save this article or follow this journal

Firm size inequality and market power

  • Barla, Philippe

In this paper, we reexamine the relationship between performance and concentration in the light of modern oligopoly theory. More specifically, we examine the link that exists between firm size inequality (FSI) and market power. Traditional theory predicts that market power should be higher in markets where FSI is high. Using a model with capacity constraints and endogenous conduct, we show that the market power-FSI relationship is in fact more complex. We show that two effects are at play leading to a U-shaped relationship between market power and FSI. Another implication of this model is that prices should be more unstable in markets where firms are asymmetric in size. In the second part of this paper, we test these predictions on data for the U.S. airline industry. We estimate a fare equation for a panel of 400 routes. We first show that using traditional measures of market concentration such as the Herfindahl is restrictive. We then show that there is indeed a U- shaped relationship between FSI and Prices holding costs constant and that prices are more unstable in markets where FSI is high.

(This abstract was borrowed from another version of this item.)

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL: http://www.sciencedirect.com/science/article/B6V8P-404R38S-1/2/531c8a79d189489f2b9c8318ef4c3865
Download Restriction: Full text for ScienceDirect subscribers only

As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

Article provided by Elsevier in its journal International Journal of Industrial Organization.

Volume (Year): 18 (2000)
Issue (Month): 5 (July)
Pages: 693-722

as
in new window

Handle: RePEc:eee:indorg:v:18:y:2000:i:5:p:693-722
Contact details of provider: Web page: http://www.elsevier.com/locate/inca/505551

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.:

as in new window
  1. Jan K. Brueckner & Nichola J. Dyer & Pablo T. Spiller, 1992. "Fare Determination in Airline Hub-and-Spoke Networks," RAND Journal of Economics, The RAND Corporation, vol. 23(3), pages 309-333, Autumn.
  2. Evans, William N & Kessides, Ioannis N, 1993. "Localized Market Power in the U.S. Airline Industry," The Review of Economics and Statistics, MIT Press, vol. 75(1), pages 66-75, February.
  3. Richard E. Levitan & Martin Shubik, 1970. "Price Duopoly and Capacity Constraints," Cowles Foundation Discussion Papers 287, Cowles Foundation for Research in Economics, Yale University.
  4. Borenstein, S., 1991. "The Evolution of U.S. Airline Competition," Papers 389, California Davis - Institute of Governmental Affairs.
  5. Schmalensee, Richard, 1989. "Inter-industry studies of structure and performance," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 2, chapter 16, pages 951-1009 Elsevier.
  6. Berry, Steven T, 1990. "Airport Presence as Product Differentiation," American Economic Review, American Economic Association, vol. 80(2), pages 394-99, May.
  7. Severin Borenstein, 1989. "Hubs and High Fares: Dominance and Market Power in the U.S. Airline Industry," RAND Journal of Economics, The RAND Corporation, vol. 20(3), pages 344-365, Autumn.
  8. Carl Davidson & Raymond Deneckere, 1984. "Excess Capacity and Collusion," Discussion Papers 675, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  9. Barla, Philippe, 1996. "Rivalry in the U.S. Airline Industry," Cahiers de recherche 9603, Université Laval - Département d'économique.
  10. Brander, James A. & Zhang, Anming, 1993. "Dynamic oligopoly behaviour in the airline industry," International Journal of Industrial Organization, Elsevier, vol. 11(3), pages 407-435, September.
  11. Koo, Anthony Y. C. & Martin, Stephen, 1984. "Market structure and U.S. trade flows," International Journal of Industrial Organization, Elsevier, vol. 2(3), pages 173-197, September.
  12. Douglas W. Caves & Laurits R. Christensen & Michael W. Tretheway, 1984. "Economies of Density versus Economies of Scale: Why Trunk and Local Service Airline Costs Differ," RAND Journal of Economics, The RAND Corporation, vol. 15(4), pages 471-489, Winter.
  13. Encaoua, David & Jacquemin, Alexis, 1980. "Degree of Monopoly, Indices of Concentration and Threat of Entry," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 21(1), pages 87-105, February.
  14. David M. Kreps & Jose A. Scheinkman, 1983. "Quantity Precommitment and Bertrand Competition Yield Cournot Outcomes," Bell Journal of Economics, The RAND Corporation, vol. 14(2), pages 326-337, Autumn.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:eee:indorg:v:18:y:2000:i:5:p:693-722. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Zhang, Lei)

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.