Advanced Search
MyIDEAS: Login to save this article or follow this journal

A note on the excess entry theorem in spatial models with elastic demand

Contents:

Author Info

  • Gu, Yiquan
  • Wenzel, Tobias

Abstract

This paper revisits the excess entry theorem in spatial models according to Vickrey [Vickrey, W.S., 1964. Microstatics. Harcourt, Brace and World, New York] and Salop [Salop, S., 1979. Monopolistic competition with outside goods. Bell Journal of Economics 10, 141-156] while relaxing the assumption of inelastic demand. Using a demand function with a constant demand elasticity, we show that the number of firms that enter a market decreases with the degree of demand elasticity. We find that the excess entry theorem does only hold when the demand elasticity is sufficiently small. Otherwise, there is insufficient entry. In the limiting case of unit elastic demand, the market is monopolized. We broaden our results with a more general transportation cost function.

Download Info

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-4VFC7RD-1/2/0cf5196e80cf54a3773aedaad825d389
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.

Bibliographic Info

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

Volume (Year): 27 (2009)
Issue (Month): 5 (September)
Pages: 567-571

as in new window
Handle: RePEc:eee:indorg:v:27:y:2009:i:5:p:567-571

Contact details of provider:
Web page: http://www.elsevier.com/locate/inca/505551

Related research

Keywords: Elastic demand Spatial models Excess entry theorem;

Other versions of this item:

Find related papers by JEL classification:

References

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. Anderson, Simon P & de Palma, André, 1996. "From Local to Global Competition," CEPR Discussion Papers 1328, C.E.P.R. Discussion Papers.
  2. Dixit, Avinash K & Stiglitz, Joseph E, 1975. "Monopolistic Competition and Optimum Product Diversity," The Warwick Economics Research Paper Series (TWERPS) 64, University of Warwick, Department of Economics.
  3. Shin-Kun Peng & Takatoshi Tabuchi, 2007. "Erratum: Spatial Competition in Variety and Number of Stores," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 16(2), pages 537-537, 06.
  4. Lancaster, Kelvin, 1975. "Socially Optimal Product Differentiation," American Economic Review, American Economic Association, vol. 65(4), pages 567-85, September.
  5. Pettengill, John S, 1979. "Monopolistic Competition and Optimum Product Diversity: Comment," American Economic Review, American Economic Association, vol. 69(5), pages 957-60, December.
  6. Jonathan H Hamilton & James F. Klein & Eytan Sheshinski & Steven M. Slutsky, 1994. "Quantity Competition in a Spatial Model," Canadian Journal of Economics, Canadian Economics Association, vol. 27(4), pages 903-17, November.
  7. Steven C. Salop, 1979. "Monopolistic Competition with Outside Goods," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 141-156, Spring.
  8. Toshihiro Matsumura, 2000. "Entry regulation and social welfare with an integer problem," Journal of Economics, Springer, vol. 71(1), pages 47-58, February.
  9. Matsumura, Toshihiro & Okamura, Makoto, 2006. "A note on the excess entry theorem in spatial markets," International Journal of Industrial Organization, Elsevier, vol. 24(5), pages 1071-1076, September.
  10. Rath, Kali P. & Zhao, Gongyun, 2001. "Two stage equilibrium and product choice with elastic demand," International Journal of Industrial Organization, Elsevier, vol. 19(9), pages 1441-1455, November.
  11. Bockem, Sabine, 1994. "A Generalized Model of Horizontal Product Differentiation," Journal of Industrial Economics, Wiley Blackwell, vol. 42(3), pages 287-98, September.
  12. Matsumura, Toshihiro & Okamura, Makoto, 2006. "Equilibrium number of firms and economic welfare in a spatial price discrimination model," Economics Letters, Elsevier, vol. 90(3), pages 396-401, March.
  13. Martin Peitz, 2002. "Price equilibrium in address models of product differentiation: unit-elastic demand," Economic Theory, Springer, vol. 20(4), pages 849-860.
  14. Sattinger, Michael, 1984. "Value of an Additional Firm in Monopolistic Competition," Review of Economic Studies, Wiley Blackwell, vol. 51(2), pages 321-32, April.
  15. Shin-Kun Peng & Takatoshi Tabuchi, 2007. "Spatial Competition in Variety and Number of Stores," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 16(1), pages 227-250, 03.
  16. Hart, Oliver D, 1985. "Monopolistic Competition in the Spirit of Chamberlin: A General Model," Review of Economic Studies, Wiley Blackwell, vol. 52(4), pages 529-46, October.
Full references (including those not matched with items on IDEAS)

Citations

Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
as in new window

Cited by:
  1. Yiquan Gu & Tobias Wenzel, 2009. "Product Variety, Price Elasticity of Demand and Fixed Cost in Spatial Models," Ruhr Economic Papers 0092, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen.
  2. Tobias Wenzel, 2010. "Liberalization of Opening Hours with Free Entry," German Economic Review, Verein für Socialpolitik, vol. 11, pages 511-526, November.
  3. Stuehmeier, Torben & Wenzel, Tobias, 2009. "Getting beer during commercials: adverse effects of Ad-Avoidance," IWQW Discussion Paper Series 10/2009, Friedrich-Alexander-Universität Erlangen-Nürnberg, Institut für Wirtschaftspolitik und Quantitative Wirtschaftsforschung (IWQW).
  4. Esteves, Rosa-Branca & Reggiani, Carlo, 2014. "Elasticity of demand and behaviour-based price discrimination," International Journal of Industrial Organization, Elsevier, vol. 32(C), pages 46-56.
  5. Rasch, Alexander & Herre, Jesko, 2013. "Customer-side transparency, elastic demand, and tacit collusion under differentiation," Information Economics and Policy, Elsevier, vol. 25(1), pages 51-59.
  6. Stefano Colombo, 2011. "Spatial price discrimination in the unidirectional Hotelling model with elastic demand," Journal of Economics, Springer, vol. 102(2), pages 157-169, March.
  7. Marco Runkel, 2011. "Revenue Sharing, Competitive Balance and the Contest Success Function," German Economic Review, Verein für Socialpolitik, vol. 12(3), pages 256-273, 08.
  8. Gu, Yiquan & Wenzel, Tobias, 2012. "Price-dependent demand in spatial models," DICE Discussion Papers 43, Heinrich‐Heine‐Universität Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).
  9. Gu, Yiquan & Wenzel, Tobias, 2011. "Transparency, price-dependent demand and product variety," Economics Letters, Elsevier, vol. 110(3), pages 216-219, March.
  10. Tim Paul Thomes, 2010. "Vertically Related Markets of Collective Licensing of Differentiated Copyrights with Indirect Network Effects," Jena Economic Research Papers 2010-056, Friedrich-Schiller-University Jena, Max-Planck-Institute of Economics.
  11. Hattori, Keisuke & Yoshikawa, Takeshi, 2013. "Free Entry and Social Inefficiency under Co-opetition," MPRA Paper 44816, University Library of Munich, Germany.

Lists

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

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:eee:indorg:v:27:y:2009:i:5:p:567-571. 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.