IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

Sequential Location Equilibria Under Incomplete Information

  • Marcel Boyer
  • Jean-Jacques Laffont
  • Philippe Mahenc
  • Michel Moreaux

We consider a simple model of incomplete information in location theory. Two firms compete in a two stage framework: a sequential location stage and a price competition stage. Firm 1 knows both its own constant marginal cost technology and that of Firm 2, whereas the latter has incomplete information about firm 1's technology. The location stage turns out to be a monotonic signalling game and the unique D1 equilibrium is a pure strategy separating equilibrium if Firm 1's cost advantage is below some bound, and otherwise a pooling equilibrium if the prior probability that Firm 1 is of the low cost type is high, or a semi-pooling equilibrium if it is low. This surprising result is due to the fact that the location gap between the two types of Firm 1 is bounded because of natural economic reasons, which may prevent the separation of the two types. Hence, incomplete information matters: the equilibrium locations differ quite significantly from the full information equilibrium locations. Nous proposons ici un modèle simple d'information incomplète en théorie de la localisation. Deux entreprises s'affrontent dans un contexte à deux étapes : une étape de localisation séquentielle et un étape de concurrence en prix. La firme 1 connaît sa technologie à coût marginal constant et celle de la firme 20501s cette dernière n'a qu'une information imparfaite de la technologie de sa concurrente. La concurrence de première étape s'avère être un jeu de signal monotone et l'équilibre D1 unique est un équilibre séparateur en stratégies pures si l'avantage de coût de la firme 1 est relativement faible et sinon, un équilibre mélangeant, si la probabilité a priori que la firme 1 soit de type coût faible est élevée, ou un équilibre semi-mélangeant, si cette probabilité est faible. Ce résultat surprenant est dû au fait que l'écart de localisation entre les firmes est naturellement borné, ce qui peut empêcher la séparation des types. Ainsi, les localisations d'équilibre d'information incomplète diffèrent significativement des localisations d'équilibre d'information complète.

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:
Download Restriction: no

Paper provided by CIRANO in its series CIRANO Working Papers with number 94s-20.

in new window

Length: 36 pages
Date of creation: 01 Nov 1994
Date of revision:
Handle: RePEc:cir:cirwor:94s-20
Contact details of provider: Postal: 1130 rue Sherbrooke Ouest, suite 1400, Montréal, Quéc, H3A 2M8
Phone: (514) 985-4000
Fax: (514) 985-4039
Web page:

More information through EDIRC

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. Carlton, Dennis W, 1983. "A Reexamination of Delivered Pricing Systems," Journal of Law and Economics, University of Chicago Press, vol. 26(1), pages 51-70, April.
  2. Hobbs, Benjamin F, 1986. "Mill Pricing versus Spatial Price Discrimination under Bertrand and Cournot Spatial Competition," Journal of Industrial Economics, Wiley Blackwell, vol. 35(2), pages 173-91, December.
  3. HAMILTON, John H. & MacLEOD, W. Bentley & THISSE, Jacques-François, . "Spatial competition and the core," CORE Discussion Papers RP 986, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  4. Anderson, Simon P & de Palma, Andre & Thisse, Jacques-Francois, 1989. "Spatial Price Policies Reconsidered," Journal of Industrial Economics, Wiley Blackwell, vol. 38(1), pages 1-18, September.
  5. Thisse, J.-F. & Vives, X., 1987. "On the strategic choice of spatial price policy," CORE Discussion Papers 1987008, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
  6. Boyer, Marcel & Laffont, Jean-Jacques & Mahenc, Philippe & Moreaux, Michel, 1994. "Location distortions under incomplete information," Regional Science and Urban Economics, Elsevier, vol. 24(4), pages 409-440, August.
  7. repec:cup:cbooks:9780521305525 is not listed on IDEAS
  8. Milgrom, Paul & Roberts, John, 1982. "Limit Pricing and Entry under Incomplete Information: An Equilibrium Analysis," Econometrica, Econometric Society, vol. 50(2), pages 443-59, March.
  9. d'Aspremont, C & Gabszewicz, Jean Jaskold & Thisse, J-F, 1979. "On Hotelling's "Stability in Competition"," Econometrica, Econometric Society, vol. 47(5), pages 1145-50, September.
  10. repec:cup:cbooks:9780521315647 is not listed on IDEAS
  11. Cho, In-Koo & Sobel, Joel, 1990. "Strategic stability and uniqueness in signaling games," Journal of Economic Theory, Elsevier, vol. 50(2), pages 381-413, April.
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:cir:cirwor:94s-20. 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: (Webmaster)

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.