IDEAS home Printed from
MyIDEAS: Login to save this article or follow this journal

Price competition in a differentiated products duopoly under network effects

  • Griva, Krina
  • Vettas, Nikolaos
Registered author(s):

    We examine price competition under product-specific network effects, in a duopoly where the products are differentiated both horizontally and vertically. We emphasize the role of consumers' expectations formation. When expectations are not influenced by prices, the market may be shared but shares must be equal unless product qualities differ or one firm, possibly even the low-quality one, may capture the entire market. When expectations are influenced by prices, which would be the case when there is commitment, competition becomes more intense and the high-quality firm tends to capture a larger market share. Under strong network effects there is a continuum of equilibria and the higher the prices, the smaller the difference between those prices can be. Requiring continuity of expectations, however, delivers a unique equilibrium where one firm captures the entire market.

    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: 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 Information Economics and Policy.

    Volume (Year): 23 (2011)
    Issue (Month): 1 (March)
    Pages: 85-97

    in new window

    Handle: RePEc:eee:iepoli:v:23:y:2011:i:1:p:85-97
    Contact details of provider: Web page:

    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. Sjaak Hurkens & Ángel L. López, 2010. "Mobile Termination, Network Externalities, and Consumer Expectations," UFAE and IAE Working Papers 812.10, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC).
    2. Toker Doganoglu & Julian Wright, 2003. "Multihoming and compatibility," Departmental Working Papers wp0314, National University of Singapore, Department of Economics.
    3. Jiawei Chen & Ulrich Doraszelski & Joseph E. Harrington, Jr., 2009. "Avoiding market dominance: product compatibility in markets with network effects," RAND Journal of Economics, RAND Corporation, vol. 40(3), pages 455-485.
    4. Rossella Argenziano, 2008. "Differentiated networks: equilibrium and efficiency," RAND Journal of Economics, RAND Corporation, vol. 39(3), pages 747-769.
    5. Katz, Michael L & Shapiro, Carl, 1985. "Network Externalities, Competition, and Compatibility," American Economic Review, American Economic Association, vol. 75(3), pages 424-40, June.
    6. Kim, Jeong-Yoo, 2002. "Product compatibility as a signal of quality in a market with network externalities," International Journal of Industrial Organization, Elsevier, vol. 20(7), pages 949-964, September.
    7. Fjeldstad, Øystein & Moen, Espen R & Riis, Christian, 2010. "Competition with Local Network Externalities," CEPR Discussion Papers 7778, C.E.P.R. Discussion Papers.
    8. Skrzypacz, Andrzej & Mitchell, Matthew F., 2005. "Network Externalities and Long-Run Market Shares," Research Papers 1879, Stanford University, Graduate School of Business.
    9. Laussel, Didier & de Montmarin, Maxime & Van Long, Ngo, 2004. "Dynamic duopoly with congestion effects," International Journal of Industrial Organization, Elsevier, vol. 22(5), pages 655-677, May.
    10. Navon, Ami & Shy, Oz & Thisse, Jacques-François, 1995. "Product Differentiation in the Presence of Positive and Negative Network Effects," CEPR Discussion Papers 1306, C.E.P.R. Discussion Papers.
    11. GRILO, Isabel & SHY, Oz & THISSE, Jacques-François, 1997. "Price competition when consumer behavior is characterized by conformity or vanity," CORE Discussion Papers 1997032, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    12. GABSZEWICZ, Jean & WAUTHY, Xavier, 2004. "Two-sided markets and price competition with multi-homing," CORE Discussion Papers 2004030, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    13. Konstantinos Serfes & Eleftherios Zacharias, 2009. "Location Decisions of Competing Platforms," Working Papers 09-18, NET Institute, revised Aug 2009.
    14. Shy,Oz, 2001. "The Economics of Network Industries," Cambridge Books, Cambridge University Press, number 9780521800952.
    15. Bental, Benjamin & Spiegel, Menahem, 1995. "Network Competition, Product Quality, and Market Coverage in the Presence of Network Externalities," Journal of Industrial Economics, Wiley Blackwell, vol. 43(2), pages 197-208, June.
    16. Griva, Krina & Vettas, Nikolaos, 2004. "Price Competition in a Differentiated Products Duopoly Under Network Effects," CEPR Discussion Papers 4574, C.E.P.R. Discussion Papers.
    17. Andreozzi, Luciano, 2004. "A note on critical masses, network externalities and converters," International Journal of Industrial Organization, Elsevier, vol. 22(5), pages 647-653, May.
    18. Economides, Nicholas, 1996. "The economics of networks," International Journal of Industrial Organization, Elsevier, vol. 14(6), pages 673-699, October.
    19. Anette Boom & Pio Baake, . "Vertical Product Differentiation, Network Externalities, and Compatibility Decisions," Papers 010, Departmental Working Papers.
    20. Daniel Birke, 2009. "The Economics Of Networks: A Survey Of The Empirical Literature," Journal of Economic Surveys, Wiley Blackwell, vol. 23(4), pages 762-793, 09.
    21. Vettas, Nikolaos, 1999. "Location as a Signal of Quality," CEPR Discussion Papers 2165, C.E.P.R. Discussion Papers.
    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:iepoli:v:23:y:2011:i:1:p:85-97. 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.