IDEAS home Printed from
   My bibliography  Save this article

Antitrust Analysis For The Internet Upstream Market: A Border Gateway Protocol Approach


  • Alessio D'Ignazio
  • Emanuele Giovannetti


We study concentration in the European Internet upstream access market. The possibility of measuring market concentration depends on a correct definition of the market itself; however, this is not always possible, because very often in the Internet industry antitrust authorities lack reliable pricing and traffic data. We present an alternative approach based on the inference of the Internet operators' interconnection policies using micro-data from their Border Gateway Protocol (BGP) tables. We assess market concentration following a two-step process: first, we propose a price-independent algorithm for defining both the vertical and geographical relevant market boundaries; then we calculate market concentration indexes using two novel metrics. These assess, for each undertaking, its role both in terms of essential network facility and of wholesale market dominance. The results, applied to four leading Internet exchange points in London, Amsterdam, Frankfurt, and Milan, show that some vertical segments of these markets are highly concentrated, while others are extremely competitive. According to the Merger Guidelines, some of the estimated market concentration values would immediately fall within the special attention category.

Suggested Citation

  • Alessio D'Ignazio & Emanuele Giovannetti, 2006. "Antitrust Analysis For The Internet Upstream Market: A Border Gateway Protocol Approach," Journal of Competition Law and Economics, Oxford University Press, vol. 2(1), pages 43-69.
  • Handle: RePEc:oup:jcomle:v:2:y:2006:i:1:p:43-69.

    Download full text from publisher

    File URL:
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.


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

    Cited by:

    1. repec:eee:telpol:v:39:y:2015:i:7:p:608-622 is not listed on IDEAS

    More about this item


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:oup:jcomle:v:2:y:2006:i:1:p:43-69.. 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: (Oxford University Press) The email address of this maintainer does not seem to be valid anymore. Please ask Oxford University Press to update the entry or send us the correct email address or (Christopher F. Baum). General contact details of provider: .

    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.

    We have no references for this item. You can help adding them by using 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 RePEc Author Service 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.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.