IDEAS home Printed from https://ideas.repec.org/p/pca/wpaper/20.html
   My bibliography  Save this paper

Bias and Size Effects of Price-Comparison Search Engines: Theory and Experimental Evidence

Author

Listed:
  • Aurora García-Gallego

    () (Universitat Jaume I)

  • Nikolaos Georgantzís

    () (Universitat Jaume I)

  • Pedro Pereira

    () (Autoridade da Concorrência)

  • José C. Pernías-Cerrillo

    () (Universitat Jaume I)

Abstract

This article, analyzes the impact on consumer prices of the size and bias of price comparison search engines. we develop a model, related to Burdett and Judd (1983) and Varian (1980), and test experimentally several theoretical predictions. The experimental results confirm the model’s predictions regarding the impact of the number of firms, and the type of bias of the search engine, but reject the model’s predictions regarding changes in the size of the index.

Suggested Citation

  • Aurora García-Gallego & Nikolaos Georgantzís & Pedro Pereira & José C. Pernías-Cerrillo, 2007. "Bias and Size Effects of Price-Comparison Search Engines: Theory and Experimental Evidence," Working Papers 20, Portuguese Competition Authority.
  • Handle: RePEc:pca:wpaper:20
    as

    Download full text from publisher

    File URL: http://www.concorrencia.pt/download/WP20_SearchEngines_Jan07.pdf
    File Function: First version, 2007
    Download Restriction: no

    More about this item

    Keywords

    Search engines; incomplete information; biased information; price levels; experiments.;

    JEL classification:

    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    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:pca:wpaper: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: (Duarte Brito). General contact details of provider: http://edirc.repec.org/data/acogvpt.html .

    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.