IDEAS home Printed from https://ideas.repec.org/p/col/000089/001916.html
   My bibliography  Save this paper

A Generalized Index Of Market Power

Author

Listed:
  • Hernán Vallejo G

    ()

Abstract

This paper analyses two approaches to measuring market power -the commonly used Lerner index and a range of exploitation measures-. It is argued that the Lerner index is designed to quantify market power from the supply side, and the exploitation measures are designed to quantify market power from the demand side, and that those two approaches do not always behave in a symmetric way, since they do not always have the same bounds. To sort out these potentially undesirable properties, this paper proposes a new general index to measure market power, which is symmetrical in the sense that it is bounded between cero and one, regardless of whether the market power comes from the supply or the demand side. The index proposed allows for the presence of more than one firm and for the existence of conjectural variations.

Suggested Citation

  • Hernán Vallejo G, 2005. "A Generalized Index Of Market Power," DOCUMENTOS CEDE 001916, UNIVERSIDAD DE LOS ANDES-CEDE.
  • Handle: RePEc:col:000089:001916
    as

    Download full text from publisher

    File URL: http://economia.uniandes.edu.co/publicaciones/d2005-61.pdf
    Download Restriction: no

    Other versions of this item:

    References listed on IDEAS

    as
    1. William M. Boal, 1995. "Testing for Employer Monopsony in Turn-of-the-Century Coal Mining," RAND Journal of Economics, The RAND Corporation, vol. 26(3), pages 519-536, Autumn.
    2. Bresnahan, Timothy F., 1989. "Empirical studies of industries with market power," Handbook of Industrial Organization,in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 2, chapter 17, pages 1011-1057 Elsevier.
    3. William M. Boal & Michael R. Ransom, 1997. "Monopsony in the Labor Market," Journal of Economic Literature, American Economic Association, vol. 35(1), pages 86-112, March.
    4. A. P. Lerner, 1934. "The Concept of Monopoly and the Measurement of Monopoly Power," Review of Economic Studies, Oxford University Press, vol. 1(3), pages 157-175.
    5. Scully, Gerald W, 1974. "Pay and Performance in Major League Baseball," American Economic Review, American Economic Association, vol. 64(6), pages 915-930, December.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    Market Power; Mark Up; Mark Down; Lerner Index; Exploitation Measures; Industrial Organization; Conjectural Variations;

    JEL classification:

    • D49 - Microeconomics - - Market Structure, Pricing, and Design - - - Other
    • L10 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - General
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

    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:col:000089:001916. 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: (Universidad De Los Andes-Cede). 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.

    If CitEc recognized a reference but did not link an item in RePEc 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 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.