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 1916, Universidad de los Andes, Facultad de Economía, CEDE.
    • Handle: RePEc:col:000089:001916
    as

    Download full text from publisher

    File URL: https://repositorio.uniandes.edu.co/bitstream/handle/1992/7970/dcede2005-61.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Scully, Gerald W, 1974. "Pay and Performance in Major League Baseball," American Economic Review, American Economic Association, vol. 64(6), pages 915-930, December.
    2. Cabral, Luis M. B., 2000. "Introduction to Industrial Organization," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262032864, December.
    3. 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.
    4. 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.
    5. 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.
    6. R. Schmalensee & R. Willig (ed.), 1989. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 1, number 1.
    7. R. Schmalensee & R. Willig (ed.), 1989. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 2, number 2.
    8. A. P. Lerner, 1934. "The Concept of Monopoly and the Measurement of Monopoly Power," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 1(3), pages 157-175.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Sabien Dobbelaere & Jacques Mairesse, 2013. "Panel data estimates of the production function and product and labor market imperfections," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 28(1), pages 1-46, January.
    2. Lukáš Čechura & Tinoush Jamali Jaghdani, 2021. "Market Imperfections within the European Wheat Value Chain: The Case of France and the United Kingdom," Agriculture, MDPI, vol. 11(9), pages 1-21, August.
    3. Valentiny, Pál, 2019. "Közgazdaságtan a jogalkalmazásban [Forensic economics]," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(2), pages 134-162.
    4. Simpasa, Anthony, 2010. "Characterising market power and its determinants in the Zambian banking indudstry," MPRA Paper 27232, University Library of Munich, Germany.
    5. Subal Kumbhakar & Sjur Baardsen & Gudbrand Lien, 2012. "A New Method for Estimating Market Power with an Application to Norwegian Sawmilling," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 40(2), pages 109-129, March.
    6. Perloff, Jeffrey M, 1991. "Econometric analysis of imperfect competition and implications for trade research," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt46w1j22d, Department of Agricultural & Resource Economics, UC Berkeley.
    7. Bhattacharyya, Aditi & Kutlu, Levent & Sickles, Robin C., 2018. "Pricing Inputs and Outputs: Market prices versus shadow prices, market power, and welfare analysis," Working Papers 18-009, Rice University, Department of Economics.
    8. Sergio de Nardis & Cristina Pensa, 2004. "How intense is Competition in International Markets of Traditional goods?," ISAE Working Papers 45, ISTAT - Italian National Institute of Statistics - (Rome, ITALY).
    9. Robert Germeshausen & Timo Panke & Heike Wetzel, 2020. "Firm characteristics and the ability to exercise market power: empirical evidence from the iron ore market," Empirical Economics, Springer, vol. 58(5), pages 2223-2247, May.
    10. C. S. C. Sekhar, 2010. "Structure of the World Wheat Market: Some Implications for Strategic Trade Policy?," Journal of Quantitative Economics, The Indian Econometric Society, vol. 8(2), pages 142-158.
    11. Jean-Paul Chavas & Guanming Shi & Kyle Stiegert, 2020. "Pricing and Industry Structure when Demand Elasticity Changes," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 57(4), pages 891-907, December.
    12. Goldberg, Pinelopi Koujianou & Knetter, Michael M., 1999. "Measuring the intensity of competition in export markets," Journal of International Economics, Elsevier, vol. 47(1), pages 27-60, February.
    13. Richard Schmalensee, 2012. "“On a Level with Dentists?” Reflections on the Evolution of Industrial Organization," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 41(3), pages 157-179, November.
    14. Martin Feldkircher & Michael Sigmund, 2017. "Comparing market power at home and abroad: evidence from Austrian banks and their subsidiaries in CESEE," Focus on European Economic Integration, Oesterreichische Nationalbank (Austrian Central Bank), issue Q3/17, pages 59-77.
    15. Marcel Canoy & S. Onderstal, 2003. "Tight oligopolies: in search of proportionate remedies," CPB Document 29.rdf, CPB Netherlands Bureau for Economic Policy Analysis.
    16. Isayenko Oleksiy & Maryanchyk Ivan, 2006. "Market power in oligopoly: The case of the Ukrainian cement industry," EERC Working Paper Series 06-06e, EERC Research Network, Russia and CIS.
    17. Čechura, Lukáš & Jamali Jaghdani, Tinoush, 2021. "Market imperfections within the European wheat value chain: The case of France and the United Kingdom," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 11(9).
    18. Marcel Canoy & S. Onderstal, 2003. "Tight oligopolies: in search of proportionate remedies," CPB Document 29, CPB Netherlands Bureau for Economic Policy Analysis.
    19. Kaplow, Louis & Shapiro, Carl, 2007. "Antitrust," Handbook of Law and Economics, in: A. Mitchell Polinsky & Steven Shavell (ed.), Handbook of Law and Economics, edition 1, volume 2, chapter 15, pages 1073-1225, Elsevier.
    20. Manthos D. Delis & Sotirios Kokas & Steven Ongena, 2016. "Foreign Ownership and Market Power in Banking: Evidence from a World Sample," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 48(2-3), pages 449-483, March.

    More about this item

    Keywords

    Market Power; Mark Up; Mark Down; Lerner Index; Exploitation Measures; Industrial Organization; Conjectural Variations;
    All these keywords.

    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.

    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 bibliographic 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.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Universidad De Los Andes-Cede (email available below). General contact details of provider: https://edirc.repec.org/data/ceandco.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.