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How to estimate market concentration given grouped data

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  • Patrick Mccloughan
  • Esmaiel Abounoori

Abstract

A novel method is proposed of estimating market concentration for the census case in which firms are grouped into size classes and all that is known about the firms in each category is their number and aggregate size. The formula arises as a way of applying an alternative expression for the concentration ratio based upon the original and first moment size distributions of firms. The semi-parametric technique, which includes a method of interval as well as point estimation, is derived, applied and validated using actual and simulated data. It is anticipated that the estimator will be of use in competition analysis as well as in academic research.

Suggested Citation

  • Patrick Mccloughan & Esmaiel Abounoori, 2003. "How to estimate market concentration given grouped data," Applied Economics, Taylor & Francis Journals, vol. 35(8), pages 973-983.
    • Handle: RePEc:taf:applec:v:35:y:2003:i:8:p:973-983
    DOI: 10.1080/0003648032000050603
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    References listed on IDEAS

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    1. John Sutton, 1997. "Gibrat's Legacy," Journal of Economic Literature, American Economic Association, vol. 35(1), pages 40-59, March.
    2. Geroski, P. A., 1998. "Thinking creatively about markets," International Journal of Industrial Organization, Elsevier, vol. 16(6), pages 677-695, November.
    3. McCloughan, Patrick, 1995. "Simulation of Concentration Development from Modified Gibrat Growth-Entry-Exit Processes," Journal of Industrial Economics, Wiley Blackwell, vol. 43(4), pages 405-433, December.
    4. Davies, Stephen W & Lyons, Bruce R, 1982. "Seller Concentration: The Technological Explanation and Demand Uncertainty," Economic Journal, Royal Economic Society, vol. 92(368), pages 903-919, December.
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    Cited by:

    1. Irving Fisher Committee, 2013. "Proceedings of the Sixth IFC Conference on "Statistical issues and activities in a changing environment", Basel, 28-29 August 2012," IFC Bulletins, Bank for International Settlements, number 36.
    2. Patrick McCloughan, 2005. "What’s Been Happening To Concentration in Irish Industry 1991-2001," The Economic and Social Review, Economic and Social Studies, vol. 36(2), pages 127-156.
    3. Maurizio Naldi & Marta Flamini, 2018. "Dynamics of the Hirschman–Herfindahl Index under New Market Entries," Economic Papers, The Economic Society of Australia, vol. 37(3), pages 344-362, September.
    4. Fernando Ávila & Emilio Flores & Fabrizio López-Gallo & Javier Márquez, 2013. "Concentration indicators: assessing the gap between aggregate and detailed data," IFC Bulletins chapters, in: Bank for International Settlements (ed.), Proceedings of the Sixth IFC Conference on "Statistical issues and activities in a changing environment", Basel, 28-29 August 2012., volume 36, pages 542-559, Bank for International Settlements.
    5. Maurizio Naldi & Marta Flamini, 2017. "Censoring and Distortion in the Hirschman–Herfindahl Index Computation," Economic Papers, The Economic Society of Australia, vol. 36(4), pages 401-415, December.

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