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Simulation of a Hirschman-Herfindahl index without complete market share information

Author

Listed:
  • Eric Nauenberg
  • Mahdi Alkhamisi

    (Department of Statistics, University of Toronto, Canada)

  • Yuri Andrijuk

    (Statistical Research and Consulting, East Amherst, NY 14051, USA)

Abstract

This paper utilizes maximum likelihood methods to simulate a Hirschman-Herfindahl index (HHI) for markets in which complete market share information is unavailable or delayed. Many jurisdictions either may be unable to administratively collect data or experience delays in collection that make data regarding turbulent markets of limited use. With the development of this method, regulatory authorities monitoring health-care competition or health-care firms can now use market surveys - in which reliable recall is often limited to the largest three or four firms - to produce an on-the-spot measure of market concentration. Copyright © 2003 John Wiley & Sons, Ltd.

Suggested Citation

  • Eric Nauenberg & Mahdi Alkhamisi & Yuri Andrijuk, 2004. "Simulation of a Hirschman-Herfindahl index without complete market share information," Health Economics, John Wiley & Sons, Ltd., vol. 13(1), pages 87-94.
  • Handle: RePEc:wly:hlthec:v:13:y:2004:i:1:p:87-94
    DOI: 10.1002/hec.814
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    File URL: http://hdl.handle.net/10.1002/hec.814
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    References listed on IDEAS

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    1. Keeler, Emmett B. & Melnick, Glenn & Zwanziger, Jack, 1999. "The changing effects of competition on non-profit and for-profit hospital pricing behavior," Journal of Health Economics, Elsevier, vol. 18(1), pages 69-86, January.
    2. Eric Nauenberg & Yuri Andrijuk & Matthew Eisinger, 2001. "Reconsideration of discharge data to measure competition in the hospital industry," Health Economics, John Wiley & Sons, Ltd., vol. 10(3), pages 271-276.
    3. Stanley, Michael H. R. & Buldyrev, Sergey V. & Havlin, Shlomo & Mantegna, Rosario N. & Salinger, Michael A. & Eugene Stanley, H., 1995. "Zipf plots and the size distribution of firms," Economics Letters, Elsevier, vol. 49(4), pages 453-457, October.
    4. Eric Nauenberg & Kisalaya Basu & Harish Chand, 1997. "Hirschman-Herfindahl index determination under incomplete information," Applied Economics Letters, Taylor & Francis Journals, vol. 4(10), pages 639-642.
    5. Zwanziger, Jack & Melnick, Glenn A., 1988. "The effects of hospital competition and the Medicare PPS program on hospital cost behavior in California," Journal of Health Economics, Elsevier, vol. 7(4), pages 301-320, December.
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    Cited by:

    1. Wu, Gang & Liu, Lan-Cui & Wei, Yi-Ming, 2009. "Comparison of China's oil import risk: Results based on portfolio theory and a diversification index approach," Energy Policy, Elsevier, vol. 37(9), pages 3557-3565, September.
    2. Wu, Gang & Wei, Yi-Ming & Fan, Ying & Liu, Lan-Cui, 2007. "An empirical analysis of the risk of crude oil imports in China using improved portfolio approach," Energy Policy, Elsevier, vol. 35(8), pages 4190-4199, August.
    3. repec:eee:corfin:v:45:y:2017:i:c:p:467-479 is not listed on IDEAS
    4. Bai, Chong-En & Mao, Jie & Zhang, Qiong, 2014. "Measuring market concentration in China: the problem with using censored data and its rectification," China Economic Review, Elsevier, vol. 30(C), pages 432-447.
    5. repec:bla:econpa:v:36:y:2017:i:4:p:401-415 is not listed on IDEAS
    6. Sato, Masahiro & Kharrazi, Ali & Nakayama, Hirofumi & Kraines, Steven & Yarime, Masaru, 2017. "Quantifying the supplier-portfolio diversity of embodied energy: Strategic implications for strengthening energy resilience," Energy Policy, Elsevier, vol. 105(C), pages 41-52.

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