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Differentiation and Competition in HMO Markets

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  • David Dranove
  • Anne Gron
  • Michael J. Mazzeo

Abstract

This paper examines how differentiation among Health Maintenance Organizations (HMOs) affects local market competition. Most markets for HMOs appear sufficiently unconcentrated; however, differences among HMOs may make competition less intense than the number of competitors would suggest. To investigate this possibility, we distinguish HMOs that serve only local markets from those that operate regional or national networks. We analyze how HMOs of one type affect the profitability of the other using an equilibrium model of entry and product choice. While the two types of HMOs have strong competitive effects within segments, the competitive effect of differentiated firms is negligible. Copyright Blackwell Publishing Ltd. 2003.

Suggested Citation

  • David Dranove & Anne Gron & Michael J. Mazzeo, 2003. "Differentiation and Competition in HMO Markets," Journal of Industrial Economics, Wiley Blackwell, vol. 51(4), pages 433-454, December.
  • Handle: RePEc:bla:jindec:v:51:y:2003:i:4:p:433-454
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    Citations

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    Cited by:

    1. Abe Dunn, 2009. "Does Competition Among Medicare Advantage Plans Matter?: An Empirical Analysis of the Effects of Local Competition in a Regulated Environment," EAG Discussions Papers 200905, Department of Justice, Antitrust Division.
    2. repec:eee:touman:v:34:y:2013:i:c:p:71-79 is not listed on IDEAS
    3. Liu, Yiyan & Jin, Ginger Zhe, 2015. "Employer contribution and premium growth in health insurance," Journal of Health Economics, Elsevier, vol. 39(C), pages 228-247.
    4. repec:kap:ijhcfe:v:17:y:2017:i:4:d:10.1007_s10754-017-9215-y is not listed on IDEAS
    5. Pelech, Daria, 2017. "Dropped out or pushed out? Insurance market exit and provider market power in Medicare Advantage," Journal of Health Economics, Elsevier, vol. 51(C), pages 98-112.
    6. Gaynor, Martin & Town, Robert J., 2011. "Competition in Health Care Markets," Handbook of Health Economics, Elsevier.
    7. Matthew Gentzkow & Jesse M. Shapiro, 2010. "What Drives Media Slant? Evidence From U.S. Daily Newspapers," Econometrica, Econometric Society, vol. 78(1), pages 35-71, January.
    8. Yael Hochberg & Michael Mazzeo & Ryan McDevitt, 2015. "Specialization and Competition in the Venture Capital Industry," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 46(4), pages 323-347, June.
    9. Martin Gaynor & Kate Ho & Robert J. Town, 2015. "The Industrial Organization of Health-Care Markets," Journal of Economic Literature, American Economic Association, vol. 53(2), pages 235-284, June.
    10. Trish, Erin E. & Herring, Bradley J., 2015. "How do health insurer market concentration and bargaining power with hospitals affect health insurance premiums?," Journal of Health Economics, Elsevier, vol. 42(C), pages 104-114.
    11. Xiao, Mo & Orazem, Peter F., 2011. "Does the fourth entrant make any difference?: Entry and competition in the early U.S. broadband market," International Journal of Industrial Organization, Elsevier, vol. 29(5), pages 547-561, September.
    12. Leemore Dafny, 2008. "Are Health Insurance Markets Competitive?," NBER Working Papers 14572, National Bureau of Economic Research, Inc.
    13. Rebeca Juan, 2008. "Competition in Local Markets: Some Evidence from the Spanish Retail Banking Market," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 32(2), pages 145-162, March.
    14. Yiyan Liu & Ginger Zhe Jin, 2013. "Employer Contribution and Premium Growth in Health Insurance," NBER Working Papers 19760, National Bureau of Economic Research, Inc.
    15. Kathleen Cleeren & Frank Verboven & Marnik G. Dekimpe & Katrijn Gielens, 2010. "Intra- and Interformat Competition Among Discounters and Supermarkets," Marketing Science, INFORMS, vol. 29(3), pages 456-473, 05-06.
    16. Leemore S. Dafny, 2010. "Are Health Insurance Markets Competitive?," American Economic Review, American Economic Association, vol. 100(4), pages 1399-1431, September.
    17. Bokhari, Farasat A.S., 2009. "Managed care competition and the adoption of hospital technology: The case of cardiac catheterization," International Journal of Industrial Organization, Elsevier, vol. 27(2), pages 223-237, March.
    18. repec:fgv:epgrbe:v:66:n:1:a:3 is not listed on IDEAS
    19. repec:eee:touman:v:61:y:2017:i:c:p:200-208 is not listed on IDEAS
    20. Picone, Gabriel A. & Ridley, David B. & Zandbergen, Paul A., 2009. "Distance decreases with differentiation: Strategic agglomeration by retailers," International Journal of Industrial Organization, Elsevier, vol. 27(3), pages 463-473, May.
    21. Xiao, Mo & Orazem, Peter, 2006. "Do Entry Conditions Vary over Time? Entry and Competition in the Broadband Market: 1999-2003," Staff General Research Papers Archive 12500, Iowa State University, Department of Economics.
    22. Schröder, Bruno, 2012. "Práticas restritivas, barreiras à entrada e concorrência no mercado brasileiro de exibição cinematográfica," Revista Brasileira de Economia - RBE, FGV/EPGE - Escola Brasileira de Economia e Finanças, Getulio Vargas Foundation (Brazil), vol. 66(1), March.
    23. David Prentice, 2012. "The rise of the US Portland cement industry and the role of public science," Cliometrica, Journal of Historical Economics and Econometric History, Association Française de Cliométrie (AFC), vol. 6(2), pages 163-192, May.

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