Differentiation and competition in HMO markets

David Dranove*, Anne Gron, Michael J. Mazzeo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)433-454
Number of pages22
JournalJournal of Industrial Economics
Volume51
Issue number4
DOIs
StatePublished - Dec 1 2003

ASJC Scopus subject areas

  • Accounting
  • Business, Management and Accounting(all)
  • Economics and Econometrics

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