NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Competition in Health Care Markets

Martin Gaynor, Robert J. Town

NBER Working Paper No. 17208
Issued in July 2011

---- Acknowledgements -----

We wish to thank participants at the Handbook of Health Economics meeting in Lisbon, Portugal, Pedro Pita Barros, and Cory Capps for helpful comments and suggestions. Misja Mikkers, Rein Halbersma, and Ramsis Croes of the Netherlands Healthcare Authority graciously provided data on hospital and insurance market structure in the Netherlands. David Emmons kindly provided aggregates of the American Medical Association's calculations of health insurance market structure. Leemore Dafny was kind enough to share her measures of market concentration for the large employer segment of the U.S. health insurance market. All opinions expressed here and any errors are the sole responsibility of the authors. No endorsement or approval by any other individuals or institutions is implied or should be inferred.

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