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The Impact of Hospital Mergers on Treatment Intensity and Health Outcomes: Working Paper 2011-05

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  • Tamara Hayford

Abstract

Objective. To analyze the impact of hospital mergers on treatment intensity and health outcomes. Data. Hospital inpatient data from California for 1990 through 2006, encompassing forty mergers. Study Design. I used a geographic-based IV approach to determine the effect of a zip code’s exposure to a merger. The merged facility’s market share represents exposure, instrumented with combined pre-merge shares. Additional specifications include the Herfindahl index (HHI), instrumented with predicted change in HHI. Results.

Suggested Citation

  • Tamara Hayford, 2011. "The Impact of Hospital Mergers on Treatment Intensity and Health Outcomes: Working Paper 2011-05," Working Papers 42753, Congressional Budget Office.
    • Handle: RePEc:cbo:wpaper:42753
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    File URL: https://www.cbo.gov/sites/default/files/112th-congress-2011-2012/workingpaper/10-06-2011-Hospital_Mergers_1.pdf
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