Hospital Consolidation Effect on Price and Quality
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Author/YearTime frame of analysisLocation of DataResults
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Akowsa Antwi et al (2009)1999-2005CAPrices increased twofold over period and growth is highest in monopoly markets; however, changes in market concentration are not associated with differential price growth.
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Dranove et al. (2008)1990-2003CA & FLThe association between hospital concentration and price increased during the 1990s and leveled off during the 2000s.
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Melnick and Keller (2007) 1999-2003CAHospital concentration is positively associated with price growth; hospitals in large systems experienced higher price growth
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Moriya et al. (2010)2001-2003USInsurer concentration is negatively associated with hospital prices; hospital price/concentration relationship is insignificant.
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Wu (2008)1990-2002MAHospitals for which a rival hospital closed experienced a price increase relative to controls.
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