‘HMO Penetration, Competition, and Risk-Adjusted Hospital Mortality’
HSR 36(6 Pt 1): 1019-35
Assesses the HMO ‘spill-over’ effect – how does HMO penetration and competition affect the treatment quality of non-HMO patients?
Hospital competition (HHI-measured) is included as an explanatory variable, along with several other hospital characteristics.
Key results:
Hospital competition, as measured by the HHI, was not a significant determinant of excess mortality in any of the models estimated, and nor was HMO penetration.
