Effect of low-income elderly insurance copayment subsidies

Stephen T. Parente, William N. Evans

Research output: Contribution to journalReview article

4 Scopus citations


The authors use a two-part model of demand to model the impact of qualified Medicare beneficiary (QMB) enrollment on medical care use. Assuming QMB enrollment to be exogenous, they find Medicare Part B utilization to be 12 percent higher and Part B expenditures 44 percent greater among QMBs than among eligible non-enrollees. There is no difference between these two groups in overall Part A expenditures. Modeling the possibility that QMB enrollment is endogenous, the authors find qualitatively similar results, but the estimates are not precisely estimated.

Original languageEnglish (US)
Pages (from-to)19-37
Number of pages19
JournalHealth Care Financing Review
Issue number2
StatePublished - Dec 1 1998

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