2024
Adverse selection and network design under regulated plan prices: Evidence from Medicaid
Kreider A, Layton T, Shepard M, Wallace J. Adverse selection and network design under regulated plan prices: Evidence from Medicaid. Journal Of Health Economics 2024, 97: 102901. PMID: 38944945, PMCID: PMC11392643, DOI: 10.1016/j.jhealeco.2024.102901.Peer-Reviewed Original Research
2023
Risk Adjustment And Promoting Health Equity In Population-Based Payment: Concepts And Evidence
McWilliams J, Weinreb G, Ding L, Ndumele C, Wallace J. Risk Adjustment And Promoting Health Equity In Population-Based Payment: Concepts And Evidence. Health Affairs 2023, 42: 105-114. PMID: 36623215, PMCID: PMC9901844, DOI: 10.1377/hlthaff.2022.00916.Peer-Reviewed Original ResearchConceptsRisk adjustmentHealth equityCurrent risk adjustmentHealth care useSocial risk factorsPromoting Health EquityFunctional statusCare useRisk factorsMedicare populationEthnic disparitiesHispanic beneficiariesSocial determinantsWhite beneficiariesPopulation-based paymentsPopulation-based payment modelAnnual spendingPayment modelsHigher proportionPopulationAdjustmentPredictive accuracy
2022
Residual Confounding in Health Plan Performance Assessments: Evidence From Randomization in Medicaid.
Wallace J, McWilliams JM, Lollo A, Eaton J, Ndumele CD. Residual Confounding in Health Plan Performance Assessments: Evidence From Randomization in Medicaid. Annals Of Internal Medicine 2022, 175: 314-324. PMID: 34978862, DOI: 10.7326/m21-0881.Peer-Reviewed Original ResearchConceptsResidual confoundingObservational populationRandomized populationCare useMedicaid populationRisk adjustmentAvoidable emergency department visitsState Medicaid populationDental care usePrimary care useEmergency department visitsHealth plan performancePlan performancePatient characteristicsDepartment visitsBaseline differencesPatient differencesArnold VenturesFurther adjustmentEnrollee characteristicsEnrolleesTotal spendingProvider effectsConfoundingMean spending