Effects of HMOs on the creation of competitive markets for hospital services

Roger Feldman, Hung Ching Chan, John Kralewski, Bryan Dowd, Janet Shapiro

Research output: Contribution to journalArticle

39 Scopus citations

Abstract

Why do health maintenance organizations (HMOs) use particular hospitals, and do they concentrate patients in hospitals where they obtain low prices? We answered these questions with a study of six HMOs in four large metropolitan areas in 1986. A two-part model was estimated for the probability that a hospital would be used and the demand for general inpatient admissions at hospitals that were used. Four staff-network plans in our study do shop for hospital services on the basis of price more than was generally believed. However, two independent practice association (IPAs) plans use more hospitals in the community and do not concentrate patients effectively at hospitals that offer the lowest prices.

Original languageEnglish (US)
Pages (from-to)207-222
Number of pages16
JournalJournal of Health Economics
Volume9
Issue number2
DOIs
StatePublished - Sep 1990

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