Selection experiences in Medicare HMOs: pre-enrollment expenditures.

Journal Article (Journal Article)

Using 1993 and 1994 data, the authors examine whether beneficiaries who enroll in a Medicare health maintenance organization (HMO), including those enrolling for only a short period of time, have lower expenditures than continuous fee-for-service (FFS) beneficiaries the year prior to enrollment. We also test whether biased selection varies by the level of HMO market penetration and the rate of market-share growth. We find favorable selection associated with enrollment into Medicare HMOs, which declines as market share increases but does not disappear. Among short-term enrollees, we find unfavorable selection, however, selection bias was not sensitive to market characteristics.

Full Text

Duke Authors

Cited Authors

  • Call, KT; Dowd, B; Feldman, R; Maciejewski, M

Published Date

  • 1999

Published In

Volume / Issue

  • 20 / 4

Start / End Page

  • 197 - 209

PubMed ID

  • 11482122

Pubmed Central ID

  • PMC4194606

International Standard Serial Number (ISSN)

  • 0195-8631


  • eng

Conference Location

  • United States