Differing Impacts Of Market Concentration On Affordable Care Act Marketplace Premiums.
Recent increases in market concentration among health plans, hospitals, and medical groups raise questions about what impact such mergers are having on costs to consumers. We examined the impact of market concentration on the growth of health insurance premiums between 2014 and 2015 in two Affordabl...
| Publicado en: | Health Affairs Vol. 35; no. 5; pp. 880 - 889 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Health Affairs Publishing, LLC
May2016
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=115170638&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 115170638 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02782715 HAF jtl: Health Affairs issn: 02782715 maglogo: N pubinfo: dt: May2016 vid: 35 iid: 5 pid: 1453 pub: Health Affairs Publishing, LLC place: Washington, District of Columbia artinfo: ui: 115170638 115170638 115170638 10.1377/hlthaff.2015.1229 115170638 ppf: 880 ppct: 9 formats: tig: atl: Differing Impacts Of Market Concentration On Affordable Care Act Marketplace Premiums. aug: au: Scheffler, Richard M. Arnold, Daniel R. Fulton, Brent D. Glied, Sherry A. affil: Distinguished professor, School of Public Health, University of California, Berkeley sug: subj: Patient Protection and Affordable Care Act Health Insurance Exchanges United States Health Care Costs United States Insurance, Health Economics California New York United States Scales Descriptive Statistics Mergers and Acquisitions Adult Human Multiple Regression Costs and Cost Analysis Funding Source Adult: 19-44 years ab: Recent increases in market concentration among health plans, hospitals, and medical groups raise questions about what impact such mergers are having on costs to consumers. We examined the impact of market concentration on the growth of health insurance premiums between 2014 and 2015 in two Affordable Care Act state-based Marketplaces: Covered California and NY State of Health. We measured health plan, hospital, and medical group market concentration using the well-known Herfindahl-Hirschman Index (HHI) and used a multivariate regression model to relate these measures to premium growth. Both states exhibited a positive association between hospital concentration and premium growth and a positive (but not statistically significant) association between medical group concentration and premium growth. Our results for health plan concentration differed between the two states: It was positively associated with premium growth in New York but negatively associated with premium growth in California. The health plan concentration finding in Covered California may be the result of its selectively contracting with health plans. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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