Changes to ACA Individual Insurance Markets After States Leave Healthcare.gov 2016-2023.

To evaluate changes in enrollment, average risk scores, and premiums in the Affordable Care Act individual market after states transitioned from the federally facilitated marketplace (Healthcare.gov) to a state-based marketplace (SBM) between 2018 and 2023. This study employed a retrospective, quasi...

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Publicado en:Inquiry (00469580) Vol. 62; pp. 1 - 9
Autores principales: Anderson, David M., Beniwal, Sukriti, Kanimian, Salpy
Formato: Artículo
Publicado: Sage Publications Inc. 9/10/2025
Materias:
Acceso en línea:Ver este registro en EBSCOhost
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        atl: Changes to ACA Individual Insurance Markets After States Leave Healthcare.gov 2016-2023.
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        au:
          Anderson, David M.
          Beniwal, Sukriti
          Kanimian, Salpy
        affil:
          University of South Carolina, Columbia, SC, USA
          Georgia State University, Atlanta, GA, USA
          Rice University, Houston, TX, USA
      su:
        Health services accessibility
        Government policy
        Insurance
        Health insurance
        Health insurance exchanges
        Retrospective studies
        Health care reform
        Federal government
        Medical records
        Acquisition of data
        Research methodology
        Public administration
        Confidence intervals
        Patient Protection & Affordable Care Act
        Law
        Legislation
        United States
      sug:
        subj:
          United States
          Health services accessibility
          Government policy
          Insurance
          Health insurance
          Health insurance exchanges
          Retrospective studies
          Health care reform
          Federal government
          Medical records
          Acquisition of data
          Research methodology
          Public administration
          Confidence intervals
          Patient Protection & Affordable Care Act
          Law
          Legislation
      keyword:
        Affordable Care Act
        cooperative federalism
        health insurance
        health policy
        health reform
        state policy
      ab: To evaluate changes in enrollment, average risk scores, and premiums in the Affordable Care Act individual market after states transitioned from the federally facilitated marketplace (Healthcare.gov) to a state-based marketplace (SBM) between 2018 and 2023. This study employed a retrospective, quasi-experimental design of secondary data using a synthetic difference-in-differences analysis methodology. Our primary data source consisted of individual market risk adjustment summaries from 2016 to 2023. We conducted a synthetic difference-in-differences analysis to evaluate changes in enrolled member months, average premium paid, and state average risk scores in the individual health insurance market. Our treatment group comprised 4 states that transitioned from Healthcare.gov to a state-based marketplace between 2018 and 2023. The comparison group was the 33 states that continuously used Healthcare.gov from 2016 to 2023. States that converted from the FFM, Healthcare.gov, to a state-based marketplace did not experience statistically significant changes in enrollment, premiums paid, or state average risk scores. These results were robust to alternative specifications. The transition to state-based marketplaces in 4 states did not lead to significant changes in the ACA individual market risk pool enrollment, or premiums paid while potentially increasing state policy autonomy. Future policy efforts should explore how states can leverage policy autonomy to improve market outcomes and coverage.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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