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  • Title: Who Entered and Exited the Individual Health Insurance Market Before and After the Affordable Care Act? Evidence from the Medical Expenditure Panel Survey.
    Author: Glied SA, Jackson A.
    Journal: Issue Brief (Commonw Fund); 2018 Nov 01; 2018():1-11. PubMed ID: 30497127.
    Abstract:
    ISSUE: The Affordable Care Act (ACA) made it easier for older adults and those with medical conditions to enroll in individual-market coverage by eliminating risk rating and limiting age rating. While the ACA also encourages young and healthy people to enroll through subsidies and the individual mandate, it’s not clear whether these incentives have been sufficient to prevent the risk pool from becoming disproportionately old and sick. GOAL: To assess whether patterns in individual-market participation changed following ACA implementation. METHODS: Comparison of Medical Expenditure Panel Survey (MEPS) data for the periods 2003–09 and 2014–15. FINDINGS AND CONCLUSION: The analysis found few differences in individual-insurance market participation before and after the ACA. Adverse selection occurred during both: people switching into individual insurance coverage after being uninsured were higher utilizers prior to the switch than were those who remained uninsured. Those who disenrolled from individual plans tended to be lower utilizers of care before switching compared with those who kept their coverage. The main difference was that more people--especially young adults--switched from Medicaid to individual insurance, and vice versa, after the ACA. Adverse enrollment or disenrollment in the individual market did not increase following ACA implementation. The combination of easing rating rules and encouraging participation appears to have maintained market stability.
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