Article: Externalities and Taxation of Supplemental Insurance: A Study of Medicare and Medigap.
American economic journal. Applied economics
2024 Volume 11, Issue 2, Page(s) 37–73
Abstract: Most health insurance uses cost-sharing to reduce excess utilization. Supplemental insurance can blunt the impact of this cost-sharing, increasing utilization and exerting a negative externality on the primary insurer. This paper estimates the effect of ... ...
| Abstract | Most health insurance uses cost-sharing to reduce excess utilization. Supplemental insurance can blunt the impact of this cost-sharing, increasing utilization and exerting a negative externality on the primary insurer. This paper estimates the effect of private Medigap supplemental insurance on public Medicare spending using Medigap premium discontinuities in local medical markets that span state boundaries. Using administrative data on the universe of Medicare beneficiaries, we estimate that Medigap increases an individual's Medicare spending by 22.2 percent. We calculate that a 15 percent tax on Medigap premiums generates savings of $12.9 billion annually with a standard error of $4.9 billion. |
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| Language | English |
| Publishing date | 2024-02-28 |
| Publishing country | United States |
| Document type | Journal Article |
| ZDB-ID | 2452635-6 |
| ISSN | 1945-7790 ; 1945-7782 |
| ISSN (online) | 1945-7790 |
| ISSN | 1945-7782 |
| DOI | 10.1257/app.20160350 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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