ArticleAmerican economic journal. Applied economics2019
Externalities and Taxation of Supplemental Insurance: A Study of Medicare and Medigap.
Article in American economic journal. Applied economics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed.
- Medigap Regulations Provide Protections For Beneficiaries, Especially After Health Shocks, But May Raise Premiums.Health affairs (Project Hope) · 2025Article
- Trends in Plan Offerings, Enrollment, and Premiums in Medicare Advantage and Medigap.Health services research · 2025Article
- Effects of private health insurance on healthcare services during the MERS Pandemic: Evidence from Korea.Heliyon · 2023Article
- Pricing regulations in individual health insurance: Evidence from Medigap.Journal of health economics · 2023Article
- The Demand for Insurance and Rationale for a Mandate: Evidence from Workers' Compensation Insurance.The American economic review · 2022Article
- Estimating the Value of Public Insurance Using Complementary Private Insurance.American economic journal. Economic policy · 2019Article
- Externalities and Taxation of Supplemental Insurance: A Study of Medicare and Medigap.American economic journal. Applied economics · 2019Article
- Medical Care Spending and Labor Market Outcomes: Evidence from Workers' Compensation Reforms.The American economic review · 2018Article
- Supplemental Insurance and Racial Health Disparities under Medicare Part B.Health services research · 2017Article
- THE EFFECT OF INSURANCE COVERAGE ON PREVENTIVE CARE.Economic inquiry · 2017Article
- Medicare reimbursement and orthopedic surgery: past, present, and future.Current reviews in musculoskeletal medicine · 2017Review
- Cost-sharing, physician utilization, and adverse selection among Medicare beneficiaries with chronic health conditions.Medical care research and review : MCRR · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
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.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.