How Does Supplemental Medicare Coverage Affect the Disabled Under-65 Population?: An Exploratory Analysis of the Health Effects of States’ Medigap Policies for SSDI Beneficiaries

Philip Armour and Claire O’Hanlon

No 25564, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: A substantial portion of the costs associated with, and the value to beneficiaries of, Social Security Disability Insurance is Medicare eligibility. However, the benefits of this eligibility can vary due to differences in state policies on supplemental Medicare coverage, also known as Medigap. Although Medigap policies are federally regulated to be issued to 65-and-over Medicare beneficiaries with specific restrictions over underwriting, these policies are left to states to regulate with regard to the under-65 SSDI population, generating substantial cross-state and temporal variation. This paper documents the variation in availability and generosity of under-65 Medigap eligibility for the SSDI population. Furthermore, it exploits this variation to provide initial estimates of how this eligibility affects the health status of non-Medicaid-eligible SSDI recipients. Our main finding is that requiring Medigap plans be offered for under-65 SSDI recipients substantially improves self-reported health of this population, with suggestive evidence that this improvement is stronger as underwriting restrictions increase and among SSDI beneficiaries with mental health conditions. The estimated effect is highly robust to alternative scaling or categorizations of self-reported health, choice of data set, inclusion of fixed effects, controls for local Medicare Advantage penetration, and falsification tests. This effect is nearly three times the size of the estimated increase in self-reported health in the Oregon Medicaid expansion.

JEL-codes: H51 H55 I13 J14 (search for similar items in EconPapers)
Date: 2019-02
New Economics Papers: this item is included in nep-age, nep-hea and nep-ias
Note: EH AG
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