Strategic Formulary Design in Medicare Part D Plans
Year: 2018
Type: article
Abstract: The design of Medicare Part D causes most beneficiaries to receive fragmented health insurance, with drug and medical coverage separated. Fragmentation is potentially inefficient since separate insurers optimize over only one component of healthcare spending, despite complementarities and substitutabilities between healthcare types. Fragmentation of only some plans can also lead to market distortions due to differential adverse selection, as integrated plans may use drug formularies to induce enrollment by patients that are profitable in the medical insurance market. We study the design of insurance plans in Medicare Part D, and find that formularies reflects these two differences in incentives.
DOI: 10.1257/pol.20160248
Authors: Kurt Lavetti, Kosali Simon
Language: English
Subfield: Economics and Econometrics
Domain: Social Sciences
Open Access status: green
Funder: National Institute on Aging
OpenAlex ID: W2422355776
