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12:30 - 13:30 9 December 2014

Plan switching and inertia in Medicare Part D: Evidence from administrative data

Location

IFS Seminar Room | Institute for Fiscal Studies (link Map)
7 Ridgmount Street | London | WC1E 7AE | United Kingdom

Open to: Academic | Student
Ticketing: Open

Speaker information

Joachim Winther, Munich

The trend towards giving consumers choice about their health plans has invited research on how good they actually are at making these decisions. The introduction of Medicare Part D is an important example. Initial plan choices in this market were generally far from optimal. In this paper, we focus on plan choice in the years after initial enrollment. Due to changes in plan supply, consumer health status, and prescription drug needs, consumers’ optimal plans change over time. However, in Medicare Part D only about 10% of consumers switch plans every year, and on average, plan choices worsen for those who do not switch. We develop a two-stage panel data model of plan choice whose stages correspond to two separate reasons for inertia: inattention and switching costs.


Contact

Institute for Fiscal Studies
020 7291 4800


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