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The Behavioral Foundations of Default Effects: Theory and Evidence from Medicare Part D 

With Zarek Brot-Goldberg, Tim Layton, and Adelina WangAmerican Economic Review, forthcoming

Media Coverage: Commonwealth Fund

Private Versus Public Provision of Social Insurance: Evidence from Medicaid

With Tim Layton, Nicole Maestas, and Daniel Prinz, AEJ: Economic Policy, 2022, 14: 397-431

Media Coverage: NBER Digest, Brookings, VoxEU, CATO Institute

The Consequences of Health Care Privatization: Evidence from Medicare Advantage Exits 

With Mark Duggan and Jon Gruber, AEJ: Economic Policy, 2018, 10: 153-186. 

Media Coverage: New York Times, Academy Health, NBER Digest

Awards: 2019 NIHCM Finalist

Who Benefits When the Government Pays More? Pass-Through in the Medicare Advantage Program

With Mark Duggan and Amanda Starc, Journal of Public Economics, 2016, 141: 50-67.

Media Coverage: Los Angeles Times, Bloomberg, Modern Healthcare, Marginal Revolution, Knowledge at Wharton, Health Affairs Blog


Rationing Medicine Through Paperwork: Prior Authorization Restrictions in Medicare

With Zarek Brot-Goldberg, Sam Burn, and Tim Layton

Revise and Resubmit, American Economic Review

Media Coverage: Medscape, AEIdeas

The Value of Improving Insurance Quality: Evidence from Long-Run Medicaid Attrition (with Ajin Lee)

Revise and Resubmit, Journal of Health Economics

Efficiency Gains Under Incomplete Contracting: Evidence from Medicaid



Enrollment, Utilization, and Fiscal Costs in Medicare Advantage vs Traditional Medicare  (with Scott Bilder, Zarek Brot-Goldberg, Barton Jones, Iman Mohammadi, Zulkarnain Pulungan, Yalun Su, and Christie Teigland)

How Do Medicaid and Medicare Compare? Evidence from Dual-Eligible Enrollees (with Tim Layton, Nicole Maestas, Daniel Prinz, and Mark Shepard)

Grading State Medicaid Programs: Investigating Cross-State Program Differences (with Tim Layton, Nicole Maestas, Daniel Prinz, and Mark Shepard)

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