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


Private Versus Public Provision of Social Insurance: Evidence from Medicaid (with Tim Layton, Nicole Maestas, and Daniel Prinz)

Revise and Resubmit (2nd round), AEJ: Economic Policy

(Originally Released as NBER Working Paper #26042)

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

The Behavioral Foundations of Default Effects: Theory and Evidence from Medicare Part D (with Zarek Brot-Goldberg, Tim Layton, and Adelina Yanyue Wang)

Revise and Resubmit, American Economic Review

(Originally Released as NBER Working Paper #28331)

Efficiency Gains Under Incomplete Contracting: Evidence from Medicaid

Cost-Sharing Among Those Who Can't Pay: The Impact of Medicaid Disenrollments (with Zarek Brot-Goldberg and Pauline Mourot) New draft coming soon!


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

How Are Part D Plans Different? Evidence from Randomly Assigned Enrollees (with Tim Layton, Daniel Prinz, and Anna Zink)

Grading State Medicaid Programs (with Tim Layton, Nicole Maestas, Daniel Prinz, and Mark Shepard)

Rationing Medicine Through Paperwork: Prior Authorization Restrictions in Medicare (with Zarek Brot-Goldberg, Tim Layton, and Sam Burn)