NBER Working Papers and Publications
|October 2016||When Discounts Raise Costs: The Effect of Copay Coupons on Generic Utilization|
with Christopher Ody, Matthew Schmitt: w22745
Published: Leemore Dafny & Christopher Ody & Matt Schmitt, 2017. "When Discounts Raise Costs: The Effect of Copay Coupons on Generic Utilization," American Economic Journal: Economic Policy, vol 9(2), pages 91-123. citation courtesy of
|March 2016||The Price Effects of Cross-Market Hospital Mergers|
with Kate Ho, Robin S. Lee: w22106
Published: Leemore Dafny, Kate Ho, Robin S. Lee. "The price effects of cross‐market mergers: theory and evidence from the hospital industry." Rand Journal of Economics, Volume 50, Issue 2 Summer 2019 Pages 286-325
|May 2014||More Insurers Lower Premiums: Evidence from Initial Pricing in the Health Insurance Marketplaces|
with Jonathan Gruber, Christopher Ody: w20140
Published: Leemore Dafny & Jonathan Gruber & Christopher Ody, 2015. "More Insurers Lower Premiums," American Journal of Health Economics, vol 1(1), pages 53-81.
|July 2012||Does it Matter if Your Health Insurer is For-Profit? Effects of Ownership on Premiums, Insurance Coverage, and Medical Spending|
with Subramaniam Ramanarayanan: w18286
Published: Leemore Dafny, 2019. "Does It Matter if Your Health Insurer Is For Profit? Effects of Ownership on Premiums, Insurance Coverage, and Medical Spending," American Economic Journal: Economic Policy, vol 11(1), pages 222-265.
|March 2012||Private Health Insurance Markets|
NBER Reporter 2012 number 1
|January 2010||Let them Have Choice: Gains from Shifting Away from Employer-Sponsored Health Insurance and Toward an Individual Exchange|
with Katherine Ho, Mauricio Varela: w15687
Published: Leemore Dafny & Kate Ho & Mauricio Varela, 2013. "Let Them Have Choice: Gains from Shifting Away from Employer-Sponsored Health Insurance and toward an Individual Exchange," American Economic Journal: Economic Policy, American Economic Association, vol. 5(1), pages 32-58, February. citation courtesy of
|October 2009||Paying a Premium on Your Premium? Consolidation in the U.S. Health Insurance Industry|
with Mark Duggan, Subramaniam Ramanarayanan: w15434
Published: Leemore Dafny & Mark Duggan & Subramaniam Ramanarayanan, 2012. "Paying a Premium on Your Premium? Consolidation in the US Health Insurance Industry," American Economic Review, American Economic Association, vol. 102(2), pages 1161-85, April. citation courtesy of
|September 2009||The Impact of Tort Reform on Employer-Sponsored Health Insurance Premiums|
with Ronen Avraham, Max M. Schanzenbach: w15371
Published: “The Impact of Tort Reform on Employer-Sponsored Health Insurance Premiums,” with Ronen Avraham and Max Schanzenbach, Journal of Law, Economics, and Organizations, October 2012, 28(4).
|December 2008||Are Health Insurance Markets Competitive?|
|August 2006||Regulatory Exploitation and the Market for Corporate Controls|
with David Dranove: w12438
Published: Leemore Dafny & David Dranove, 2009. "Regulatory Exploitation and Management Changes: Upcoding in the Hospital Industry," Journal of Law & Economics, University of Chicago Press, vol. 52(2), pages 223-250, 05.
|October 2005||Estimation and Identification of Merger Effects: An Application to Hospital Mergers|
Published: Leemore Dafny, 2009. "Estimation and Identification of Merger Effects: An Application to Hospital Mergers," The Journal of Law and Economics, vol 52(3), pages 523-550.
|June 2005||Do Report Cards Tell Consumers Anything They Don't Already Know? The Case of Medicare HMOs|
with David Dranove: w11420
Published: Dafny, Leemore and David Dranove. “Do Report Cards Tell Consumers Anything They Don’t Already Know? The Case of Medicare HMOs.” The RAND Journal of Economics 39, 3 (Autumn 2008): 790-821. citation courtesy of
|September 2003||How Do Hospitals Respond to Price Changes?|
Published: Dafny, Leemore S. "How Do Hospitals Respond to Price Changes?" American Economic Review 95, 5 (December 2005): 1525-1547.
|July 2003||Entry Deterrence in Hospital Procedure Markets: A Simple Model of Learning-By-Doing|
|February 2000||Does Public Insurance Improve the Efficiency of Medical Care? Medicaid Expansions and Child Hospitalizations|
with Jonathan Gruber: w7555
Published: "Public Insurance and Child Hospitalizations: Access and Efficiency Effects," Journal of Public Economics, 2005, 89(1): 109-129