Research

Publications

"Competition in Health Insurance Markets," (May 2009), forthcoming in The American Economic Review. Online Appendix here.

"Estimation and Identification of Merger Effects: An Application to Hospital Mergers," forthcoming in The Journal of Law & Economics, August 2009, Vol. 52

"Do Report Cards Tell Consumers Anything They Don't Already Know? The Case of Medicare HMOs," with David Dranove, The RAND Journal of Economics, Autumn 2008, 39(3): 790-821

"Regulatory Exploitation and the Market for Corporate Control," with David Dranove, forthcoming in The Journal of Law & Economics

“How Do Hospitals Respond to Price Changes?” American Economic Review, December 2005, 95(5): 1525-1547.

“Games Hospitals Play: Entry Deterrence in Hospital Procedure Markets,” Journal of Economics and Management Strategy, Fall 2005, 14(3): 513-542.

“Public Insurance and Child Hospitalizations: Access and Efficiency Effects,” with Jonathan Gruber, Journal of Public Economics, 2005, 89(1): 109-129

Working Papers

"Paying a Premium on Your Premium? Consolidation in the U.S. Health Insurance Industry" NBER Working Paper 15434, October 2009, with Mark Duggan and Subramaniam Ramanarayanan

“The Impact of Tort Reform on Enployer-Sponsored Health Insurance Premiums,” NBER Working Paper 15371, September 2009, with Ronen Avraham and Max Schanzenbach

Research in Progress

“Welfare Consequences of Health Plan Choice by Employers Rather than Employees,” with Katherine Ho and Mauricio Varela, coming soon

“Multimarket Contact Among Private Health Insurers”

“What Explains the Rise in Self-Insured Employer Healthplans?”, with Kosali Simon