Working Papers

The Welfare Cost of Asymmetric Information: Evidence from the U.K. Annuity Market
July 2007. NBER Working Paper 13228 (with Liran Einav and Paul Schrimpf).

EZ-Tax: Tax Salience and Tax Rates
December 2007.  An older version is available as NBER Working Paper 12924.

Input and Technology Choices in Regulated Industries: Evidence from the Health Care Sector
May 2006. NBER Working Paper 12254 (with Daron Acemoglu).

Redistribution by Insurance Market Regulation: Analyzing a Ban on Gender-Based Retirement Annuities
May 2006. NBER Working Paper 12205 (with James Poterba and Casey Rothschild).  Review and resubmit requested, Journal of Financial Economics.

Testing for Adverse Selection with Unused 'Observables'
March 2006. NBER Working Paper 12112 (with James Poterba).

When Can Partial Public Insurance Produce Pareto Improvements
July 2002. NBER Working Paper 9035.