Verifying Exchange Rates , with Jeffrey Frankel, Sergio Schmukler and Luis Servén, published as a World Bank Working Paper (World Bank Working Paper series, paper number 2397). Published in the Journal of Development Economics, Volume 66, Issue 2, December 2001, pages 351-386.
 

The Social Impact of the Earned Income Tax Credit, mimeo, HEC Montreal, December 2003.

A Dynamic Model of Amniocentesis Choice, with V. Joseph Hotz and Seth Sanders, mimeo, April 2002. Presented at the 2002 Annual Meeting of the Population Association of America.

Information, Tax Preparation Services and Participation in the Earned Income Tax Credit, mimeo, HEC Montreal, February 2004.