Working Papers


Trade and inequality across local labor markets: The margins of adjustment

with Ryan Kim, September 2018

Tradability and the Labor-Market Impact of Immigration: Theory and Evidence from the U.S.” (including Online Appendix)

with Ariel Burstein, Gordon Hanson, and Lin Tian, November 2018

Revised and resubmitted to Econometrica

Presentation slides (November 2018)


“Factor Prices and International Trade: A Unifying Perspective”

with Ariel Burstein, October 2011 (1st draft June 2010)

Largely absorbed into “International Trade, Technology, and the Skill Premium”

Previously circulated under the name “International Trade Patterns, the Skill Premium, and Heterogeneous Firms”


Published and Forthcoming Papers

(Published versions have been posted with permission of the journals where they appeared. Standard copyrights rules apply. Download and print for personal use only.)


Changes in between-group inequality: computers, occupations, and international trade

with Ariel Burstein and Eduardo Morales

Forthcoming in American Economic Journal: Macroeconomics

International Trade, Technology, and the Skill Premium

with Ariel Burstein

Presentation slides

Journal of Political Economy, 2017, Vol. 125, No. 5: 1356-1412.


Comparative Advantage and Optimal Trade Policy

with Arnaud Costinot, Dave Donaldson, and Iván Werning

Presentation slides

Quarterly Journal of Economics, 2015, Vol. 130, Issue 2: 659-702.


Beyond Ricardo: Assignment Models in International Trade

with Arnaud Costinot

Online Appendix

Annual Review of Economics, 2015, Vol. 7: 31-62.


Importing Skill-Biased Technology”         

with Ariel Burstein and Javier Cravino

Online Addendum

Presentation slides

American Economic Journal: Macroeconomics, 2013, Vol. 5, No. 2: 32-71.


An Elementary Theory of Global Supply Chains

with Arnaud Costinot and Su Wang

Online Addendum

Presentation slides

Review of Economic Studies, 2013, Vol. 80, Issue 1: 109-144.


Global Supply Chains and Wage Inequality

with Arnaud Costinot and Su Wang

Presentation slides

American Economic Review Papers and Proceedings, 2012, Vol. 102, No. 3: 396-401.


 “Spatial Price Discrimination with Heterogeneous Firms 

Journal of Industrial Economics, 2011, Vol. 59, No. 4: 661-676.


Matching and Inequality in the World Economy

with Arnaud Costinot

Presentation slides

Journal of Political Economy, 2010, Vol. 118, No. 4: 747-786.


Spatial Competition with Heterogeneous Firms

Presentation slides


Journal of Political Economy, 2008, Vol. 116, No. 3: 423-466.


Institutions and Moral Hazard in Open Economies

Journal of International Economics, 2007, Vol. 71, No. 2: 495-514.