Working Papers
European Immigrants and the Rise of the United States to the Technological Frontier (with Lee, Peters)
Optimal City Structure (with Allen, Li). PRELIMINARY. First Version: 07/15
Combinatorial Discrete Choice (with Eckert, Shi). First version 04/21.

Submitted Papers or Under Revision

Clean Growth (with Walsh). More Supplementary Material, Replication Package New 08/23 
Spatial Production Networks (with Hunneus, Miyauchi). New 01/23
Aggregate Implications of Firm Heterogeneity: A Nonparametric Analysis of Monopolistic Competition Trade Models (with Adao, Ganapati)
On the Equilibrium Properties of Models with Heterogeneous Agents (with Allen, Li) More previously circulated as “On the Existence and Uniqueness of Trade Equilibria“ 12/21
General Equilibrium Effects in Space: Theory and Measurement (with Adao, Esposito)  More  Previous version: Spatial Linkages Global Shocks and Local Labor Markets 12/21
A Multivariate Distribution with Pareto Tails and Pareto Maxima (with Rodriguez-Clare, Jiun-Hua Su)

Publications

Supply and Demand in Space (with Allen) forth, Journal of Economic Perspectives. New 03/23
The Welfare Effects of Transportation Infrastructure Improvements (with Allen), Review of Economic Studies, 89(6), 2911-2957
Firm Dynamics and Trade (with Alessandria, Ruhl) forth. Annual Review of Economics
The Extensive Margin of Exporting Products: A Firm-Level Analysis (with Muendler, Ganapati), forth. AEJ Macro. More Related: NBER WP 16641, Online Supplement, The Continuum Case
Universal Gravity (with Allen, Takahashi), Journal of Political Economy, 2020, 128(2), 393-433. More Related: NBER WP 20787,  Online Appendix, Capital Dynamics, Matlab Toolkit
The Elusive Pro-Competitive Effects of Trade (with Costinot, Donaldson, Rodriguez-Clare), Review of Economic Studies, 2019, 86(1), 46-80. More Related: NBER WP 21370, Codes, Gains: Simple Example
Innovation and Production in the Global Economy (with Ramondo, Rodriguez-Clare, Yeaple), American Economic Review, 2018, 108(8), 2128-73, More Related: NBER WP 18792, online appendix
Firm Learning and Growth (with Papageorgiou, Timoshenko), Review of Economic Dynamics, 2018, 27, 146-168.
A Unified Theory of Firm Selection and Growth, Quarterly Journal of Economics, 2016, 131(1), 89-155. More Related: NBER WP 17553, Theory, Data, More data
Trade and the Topography of the Spatial Economy (with Allen) Quarterly Journal of Economics, 2014, 129(3), More Related: NBER WP 19181, online appendix, Erratum, Replication files.
New Trade Models, Same Old Gains? (with Costinot, Rodriguez-Clare), American Economic Review, 2012, 102(1), 94-130. More Related: NBER WP 15628, (online appendix)
Market Penetration Costs and the New Consumers Margin in International Trade, Journal of Political Economy, 2010, 118 (6), 1151-1199. More Related: NBER WP 14214, (Appendix: theory, data, programs)
Exporters and Their Products: A Collection of Empirical Regularities (with Muendler), CESifo Economic Studies, 2013, 59(2), 223-248.
Vertical Specialization and International Business Cycles Synchronization (with Ramanarayanan), Scandinavian J. of Economics, Sp. Issue on Heterogeneity & Trade, 2009,111(4),665-680. More Related: Online Appendix
Endogenous Variety and the Gains from Trade (with Klenow, Demidova, Rodriguez-Clare), American Economic Review Papers & Proceedings, 2008, 98 (4), 444-450. More Related: NBER WP 13933, Welfare in Krugman model, Detailed Derivations