Publications

Foreign and Domestic Firms: Long Run Employment Effects of Export Opportunities (with Brian McCaig and Nina Pavcnik)

          NBER Working Paper 30729, CEPR Discussion Paper 19903, STEG Working Paper 45, CESifo Working Paper 10168

          Accepted, The Review of Economics and Statistics

          Media: VoxDevTalks Podcast

Global-TRANSIT: Modeling Global Historic Sailing Using A Least-Cost Surface Analysis (with Lucinda Roberts and Joanna Merson)

          Cartography and Geographic Information Science (2025): 1-19. [Code]

Entrepôt: Hubs, Scale, and Trade Costs (with Sharat Ganapati and Oren Ziv)          

          American Economic Journal: Macroeconomics 16.4 (2024): 239–78. [Code] [Route-Level Trade Cost Data] [ReadMe]

          Media: AP News, Trade Talks, Vox.com,  Washington Post, Fortune, Quartz, Trade Winds, USA Today, World Bank Transport for Development 

How Far Goods Travel: Global Transport and Supply Chains from 1965-2020  (with Sharat Ganapati)

          Journal of Economic Perspectives 37.3 (2023): 3-30. [Lead Article] [Code]

          Media: Wall Street Journal, Supply Chain Digest, VoxEU 

The Round Trip Effect: Endogenous Transport Costs and International Trade

          American Economic Journal: Applied Economics 14.4 (2022): 127-66. [Code]

          Winner, 2019 Sundaran Memorial Prize for Young Malaysian Researchers by the World Bank

          Media: Trade Talks, Trade Winds 

The Role of Non-Discrimination in a World of Discriminatory Preferential Trade Agreements (with Kamal Saggi and Halis Murat Yildiz)

          Canadian Journal of Economics 55.1 (2022): 174-212. 

Should the WTO Require Free Trade Agreements to Eliminate Internal Tariffs? (with Kamal Saggi and Halis Murat Yildiz)

          Journal of International Economics 118 (2019): 316-330. 

          Media: InsTED Column

Working Papers

Multimodal Transport Networks (with Simon Fuchs)

         CEPR Working Paper DP19531, Atlanta Fed Working Paper 2022-13, CESifo Working Paper 11362

         Media: NPR Marketplace (Oct 2024), KPTV, NPR Marketplace (Jan 2025) 

Free Rider Effect and Market Power in Trade Agreements 

          CESifo Working Paper 10767

Works in Progress

Evaluating Transportation Improvements Quantitatively: A Primer (with Treb Allen and Simon Fuchs) [Slides]

Transshipment Hubs, Trade, and Supply Chains (with Anh Do, Sharat Ganapati, and Oren Ziv)

The Long-Run Relationship between Trade and Growth of Cities (with Bruce Blonigen)

Monopoly on the High Seas: Endogenous Trade Costs (with Philipp Ludwig, Sharat Ganapati and Oren Ziv) 

Container Ports (with Philip Economides and Simon Fuchs)