Patrick Farrell

pwf2108 at columbia dot edu

I am a PhD candidate in economics at Columbia University. I defended my dissertation in November 2026, and my degree will be conferred in February 2027. I am interested in urban and spatial economics, international trade, and economic development.

You can find my CV here.

Papers

Working Papers

Populations in Spatial Equilibrium, with Matthew Easton. November 2025.
[PDF]
Quality Upgrading in Global Supply Chains: Evidence from Colombian Coffee, with Rocco Macchiavello (r) Josepa Miquel-Florensa (r) Nicolás de Roux (r) Eric Verhoogen (r) Mario Bernasconi. December 2025.
[PDF] Revise and resubmit, Quarterly Journal of Economics.
NBER #34610, CEPR #20981, VoxDev column.

Work in Progress

Learning and Sharing in Manufacturing, with Xiqian Cai, David Fu, and Eric Verhoogen.
Quality Complementarities and Pass-Through, with David Atkin, Azam Chaudhry, Shamyla Chaudry, Amit K. Khandelwal, Danial Lashkari, Tariq Raza, and Eric Verhoogen.
The Boroughs were Burning: Public Services and Change in Cities.
Export Restrictions as Industrial Policy.

Published Papers

Social Connectedness in Urban Areas, with Michael Bailey, Theresa Kuchler, and Johannes Stroebel. Journal of Urban Economics, volume 118, 2020.
[Link]

Teaching

As instructor

Princeton SPIA MPA/PhD Math Camp. Summer 2022, 2023, 2024, 2025, 2026.

As teaching fellow

Economic Growth and Development. Fall 2022, for Professor Xavier Sala-i-Martin.

International Trade. Spring 2023, for Professor Waseem Noor