Research

"Bounding High Dimensional Comparative Statics"
Econometrica (Revise and Resubmit)

I derive novel, sharp bounds on comparative statics that depend only on low dimensional sufficient statistics and are analytically simpler.  I require only that the Jacobian is diagonally dominant, which is widely satisfied in economics. I use the results to bound peer effects and the gains from trade liberalizations without bilateral network or trade data.

"Diet, Economic Development and Climate Change", with Lucas Correa and Heitor Pellegrina
The Economic Journal (Revise and Resubmit) OSF Preprint

We incorporate the nutrition transition and agricultural modernization into a quantitative trade model, quantify their implications for GHG emissions, and simulate diet and trade policy responses. 

"A Many-Location Home Market Effect and a Home Biased Geography"
Journal of International Economics (Mar, 2025)

Developed in the 1980s, the Home Market Effect predicts net exports in industries with large domestic demand. Yet theoretically this relation has been mostly confined to two-location or symmetric models. I generalize this to arbitrary geographies and reveal a novel connection with a home biased geography.

"Ride-Sharing and the Geography of Consumption Industries", with Heyu Xiong
The Economic Journal (Aug, 2023)

Exploiting both the staggered entry across cities and the precise geographic boundary of Uber services, we find that Uber’s entry into a city caused significant growth in the consumption industries. We provide evidence consistent with Uber increasing consumer mobility by reducing the economic cost of travel.