Using both the onset of the US-China trade war in 2018 and the most recent Russia-Ukraine war and associated trade tensions, we show a counterintuitive pattern in global trade. Namely, while the average firm trading with these nations significantly decreases their trade with these jurisdictions...

In December 2022, following Russia's invasion of Ukraine, a G7-led coalition of countries imposed a $60 per barrel price cap on the sales of Russian oil that use western services. This paper provides a theoretical and quantitative analysis of this new tool. We build a tractable equilibrium model...

We develop a dynamic spatial general equilibrium model with forward-looking investment and migration decisions. We characterize analytically the transition path of the spatial distribution of economic activity in response to shocks. We apply our framework to the reallocation of US economic...

Empirical research on cities starts with a spatial equilibrium condition: workers and firms are assumed to be indifferent across space. This condition implies that research on cities is different from research on countries, and that work on places within countries needs to consider population,...