Legal and illegal markets often coexist. In theory, marginal legalization can either substitute for the remaining parallel market, or complement it via scale effects. I study migrants crossing without prior authorization at the US southwest border, where large-scale unlawful crossing coexists...

The structure of demand plays a fundamental role in shaping economic equilibrium. In computable general equilibrium analysis, comparative statics allow us to simulate how policies or external adjustments impact the equilibrium state. The results of these simulations are significantly influenced...

We develop a dynamic general equilibrium model to quantify the interaction between climate policy, industry dynamics, and the elasticity of substitution between clean and dirty energy in the economy. The model incorporates empirical observations that firms differ substantially in their potential...