Pablo Fajgelbaum, Eduardo Morales, Juan Carlos Suarez Serrato, and I have a new paper on the impact of state taxes on the US economy. Here is the abstract:
We study state taxes as a potential source of spatial misallocation in the United States. We build a spatial general-equilibrium model in which the distribution of workers, firms, and trade flows across states responds to state taxes and public-service provision. We estimate firm and worker mobility elasticities and preferences for public services using data on the distribution of economic activity and state taxes from 1980 to 2010. A revenue-neutral tax harmonization leads to aggregate real-GDP and welfare gains of 0.7%. Tax cuts by individual states lower own-state tax revenues and economic activity, and generate cross-state spillovers depending on trade linkages.