Research Question: How
does the geography of innovation respond to changes in economic
fundamentals, and what are the consequences for aggregate growth and
welfare?
Methodological Contributions:
(1) Introduce endogenous, directed, and microfounded innovation in
a
dynamic spatial model;
(2) Decompose the welfare impacts
from shocks to fundamentals into
transitory and long-run growth
components
Research Question: How
has the geography of U.S. innovation changed over time and what are the
main drivers of this trend?
Dynamic Spatial
Equilibrium
(joint with Ivan Rudik, Gary Lyn,
Ariel Ortiz-Bobea)
R&R, Journal of
Political Economy: Macroeconomics
Research Question: What are the welfare effects
of general equilibrium adaptation via trade and migration in response to
climate change?
Methodological Contributions:
(1)
Model-consistent estimating equations to identify climate impacts on
productivity and amenities from temperature shocks;
(2)
Quantitative decomposition of general equilibrium adaptation channels
(trade, migration, industry switching) to shocks in fundamentals in a
dynamic spatial model
(joint with Bernardo Ribeiro, Anh
Tran)
Research
Question: Why are newer technology vintages
disproportionately created in high-skill regions?
Methodological Contribution: Introduce technology
vintages in a
dynamic spatial model with endogenous and directed
innovation
Research Question: What drives the rising intensity of
cross-region
coinventor networks and what are the aggregate
implications?