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Working Paper
Understanding Climate Damages: Consumption versus Investment
Existing climate-economy models use aggregate damage functions to model the effects of climate change. This approach assumes climate change has equal impacts on the productivity of firms that produce consumption and investment goods or services. We show the split between damage to consumption and investment productivity matters for the dynamic consequences of climate change. Drawing on the structural transformation literature, we develop a framework that incorporates heterogeneous climate damages. When investment is more vulnerable to climate, we find short-run consumption losses will be ...
Working Paper
Long-Term Macroeconomic Effects of Climate Change: A Cross-Country Analysis
We study the long-term impact of climate change on economic activity across countries, using a stochastic growth model where labor productivity is affected by country-specific climate variables?defined as deviations of temperature and precipitation from their historical norms. Using a panel data set of 174 countries over the years 1960 to 2014, we find that per-capita real output growth is adversely affected by persistent changes in the temperature above or below its historical norm, but we do not obtain any statistically significant effects for changes in precipitation. Our counterfactual ...
Working Paper
Climate Policy and the Long-Run Interest Rate: Insights from a Simple Growth Model
We study the impact of climate policy on the long-run real interest rate in a tractable climate-economy model based on the work of Golosov et al. (2014). When the growth rate of the carbon tax exceeds the growth rate of the price of at least one type of fossil energy, the tax reduces the long-run growth rates of consumption and investment, pushing the interest rate up. We find that if fossil energy prices are constant, a carbon tax that grows at 3.5 percent per year decreases the long-run interest by over 50 basis points. This carbon tax growth rate achieves net zero emissions at the lowest ...
Working Paper
Temperature and Growth: A Panel Analysis of the United States
We document that seasonal temperatures have significant and systematic effects on the U.S. economy, both at the aggregate level and across a wide cross-section of economic sectors. This effect is particularly strong for the summer: a 1 degree F increase in the average summer temperature is associated with a reduction in the annual growth rate of state-level output of 0.15 to 0.25 percentage points. We combine our estimates with projected increases in seasonal temperatures and find that rising temperatures could reduce U.S. economic growth by up to one-third over the next century.