The Economic Impact of Low- and High-Frequency Temperature Changes

Nikolay Gospodinov, Ignacio Lopez Gaffney and Serena Ng

Papers from arXiv.org

Abstract: Temperature data have low- and high-frequency variations that may have distinct impacts on economic outcomes. Analyzing data from a panel of 48 states in the U.S., and a panel of 50 countries, we find slowly evolving, low-frequency components with periodicity greater than 32 years. These components have a common factor that trended up around the same time that economic growth slowed. Panel regressions using U.S. data fail to find a statistically significant impact of low-frequency temperature changes on growth, though the impact of high-frequency temperature changes is marginally significant. However, using the international panel (which includes several European countries), we find that a 1{\deg}C increase in the low-frequency component is estimated to reduce economic growth by about one percent in the long run. Though the first-order effect of high frequency changes is not statistically significant in this data, a smaller non-linear effect is detected. Our estimation and inference procedures control for common, business cycle variations in output growth that are not adequately controlled for by an additive fixed effect specification. These findings are corroborated by time series estimation using data at the unit and national levels.

Date: 2025-05
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