Unveiling the Unseen Illness: Public Health Warnings and Heat Stroke

Lester Lusher and Tim Ruberg

No 11772, CESifo Working Paper Series from CESifo

Abstract: We utilize region-day variation in actual vs. forecasted weather conditions (i.e. forecasting errors) to comprehensively investigate the effects of the first heat-health warning system in Japan. We find that heat alerts led to a 17% increase in heat stroke counts. An analysis of mechanisms suggests this is primarily driven by increased reporting, as opposed to potential “adverse” behavioral responses or substitution in health diagnoses. Four times as many heat strokes are detected in low-income neighborhoods compared to high-income neighborhoods. We further document evidence of avoidance behaviors (e.g. electricity usage), but find no evidence of improved (or worsened) mortality outcomes.

Keywords: heat stroke; climate change; warning effectiveness; avoidance behavior (search for similar items in EconPapers)
JEL-codes: D90 I12 I18 Q54 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:ces:ceswps:_11772

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