The Dynamics of Behavioral Responses During a Crisis

Corinna Hartung, Gregory Veramendi and Joachim Winter
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Corinna Hartung: LMU Munich
Joachim Winter: LMU Munich

No 333, Rationality and Competition Discussion Paper Series from CRC TRR 190 Rationality and Competition

Abstract: This paper investigates the dynamics of behavioral changes during a crisis. We study this in the context of the first year of the Covid-19 pandemic, where behavioral responses were important in mitigating the costs of the pandemic. To identify behavioral responses to unanticipated and transient health risk shocks, we combine high-frequency cellphone mobility data with detailed incidence data in Germany. Using an event-study design on local outbreaks, we find that county-level mobility immediately and significantly decreased by about 2.5% in response to an outbreak independent of non-pharmaceutical interventions. We also find that the reproduction rate decreased by about 17% in response to a local outbreak. Both behavioral responses are quite persistent even after the relative health risk has dissipated. By the time of the second wave, the behavioral response to a second or third shock is small or negligible. Our results demonstrate the importance of (1) integrating behavioral persistence in models used to study behavior and policies that change behavior, (2) the effectiveness of policies that provide high-frequency localized information on health risks, and (3) the potential persistence of behavioral changes after the Covid-19 pandemic has passed.

Keywords: dynamics; behavioral response; crisis; covid-19 (search for similar items in EconPapers)
JEL-codes: D90 H12 I12 I18 (search for similar items in EconPapers)
Date: 2022-08-15
New Economics Papers: this item is included in nep-hea
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