NBER

Nora Lamersdorf

Goethe University Frankfurt
Theodor W. Adorno Platz 3
Frankfurt am Main, 60323
Germany

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org
Institutional Affiliation: Goethe University Frankfurt

NBER Working Papers and Publications

May 2020Social Interactions in Pandemics: Fear, Altruism, and Reciprocity
with Laura Alfaro, Ester Faia, Farzad Saidi: w27134
In SIR models, homogeneous or with a network structure, infection rates are assumed to be exogenous. However, individuals adjust their behavior. Using daily data for 89 cities worldwide, we document that mobility falls in response to fear, as approximated by Google search terms. Combining these data with experimentally validated measures of social preferences at the regional level, we find that stringency measures matter less if individuals are more patient and altruistic preference traits, and exhibit less negative reciprocity community traits. We modify the homogeneous SIR and the SIR-network model to include agents' optimizing decisions on social interactions. Susceptible individuals internalize infection risk based on their patience, infected ones do so based on their altruism, and re...

National Bureau of Economic Research
1050 Massachusetts Ave.
Cambridge, MA 02138
617-868-3900
info@nber.org

Twitter RSS

View Full Site: One timeAlways