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Autoren: 
Faia, Ester
Fuster, Andreas
Pezone, Vincenzo
Zafar, Basit
Datum: 
2021
Schriftenreihe/Nr.: 
SAFE Working Paper No. 307
Zusammenfassung: 
How people form beliefs is crucial for understanding decision-making under uncertainty. This is particularly true in a situation such as a pandemic, where beliefs will affect behaviors that impact public health as well as the aggregate economy. We conduct two survey experiments to shed light on potential biases in belief formation, focusing in particular on the tone of information people choose to consume and how they incorporate this information into their beliefs. In the first experiment, people express their preferences over pandemic-related articles with optimistic and pessimistic headlines, and are then randomly shown one of the articles. We find that respondents with more pessimistic prior beliefs about the pandemic are substantially more likely to prefer pessimistic articles, which we interpret as evidence of confirmation bias. In line with this, respondents assigned to the less preferred article rate it as less reliable and informative (relative to those who prefer it); they also discount information from the article when it is less preferred. We further find that these motivated beliefs end up impacting incentivized behavior. In a second experiment, we study how partisan views interact with information selection and processing. We find strong evidence of source dependence: revealing the news source further distorts information acquisition and processing, eliminating the role of prior beliefs in article choice.
Schlagwörter: 
Belief updating
confirmatory biases
endogenous information acquisition
media polarization
source dependence
COVID-19
JEL: 
D84
D91
E71
I12
Dokumentart: 
Working Paper

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