Misinformation due to asymmetric information sharing
Fanyuan Meng and
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Stefan KlÃ¶ÃŸner: UniversitÃ¤t Vechta
Fanyuan Meng: University of Fribourg, Switzerland
Anis Nassar: University of Fribourg, Switzerland
Authors registered in the RePEc Author Service: Berno Büchel
No 528, FSES Working Papers from Faculty of Economics and Social Sciences, University of Freiburg/Fribourg Switzerland
On social media platforms, true and false information compete. Importantly, some messages travel much further than others, even if they concern the same topic. This fact is not reflected in models of social learning (or opinion formation) in networks. Our model fills this gap by allowing different types of information to have different decay factors and to be shared to different networks of people, incorporating asymmetries in sharing behaviors. More â€œshareableâ€ information then dominates in the long run. This yields a substantial probability of misinformation, in contrast to the special case of symmetry covered by the literature. Asymptotic learning requires a perfect balance between two types of asymmetry: the product of decay factor and largest eigenvalue in the respective signal sharing networks must coincide. Approaching this balance reduces the speed of convergence and enables social learning in the shorter term. Our analysis thus suggests that policy makers, who do not know the true state, aim to mitigate asymmetries in signal sharing, e.g. by weakening echo chambers or by fostering the shareability of cumbersome, boring messages.
Keywords: misinformation; asymmetry; social networks; social learning; opinion dynamics; echo chambers (search for similar items in EconPapers)
JEL-codes: D83 D85 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-dem and nep-net
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Journal Article: Misinformation due to asymmetric information sharing (2023)
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