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VERSION:2.0
PRODID:-//AMSE//Event Calendar//FR
CALSCALE:GREGORIAN
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BEGIN:VEVENT
UID:event-12718@amse-aixmarseille.fr
DTSTAMP:20260414T021706Z
CREATED:20260414T021706Z
LAST-MODIFIED:20260414T021706Z
STATUS:CONFIRMED
SEQUENCE:0
SUMMARY:Economic theory seminar - Eugenio Verrina
DTSTART:20260320T110000Z
DTEND:20260320T120000Z
DESCRIPTION:Selection neglect\, i.e.\, the failure to account for selection
  in the information one receives\, is one of the key drivers behind politic
 al polarization. Social identity is often embedded in information structure
  where selection neglect may arise. For example\, relying on information co
 ming from one’s echo chamber and neglecting information outside of it may
  lead to distorted views. In this context\, people belonging to one’s ech
 o chamber could be viewed as in-group members\, e.g.\, because they share o
 ne’s political affiliation\, while people who do not belong to one’s ec
 ho chamber could be perceived as out-group members. In this study\, we inve
 stigate how social identity and selection neglect together affect belief fo
 rmation. We design a novel experimental paradigm where subjects guess a com
 puter-generated number. For each guess\, receivers observe the estimate of 
 multiple senders who have privately received signals about the correct numb
 er. We manipulate i) whether the signal structure can induce selection negl
 ect\, and ii) whether social identity is present. We find that receivers su
 ffer from selection neglect\, replicating the results from previous studies
 . Importantly\, selection neglect is exacerbated when the observed signals 
 predominantly come from in-group senders. In contrast\, if the observed sig
 nals come from out-group senders\, subjects become much better at accountin
 g for selection. Moreover\, we show that social identity alone causes no bi
 as\, but it is the combination of selection neglect and social identity tha
 t drives our results. Finally\, we dig into the potential mechanisms that c
 ould drive our results. Our findings offer insights into the determinants o
 f polarization and have important implications for the design of informatio
 n structure and of policies aimed at reducing it.\\n\\nContact: Jiakun Zhen
 g: jiakun.zheng[at]univ-amu.fr\n\nPlus d'informations: https://amse-aixmar
 seille.fr/en/events/eugenio-verrina-0
LOCATION:Îlot Bernard du Bois - Salle 17\, AMU - AMSE\, 5-9 boulevard Maur
 ice Bourdet\, 13001 Marseille
URL;VALUE=URI:https://amse-aixmarseille.fr/en/events/eugenio-verrina-0
CONTACT:Jiakun Zheng:&nbsp\;jiakun.zheng[at]univ-amu.fr
TRANSP:OPAQUE
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