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PRODID:-//AMSE//Event Calendar//FR
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UID:event-11124@amse-aixmarseille.fr
DTSTAMP:20260430T140245Z
CREATED:20260430T140245Z
LAST-MODIFIED:20260430T140245Z
STATUS:CONFIRMED
SEQUENCE:0
SUMMARY:Economic theory seminar - Ludovic Renou
DTSTART:20240524T100000Z
DTEND:20240524T110000Z
DESCRIPTION:We explore whether and to what extent using ambiguous communica
 tion can be beneficial for the sender in persuasion when the receiver is am
 biguity averse. In our model\, ambiguity enters only through how (and if) t
 he sender chooses to allow the realization of some payoff- irrelevant ambig
 uous events to determine which statistical experiment is used to generate a
 c- tion recommendations for the receiver and dynamic inconsistency plays no
  role. An ambiguous communication strategy is a source of ambiguity togethe
 r with a collection of statistical exper- iments\, one for each ambiguous e
 vent. We provide a concavification characterization of the sender’s optim
 al ambiguous communication. The characterization highlights the necessity o
 f using a collection of experiments that form a splitting of an experiment 
 whose recommen- dations are incentive compatible for the receiver. At least
  some of the experiments in the collection must be Pareto-ranked in the sen
 se that both the sender and receiver agree on their ranking. The existence 
 of a binary such Pareto-ranked splitting is necessary for ambiguous communi
 cation to benefit the sender\, and\, if an optimal Bayesian persuasion expe
 riment can be split in this way\, this is sufficient for an ambiguity-neutr
 al sender as well as the receiver to benefit. We show such gains are imposs
 ible when the receiver has only two actions available. Such gains persist e
 ven when the sender is ambiguity averse\, as long as not too much more so t
 han the receiver and not infinitely averse. They are also robust to the rec
 eiver being more ambiguity averse than the sender thought. An illustrative 
 example in the context of banking regulation and stress testing is provided
 .\\n\\nContact: Gaëtan Fournier : gaetan.fournier[at]univ-amu.fr\n\nPlus d
 'informations: https://amse-aixmarseille.fr/fr/evenements/ludovic-renou-5
LOCATION:Îlot Bernard du Bois - Salle 16\, AMU - AMSE\, 5-9 boulevard Maur
 ice Bourdet\, 13001 Marseille
URL;VALUE=URI:https://amse-aixmarseille.fr/fr/evenements/ludovic-renou-5
CONTACT:Gaëtan Fournier : gaetan.fournier[at]univ-amu.fr
TRANSP:OPAQUE
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