Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/296365 
Year of Publication: 
2022
Citation: 
[Journal:] Theoretical Economics [ISSN:] 1555-7561 [Volume:] 17 [Issue:] 2 [Year:] 2022 [Pages:] 587-615
Publisher: 
The Econometric Society, New Haven, CT
Abstract: 
The main purpose of this paper is to provide a simple criterion enabling to conclude that two agents do not share a common prior. The criterion is simple, as it does not require information about the agents' knowledge and beliefs, but rather only the record of a dialogue between the agents. In each stage of the dialogue the agents tell each other the probability they ascribe to a fixed event and update their beliefs about the event. To characterize dialogues consistent with a common prior, we first study monologues, which are sequences of probabilities assigned by a single agent to a given event in an exogenous learning process. A dialogue is consistent with a common prior if and only if each selection sequence from the two monologues comprising the dialogue is itself a monologue.
Subjects: 
Learning processes
Bayesian dialogue
Bayesian monologue
Ratio variation
Joint fluctuation
Agreement
JEL: 
D83
Persistent Identifier of the first edition: 
Creative Commons License: 
cc-by-nc Logo
Document Type: 
Article

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