NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Jacopo Perego

Columbia University
3022 Broadway Uris 616
New York, NY 10027

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Institutional Affiliation: Columbia University

NBER Working Papers and Publications

October 2019Rules and Commitment in Communication: an Experimental Analysis
with Guillaume R. Fr├ęchette, Alessandro Lizzeri: w26404
We study the role of commitment in communication and its interactions with rules, which determine whether or not information is verifiable. Our framework nests models of cheap talk, information disclosure, and Bayesian persuasion. Our model predicts that commitment has opposite effects on information transmission under the two alternative rules. We leverage these contrasting forces to experimentally establish that subjects react to commitment in line with the main qualitative implications of the theory. Quantitatively, not all subjects behave as predicted. We show that a form of commitment blindness leads some senders to overcommunicate when information is verifiable and undercommunicate when it is not. This generates an unpredicted gap in information transmission across the two rules, sug...
 
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