Publicité limitée de l'information et sur-réaction aux annonces lors des épisodes spéculatifs
The model of Morris and Shin  shows that imprecise public announcements can coordinate the actions of speculators far from the fundamental because of over-reaction to announcements. The strong focal potential of common knowledge is welfare damaging when it induces over-reaction to an imprecise public signal. However, laboratory experiments show that agents over-react to announcements, but not as much as what is theoretically predicted in models based on public information that generates common knowledge. This paper introduces the notion of limited degree of publicity, which seems to render better account for the actual degree of agents’ over-reaction. Classification JEL : C73, D82, F31
References listed on IDEAS
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- Camille Cornand & Frank Heinemann, 2004.
"Optimal Degree of Public Information Dissemination,"
CESifo Working Paper Series
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2001,3, Humboldt University of Berlin, Interdisciplinary Research Project 373: Quantification and Simulation of Economic Processes.
- Dorothea Kübler & Georg Weizs�cker, 2004. "Limited Depth of Reasoning and Failure of Cascade Formation in the Laboratory," Review of Economic Studies, Oxford University Press, vol. 71(2), pages 425-441.
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