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Wiley InterScience

International Economic Review

International Economic Review

Volume 47 Issue 1, Pages 297 - 325

Published Online: 23 Jan 2006

© 2009 the Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association



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INFORMATIONAL CASCADES ELICIT PRIVATE INFORMATION*
Olivier Gossner Nicolas Melissas 1
  CERAS, Paris, France; University of Leicester, U.K.
Copyright 2006 by the Economics Department Of The University Of Pennsylvania And Osaka University Institute Of Social And Economic Research Association

ABSTRACT

We introduce cheap talk in a dynamic investment model with information externalities. We first show how social learning adversely affects the credibility of cheap talk messages. Next, we show how an informational cascade makes truth-telling incentive compatible. A separating equilibrium only exists for high-surplus projects. Both an investment subsidy and an investment tax can increase welfare. The more precise the sender's information, the higher her incentives to truthfully reveal her private information.


Received: 2002; First Revision: 2004;
DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.1468-2354.2006.00380.x About DOI

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