A strategic mediator who is biased into the same direction as the expert can improve information transmission

Lydia Mechtenberg () and Johannes Münster

No SP II 2010-19, Discussion Papers, Research Unit: Market Behavior from Social Science Research Center Berlin (WZB)

Abstract: This note reconsiders communication between an informed expert and an uninformed decision maker with a strategic mediator in a discrete Crawford and Sobel (1982) setting. We show that a strategic mediator may improve communication even when he is biased into the same direction as the expert. The mediator improves communication, however, only if some information transmission is possible with unmediated communication. -- In dieser Note wird die Kommunikation zwischen einem informierten Experten, einem strategischen Mediator und einem uninformierten Prinzipal in einer diskreten Umgebung à la Crawford und Sobel (1982) untersucht. Wir zeigen, dass ein strategischer Mediator die Kommunikation sogar dann verbessern kann, wenn sein Bias und der Bias des Experten gleichgerichtet sind. Diese Verbesserung der Kommunikation setzt jedoch voraus, dass bereits die Kommunikation ohne Mediator Informationstransmission ermöglicht.

Keywords: Communication; Information; Cheap talk; Mediation (search for similar items in EconPapers)
JEL-codes: C72 D82 D83 (search for similar items in EconPapers)
Date: 2010
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Related works:
Journal Article: A strategic mediator who is biased in the same direction as the expert can improve information transmission (2012)
Working Paper: A strategic mediator who is biased into the same direction as the expert can improve information transmission (2011)
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