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

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  • Mechtenberg, Lydia
  • Münster, Johannes

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.

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Bibliographic Info

Paper provided by Social Science Research Center Berlin (WZB) in its series Discussion Papers, Research Unit: Market Behavior with number SP II 2010-19.

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Date of creation: 2010
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Handle: RePEc:zbw:wzbmbh:spii201019

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Keywords: Communication; Information; Cheap talk; Mediation;

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  1. Shuzhuan Zheng & Lijian Yang & Wolfgang Karl Härdle, 2011. "A Confidence Corridor for Sparse Longitudinal Data Curves," SFB 649 Discussion Papers SFB649DP2011-002, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
  2. Wolfgang Karl Härdle & Brenda López Cabrera & Ostap Okhrin & Weining Wang, 2011. "Localising temperature risk," SFB 649 Discussion Papers SFB649DP2011-001, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
  3. Crawford, Vincent P & Sobel, Joel, 1982. "Strategic Information Transmission," Econometrica, Econometric Society, vol. 50(6), pages 1431-51, November.
  4. Goltsman, Maria & Hörner, Johannes & Pavlov, Gregory & Squintani, Francesco, 2009. "Mediation, arbitration and negotiation," Journal of Economic Theory, Elsevier, vol. 144(4), pages 1397-1420, July.
  5. Esra Akdeniz Duran & Mengmeng Guo & Wolfgang Karl Härdle, 2011. "A Confidence Corridor for Expectile Functions," SFB 649 Discussion Papers SFB649DP2011-004, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
  6. Till Strohsal & Enzo Weber, 2011. "Mean-Variance Cointegration and the Expectations Hypothesis," SFB 649 Discussion Papers SFB649DP2011-007, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
  7. Lu Lin & Feng Li & Lixing Zhu & Wolfgang Karl Härdle, 2011. "Mean Volatility Regressions," SFB 649 Discussion Papers SFB649DP2011-003, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
  8. Wolfgang Karl Härdle & Vladimir Spokoiny & Weining Wang, 2011. "Local Quantile Regression," SFB 649 Discussion Papers SFB649DP2011-005, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
  9. Li, Ming & Madarász, Kristóf, 2008. "When mandatory disclosure hurts: Expert advice and conflicting interests," Journal of Economic Theory, Elsevier, vol. 139(1), pages 47-74, March.
  10. Ivanov, Maxim, 2010. "Communication via a strategic mediator," Journal of Economic Theory, Elsevier, vol. 145(2), pages 869-884, March.
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