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Consulting an Expert with Potentially Conflicting Preferences

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  • Lanzi, Thomas
  • Mathis, Jérôme

Abstract

In this paper, two modes of non-binding communication between an expert and a decision- maker are compared. They are distinguished mainly by the nature of the information transmitted by the expert. In the first one, the expert reports only his opinion (soft information) concerning the desirability of a certain action, whereas in the second one, he is consulted to provide evidence (hard information) to convince the decision-maker. The expert's ability to provide evidence increases with the precision of his information. The paper shows that requiring evidence is always beneficial to the decision-maker whereas it is bene�cial to the expert if and only if the preferences of both agents are different enough.

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Bibliographic Info

Paper provided by University of Toulouse 1 Capitole in its series Open Access publications from University of Toulouse 1 Capitole with number http://neeo.univ-tlse1.fr/1472/.

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Date of creation: Nov 2008
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Publication status: Published in Theory and Decision (2008-11) v.65, p.185-204
Handle: RePEc:ner:toulou:http://neeo.univ-tlse1.fr/1472/

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Web page: http://www.univ-tlse1.fr/

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  1. Mathis, Jérôme, 2008. "Full revelation of information in Sender-Receiver games of persuasion," Journal of Economic Theory, Elsevier, vol. 143(1), pages 571-584, November.
  2. Okuno-Fujiwara, Masahiro & Postlewaite, Andrew & Suzumura, Kotaro, 1990. "Strategic Information Revelation," Review of Economic Studies, Wiley Blackwell, vol. 57(1), pages 25-47, January.
  3. Wolinsky, Asher, 2003. "Information transmission when the sender's preferences are uncertain," Games and Economic Behavior, Elsevier, vol. 42(2), pages 319-326, February.
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  6. Frédéric KOESSLER, 2001. "Persuasion Games with Higher Order Uncertainty," Working Papers of BETA 2001-14, Bureau d'Economie Théorique et Appliquée, UDS, Strasbourg.
  7. Daniel J. Seidmann & Eyal Winter, 1997. "Strategic Information Transmission with Verifiable Messages," Econometrica, Econometric Society, vol. 65(1), pages 163-170, January.
  8. Grossman, Sanford J, 1981. "The Informational Role of Warranties and Private Disclosure about Product Quality," Journal of Law and Economics, University of Chicago Press, vol. 24(3), pages 461-83, December.
  9. Wolinsky, Asher, 2002. "Eliciting information from multiple experts," Games and Economic Behavior, Elsevier, vol. 41(1), pages 141-160, October.
  10. Grossman, S J & Hart, O D, 1980. " Disclosure Laws and Takeover Bids," Journal of Finance, American Finance Association, vol. 35(2), pages 323-34, May.
  11. Lipman Barton L. & Seppi Duane J., 1995. "Robust Inference in Communication Games with Partial Provability," Journal of Economic Theory, Elsevier, vol. 66(2), pages 370-405, August.
  12. Paul R. Milgrom, 1979. "Good Nevs and Bad News: Representation Theorems and Applications," Discussion Papers 407R, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  13. Leland, Hayne E, 1981. "The Informational Role of Warranties and Private Disclosure about Product Quality: Comment," Journal of Law and Economics, University of Chicago Press, vol. 24(3), pages 485-89, December.
  14. Giovannoni, Francesco & Seidmann, Daniel J., 2007. "Secrecy, two-sided bias and the value of evidence," Games and Economic Behavior, Elsevier, vol. 59(2), pages 296-315, May.
  15. Sanford Grossman & Oliver Hart, . "Disclosure Laws and Takeover Bids," Rodney L. White Center for Financial Research Working Papers 23-79, Wharton School Rodney L. White Center for Financial Research.
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  17. Steven Matthews & Andrew Postlewaite, 1985. "Quality Testing and Disclosure," RAND Journal of Economics, The RAND Corporation, vol. 16(3), pages 328-340, Autumn.
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Cited by:
  1. Mathis, Jérôme, 2008. "Full revelation of information in Sender-Receiver games of persuasion," Journal of Economic Theory, Elsevier, vol. 143(1), pages 571-584, November.
  2. Lanzi, Thomas & Mathis, Jérôme, 2011. "How to consult an expert? Opinion vs Evidence," Open Access publications from University of Toulouse 1 Capitole http://neeo.univ-tlse1.fr, University of Toulouse 1 Capitole.
  3. Thomas Lanzi & Jerome Mathis, 2011. "How to consult an expert? Opinion versus evidence," Theory and Decision, Springer, vol. 70(4), pages 447-474, April.

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