Contracts for Experts with Opposing Interests
AbstractWe study the problem of optimal contract design in an environment with an uninformed decision maker and two perfectly informed experts. We characterize optimal contracts and observe that consulting two experts rather than one is always beneficial; this is so even if the bias of a second expert is arbitrary large and this expert would have no value in a cheap talk environment. We also provide conditions under which these contracts implement the first best outcome; our sufficient condition is weaker than the conditions in the literature on the environments without commitment. In order to derive optimal contracts, we prove a Òconstant-threatÓ result that states that one can restrict attention to contracts in which the action implemented in case of a disagreement among the experts is independent of their reports. A particular implication of this result is that an optimal contract is constant for a large set of expertsÕ preferences and hence is robust to mistakes in their specification.
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Bibliographic InfoPaper provided by Kyiv School of Economics in its series Discussion Papers with number 5.
Date of creation: Jan 2008
Date of revision: Feb 2010
Note: Under review in RAND Journal of Economics
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More information through EDIRC
information; optimal contracts; experts; constant-threat principle;
Find related papers by JEL classification:
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
- D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
- D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
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- Marco Battaglini, 1999.
"Multiple Referrals and Multidimensional Cheap Talk,"
1295, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
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- Vijay Krishna & John Morgan, 1999.
"A Model of Expertise,"
154, Princeton University, Woodrow Wilson School of Public and International Affairs, Discussion Papers in Economics..
- Gilat Levy & Ronny Razin, 2007. "On the Limits of Communication in Multidimensional Cheap Talk: A Comment," Econometrica, Econometric Society, vol. 75(3), pages 885-893, 05.
- Ambrus, Attila & Takahashi, Satoru, 2008.
"Multi-sender cheap talk with restricted state spaces,"
Econometric Society, vol. 3(1), March.
- Takahashi, Satoru & Ambrus, Attila, 2008. "Multi-Sender Cheap Talk with Restricted State Spaces," Scholarly Articles 3200263, Harvard University Department of Economics.
- Austen-Smith David, 1993. "Interested Experts and Policy Advice: Multiple Referrals under Open Rule," Games and Economic Behavior, Elsevier, vol. 5(1), pages 3-43, January.
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