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Information Aggregation and Preference Heterogeneity in Committees

  • Elisabeth Schulte

    ()

    (Department of Economics, University of Mannheim)

This paper is concerned with the efficiency of information aggregation in a committee whose members have heterogeneous preferences over a binary decision variable. In a first stage, agents may exchange private (decision-relevant) information which is assumed to be verifiable. Then they reach a decision via majority voting. We study different information environments and identify conditions under which full information aggregation is possible. In particular, if preferences are common knowledge and each committee member is endowed with information full information aggregation is possible despite preference heterogeneity.

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File URL: http://jeps.repec.org/papers/06-003.pdf
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Paper provided by JEPS in its series JEPS Working Papers with number 06-003.

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Length: 45 pages
Date of creation: Oct 2006
Date of revision:
Handle: RePEc:jep:wpaper:06003
Contact details of provider: Web page: http://jeps.repec.org/

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  1. Dino Gerardi & Leeat Yariv, 2003. "Putting Your Ballot Where Your Mouth Is: An Analysis of Collective Choice with Communication," UCLA Economics Working Papers 827, UCLA Department of Economics.
  2. Dino Gerardi & Leeat Yariv, 2003. "Putting Your Ballot Where you Mouth Is: An Analysis of Collective Choice," Levine's Working Paper Archive 506439000000000280, David K. Levine.
  3. Nicola Persico, 2004. "Committee Design with Endogenous Information," Review of Economic Studies, Wiley Blackwell, vol. 71(1), pages 165-191, 01.
  4. Gerardi, Dino & McLean, Richard & Postlewaite, Andrew, 2009. "Aggregation of expert opinions," Games and Economic Behavior, Elsevier, vol. 65(2), pages 339-371, March.
  5. Gerling, Kerstin & Gruner, Hans Peter & Kiel, Alexandra & Schulte, Elisabeth, 2005. "Information acquisition and decision making in committees: A survey," European Journal of Political Economy, Elsevier, vol. 21(3), pages 563-597, September.
  6. David Austen-Smith & Tim Feddersen, 2002. "Deliberation and Voting Rules," Discussion Papers 1359, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  7. Dino Gerardi & Leeat Yariv, 2003. "Committee Design in the Presence of Communication," Cowles Foundation Discussion Papers 1411, Cowles Foundation for Research in Economics, Yale University.
  8. Timothy Feddersen & Wolfgang Pesendorfer, 1997. "Voting Behavior and Information Aggregation in Elections With Private Information," Levine's Working Paper Archive 1560, David K. Levine.
  9. Doraszelski Ulrich & Gerardi Dino & Squintani Francesco, 2003. "Communication and Voting with Double-Sided Information," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 3(1), pages 1-41, August.
  10. Paul R. Milgrom & John Roberts, 1985. "Relying on the Information of Interested Parties," Cowles Foundation Discussion Papers 749, Cowles Foundation for Research in Economics, Yale University.
  11. Nicola Persico, 2004. "Committee Design with Endogenous Information," Review of Economic Studies, Oxford University Press, vol. 71(1), pages 165-191.
  12. Elisabeth Schulte, 2012. "Communication in committees: who should listen?," Public Choice, Springer, vol. 150(1), pages 97-117, January.
  13. Timothy Feddersen & Wolfgang Pesendorfer, 1996. "Convicting the Innocent: The Inferiority of Unanimous Jury Verdicts," Discussion Papers 1170, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  14. Abhijit Banerjee & Rohini Somanathan, 2001. "A Simple Model Of Voice," The Quarterly Journal of Economics, MIT Press, vol. 116(1), pages 189-227, February.
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