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Non-Consequential Moral Preferences, Detail-Free Implementation, and Representative Systems

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Author Info
Hitoshi Matsushima (Faculty of Economics, University of Tokyo)

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Abstract

We investigate implementation of social choice functions where the central planner has no knowledge about the detail of model specifications, and only a few individuals participate in the mechanism. In contrast with the standard model of implementation, each agent has non-consequential moral preference in that she prefers truth-telling to lying whenever the resulting consequence is unchanged. We show that with complete information, there exists a single, detail-free mechanism that can implement any social choice function whenever agents regard its value as being socially desirable. This result holds even if psychological cost for lying is close to zero. Non-consequential moral preferences play a very powerful role in eliminating unwanted equilibria in detail-free mechanism design with representative systems. We extend this result to incomplete information.

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Paper provided by CIRJE, Faculty of Economics, University of Tokyo in its series CIRJE F-Series with number CIRJE-F-304.

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Length: 27 pages
Date of creation: Oct 2004
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Handle: RePEc:tky:fseres:2004cf304

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  1. Matsushima, Hitoshi, 1988. "A new approach to the implementation problem," Journal of Economic Theory, Elsevier, vol. 45(1), pages 128-144, June. [Downloadable!] (restricted)
  2. Brian Erard & Jonathan S. Feinstein, 1994. "Honesty and Evasion in the Tax Compliance Game," RAND Journal of Economics, The RAND Corporation, vol. 25(1), pages 1-19, Spring. [Downloadable!] (restricted)
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  3. Dirk Bergemann & Stephen Morris, 2005. "Robust Implementation: The Role of Large Type Spaces," Levine's Bibliography 784828000000000116, UCLA Department of Economics. [Downloadable!]
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  4. Alger, Ingela & Albert Ma, Ching-to, 2003. "Moral hazard, insurance, and some collusion," Journal of Economic Behavior & Organization, Elsevier, vol. 50(2), pages 225-247, February. [Downloadable!] (restricted)
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  5. Serrano, Roberto & Vohra, Rajiv, 2001. "Some Limitations of Virtual Bayesian Implementation," Econometrica, Econometric Society, vol. 69(3), pages 785-92, May.
  6. repec:att:wimass:1920123 is not listed on IDEAS
  7. Glazer, Jacob & Rubinstein, Ariel, 1998. "Motives and Implementation: On the Design of Mechanisms to Elicit Opinions," Journal of Economic Theory, Elsevier, vol. 79(2), pages 157-173, April. [Downloadable!] (restricted)
  8. Maskin, Eric & Tirole, Jean, 1999. "Unforeseen Contingencies and Incomplete Contracts," Review of Economic Studies, Blackwell Publishing, vol. 66(1), pages 83-114, January. [Downloadable!] (restricted)
  9. Matsushima Hitoshi, 1993. "Bayesian Monotonicity with Side Payments," Journal of Economic Theory, Elsevier, vol. 59(1), pages 107-121, February. [Downloadable!] (restricted)
  10. Eliaz, Kfir, 2002. "Fault Tolerant Implementation," Review of Economic Studies, Blackwell Publishing, vol. 69(3), pages 589-610, July.
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  11. Maskin, Eric, 1999. "Nash Equilibrium and Welfare Optimality," Review of Economic Studies, Blackwell Publishing, vol. 66(1), pages 23-38, January. [Downloadable!] (restricted)
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  12. John Duggan, 1997. "Virtual Bayesian Implementation," Econometrica, Econometric Society, vol. 65(5), pages 1175-1200, September.
  13. Prasanta K. Pattanaik & Maurice Salles & Kotaro Suzumura, 2004. "Introduction," Social Choice and Welfare, Springer, vol. 22(1), pages 1-6, 02. [Downloadable!] (restricted)
  14. Jackson, Matthew O, 1991. "Bayesian Implementation," Econometrica, Econometric Society, vol. 59(2), pages 461-77, March. [Downloadable!] (restricted)
  15. Abreu, D. & Matsushima, H., 1991. "Virtual Implementation in Iteratively Undominated Strategies: Incomplete Information," Papers e-91-2, Stanford - Hoover Institution.
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  16. Neeman, Zvika, 2004. "The relevance of private information in mechanism design," Journal of Economic Theory, Elsevier, vol. 117(1), pages 55-77, July. [Downloadable!] (restricted)
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  17. Roberto Serrano & Rajiv Vohra, . "Type Diversity and Virtual Bayesian Implementation Creation-Date: 2000," Working Papers 2000-16, Brown University, Department of Economics. [Downloadable!]
  18. Maskin, Eric & Sjostrom, Tomas, 2002. "Implementation theory," Handbook of Social Choice and Welfare, in: K. J. Arrow & A. K. Sen & K. Suzumura (ed.), Handbook of Social Choice and Welfare, edition 1, volume 1, chapter 5, pages 237-288 Elsevier. [Downloadable!] (restricted)
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  19. Jean Tirole, 1999. "Incomplete Contracts: Where Do We Stand?," Econometrica, Econometric Society, vol. 67(4), pages 741-782, July.
  20. Amartya Sen, 1999. "The Possibility of Social Choice," American Economic Review, American Economic Association, vol. 89(3), pages 349-378, June. [Downloadable!] (restricted)
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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Hitoshi Matsushima, 2005. "Mechanism Design with Side Payments: Individual Rationality and Iterative Dominance," CIRJE F-Series CIRJE-F-376, CIRJE, Faculty of Economics, University of Tokyo. [Downloadable!]
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