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A new perspective to rational expectations: maximin rational expectations equilibrium

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  • Luciano De Castro
  • Marialaura Pesce
  • Nicholas C. Yannelis

Abstract

We introduce a new notion of rational expectations equilibrium (REE) called maximin rational expectations equilibrium (MREE), which is based on the maximin expected utility (MEU) formulation. In particular, agents maximize maximin expected utility conditioned on their own private information and the information that the equilibrium prices generate. Maximin equilibrium allocations need not to be measurable with respect to the private information of each individual and with respect to the information that the equilibrium prices generate, as it is in the case of the Bayesian REE. We prove that a maximin REE exists universally (and not generically as in Radner (1979) and Allen (1981)), it is effcient and incentive compatible. These results are false for the Bayesian REE

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Bibliographic Info

Paper provided by Economics, The University of Manchester in its series The School of Economics Discussion Paper Series with number 1107.

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Date of creation: 2011
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Handle: RePEc:man:sespap:1107

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Web page: http://www.socialsciences.manchester.ac.uk/subjects/economics/
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  1. João Correia-da-Silva & Carlos Hervés-Beloso, 2009. "Prudent expectations equilibrium in economies with uncertain delivery," Economic Theory, Springer, vol. 39(1), pages 67-92, April.
  2. Kreps, David M., 1977. "A note on "fulfilled expectations" equilibria," Journal of Economic Theory, Elsevier, vol. 14(1), pages 32-43, February.
  3. Radner, Roy, 1979. "Rational Expectations Equilibrium: Generic Existence and the Information Revealed by Prices," Econometrica, Econometric Society, vol. 47(3), pages 655-78, May.
  4. Yannelis, Nicholas C, 1991. "The Core of an Economy with Differential Information," Economic Theory, Springer, vol. 1(2), pages 183-97, April.
  5. Koutsougeras, Leonidas C & Yannelis, Nicholas C, 1993. "Incentive Compatibility and Information Superiority of the Core of an Economy with Differential Information," Economic Theory, Springer, vol. 3(2), pages 195-216, April.
  6. Larry G. Epstein & Martin Schneider, 2010. "Ambiguity and Asset Markets," Annual Review of Financial Economics, Annual Reviews, vol. 2(1), pages 315-346, December.
  7. Scott Condie & Jayant Ganguli, 2011. "Informational efficiency with ambiguous information," Economic Theory, Springer, vol. 48(2), pages 229-242, October.
  8. Allen, Beth E, 1981. "Generic Existence of Completely Revealing Equilibria for Economies with Uncertainty when Prices Convey Information," Econometrica, Econometric Society, vol. 49(5), pages 1173-99, September.
  9. Larry Epstein & Martin Schneider, 2006. "Learning Under Ambiguity," RCER Working Papers 527, University of Rochester - Center for Economic Research (RCER).
  10. Krasa, Stefan & Yannelis, Nicholas C, 1994. "The Value Allocation of an Economy with Differential Information," Econometrica, Econometric Society, vol. 62(4), pages 881-900, July.
  11. Dionysius Glycopantis & Allan Muir & Nicholas Yannelis, 2005. "Non-implementation of rational expectations as a perfect Bayesian equilibrium," Economic Theory, Springer, vol. 26(4), pages 765-791, November.
  12. Podczeck, Konrad & Yannelis, Nicholas C., 2008. "Equilibrium theory with asymmetric information and with infinitely many commodities," Journal of Economic Theory, Elsevier, vol. 141(1), pages 152-183, July.
  13. Dana, Rose-Anne, 2004. "Ambiguity, uncertainty aversion and equilibrium welfare," Economics Papers from University Paris Dauphine 123456789/5393, Paris Dauphine University.
  14. Rose-Anne Dana, 2004. "Ambiguity, uncertainty aversion and equilibrium welfare," Economic Theory, Springer, vol. 23(3), pages 569-587, March.
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Citations

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Cited by:
  1. Zhiwei Liu & Nicholas C. Yannelis, 2013. "Implementation under ambiguity: the maximin core," The School of Economics Discussion Paper Series 1319, Economics, The University of Manchester.
  2. Nabil I. Al-Najjar & Luciano De Castro, 2010. "Uncertainty, Efficiency and Incentive Compatibility," Discussion Papers 1532, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  3. Luciano De Castro & Marialaura Pesce & Nicolas Yannelis, 2011. "Core and Equilibria under ambiguity," Discussion Papers 1534, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  4. Jayant Ganguli & Scott Condie, 2012. "The pricing effects of ambiguous private information," Economics Discussion Papers 720, University of Essex, Department of Economics.
  5. Nizar Allouch, 2009. "A Competitive Equilibrium for a Warm Glow Economy," Working Papers 641, Queen Mary, University of London, School of Economics and Finance.
  6. Xiaojuan Hu & Cheng-Zhong Qin, 2013. "Information acquisition and welfare effect in a model of competitive financial markets," Economic Theory, Springer, vol. 54(1), pages 199-210, September.
  7. Jack Stecher & Radhika Lunawat & Kira Pronin & John Dickhaut, 2007. "Decision Making and Trade without Probabilities," CIRANO Working Papers 2007s-21, CIRANO.
  8. Luciano De Castro & Nicholas C. Yannelis, 2011. "Ambiguity aversion solves the conflict between efficiency and incentive compatibility," The School of Economics Discussion Paper Series 1106, Economics, The University of Manchester.
  9. Scott Condie & Jayant Ganguli, 2011. "Informational efficiency with ambiguous information," Economic Theory, Springer, vol. 48(2), pages 229-242, October.

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