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Ambiguity and Rational Expectations Equilibria

  • Scott Condie
  • Jayant V. Ganguli

This paper demonstrates the existence and robustness of partially revealing rational expectations equilibria in general exchange economies when some traders have non-smooth ambiguity-averse preferences. This finding illustrates that models with non-smooth ambiguity aversion provide a relatively tractable framework through which partial information revelation may be studied in a general equilibrium setting without relying on particular distributional or von Neumann--Morgenstern utility assumptions or the presence of "noise." Copyright 2011, Oxford University Press.

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File URL: http://hdl.handle.net/10.1093/restud/rdq032
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Article provided by Oxford University Press in its journal The Review of Economic Studies.

Volume (Year): 78 (2011)
Issue (Month): 3 ()
Pages: 821-845

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Handle: RePEc:oup:restud:v:78:y:2011:i:3:p:821-845
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  1. Marciano Siniscalchi, 2003. "A Behavioral Characterization of Plausible Priors," Discussion Papers 1365, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  2. Mas-Colell, Andreu & Whinston, Michael D. & Green, Jerry R., 1995. "Microeconomic Theory," OUP Catalogue, Oxford University Press, number 9780195102680, June.
  3. 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.
  4. Polemarchakis, H M & Siconolfi, P, 1993. "Asset Markets and the Information Revealed by Prices," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 3(4), pages 645-61, October.
  5. Jordan, J. S., 1982. "The generic existence of rational expectations equilibrium in the higher dimensional case," Journal of Economic Theory, Elsevier, vol. 26(2), pages 224-243, April.
  6. Itzhak Gilboa & Andrew Postlewaite & David Schmeidler, 2004. "Rationality of Belief," Levine's Bibliography 122247000000000690, UCLA Department of Economics.
  7. Tallon, Jean-Marc, 1998. "Asymmetric Information, Nonadditive Expected Utility, and the Information Revealed by Prices: An Example," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 39(2), pages 329-42, May.
  8. Itzhak Gilboa & Andrew Postlewaite & David Schmeidler, 2004. "Rationality of Belief Or: Why Savage's axioms are neither necessary nor sufficient for rationality, Second Version," PIER Working Paper Archive 08-043, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania, revised 03 Dec 2008.
  9. Itzhak Gilboa & Andrew Postlewaite & David Schmeidler, 2004. "Rationality of Belief. Or: Why Bayesianism is Neither Necessary nor Sufficient for Rationality," Cowles Foundation Discussion Papers 1484, Cowles Foundation for Research in Economics, Yale University.
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