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Sharing risk and ambiguity

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Author Info

  • Rigotti, Luca
  • Shannon, Chris

Abstract

We study the market implications of ambiguity in common models. We show that generic determinacy is a robust feature in general equilibrium models that allow a distinction between ambiguity and risk.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Theory.

Volume (Year): 147 (2012)
Issue (Month): 5 ()
Pages: 2028-2039

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Handle: RePEc:eee:jetheo:v:147:y:2012:i:5:p:2028-2039

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Web page: http://www.elsevier.com/locate/inca/622869

Related research

Keywords: Ambiguity; General equilibrium theory; Financial markets; Determinacy of equilibria; Variational preferences; Multiple priors;

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References

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  1. Luca Rigotti & Chris Shannon, 2005. "Uncertainty and Risk in Financial Markets," Econometrica, Econometric Society, vol. 73(1), pages 203-243, 01.
  2. David Schmeidler, 1989. "Subjective Probability and Expected Utility without Additivity," Levine's Working Paper Archive 7662, David K. Levine.
  3. Simone Cerreia-Vioglio & Fabio Maccheroni & Massimo Marinacci & Luigi Montrucchio, 2008. "Uncertainty Averse Preferences," Carlo Alberto Notebooks 77, Collegio Carlo Alberto.
  4. Mukerji, S. & Tallon, J.-M., 1999. "Ambiguity Aversion and Incompleteness of Financial Markets," Papiers d'Economie Mathématique et Applications 1999-28, Université Panthéon-Sorbonne (Paris 1).
  5. Lars Peter Hansen & Thomas J. Sargent & Thomas D. Tallarini Jr., 1997. "Robust Permanent Income and Pricing," Levine's Working Paper Archive 596, David K. Levine.
  6. Tallon, Jean-Marc & Dana, Rose-Anne & Chateauneuf, Alain, 2000. "Optimal risk-sharing rules and equilibria with Choquet-expected-utility," Economics Papers from University Paris Dauphine 123456789/5461, Paris Dauphine University.
  7. Marciano Siniscalchi, 2003. "A Behavioral Characterization of Plausible Priors," Discussion Papers 1365, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  8. DEBREU, Gérard, . "Economies with a finite set of equilibria," CORE Discussion Papers RP -67, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
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  11. Easley, David & O'Hara, Maureen, 2010. "Liquidity and valuation in an uncertain world," Journal of Financial Economics, Elsevier, vol. 97(1), pages 1-11, July.
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  19. Rui Pascoa, Mario & Ribeiro da Costa Werlang, Sergio, 1999. "Determinacy of equilibria in nonsmooth economies," Journal of Mathematical Economics, Elsevier, vol. 32(3), pages 289-302, November.
  20. Shannon, Chris, 1994. "Regular nonsmooth equations," Journal of Mathematical Economics, Elsevier, vol. 23(2), pages 147-165, March.
  21. Pascal J. Maenhout, 2004. "Robust Portfolio Rules and Asset Pricing," Review of Financial Studies, Society for Financial Studies, vol. 17(4), pages 951-983.
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  29. Antoine Billot & Alain Chateauneuf & Itzhak Gilboa & Jean-Marc Tallon, 2000. "Sharing Beliefs: Between Agreeing and Disagreeing," Econometrica, Econometric Society, vol. 68(3), pages 685-694, May.
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Citations

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Cited by:
  1. Scott Condie & Jayant V. Ganguli, 2011. "Ambiguity and Rational Expectations Equilibria," Review of Economic Studies, Oxford University Press, vol. 78(3), pages 821-845.
  2. Eisei Ohtaki & Hiroyuki Ozaki, 2013. "Monetary Equilibria and Knightian Uncertainty," Keio/Kyoto Joint Global COE Discussion Paper Series 2012-032, Keio/Kyoto Joint Global COE Program.
  3. Noé Biheng & Jean-Marc Bonnisseau, 2013. "Regular economies with ambiguity aversion," Documents de travail du Centre d'Economie de la Sorbonne 13083, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
  4. Luciano Castro & Alain Chateauneuf, 2011. "Ambiguity aversion and trade," Economic Theory, Springer, vol. 48(2), pages 243-273, October.
  5. Scott Condie & Jayant Ganguli, 2011. "Informational efficiency with ambiguous information," Economic Theory, Springer, vol. 48(2), pages 229-242, October.
  6. Mandler, Michael, 2013. "Endogenous indeterminacy and volatility of asset prices under ambiguity," Theoretical Economics, Econometric Society, vol. 8(3), September.
  7. Patrick Beißner, 2013. "Radner equilibria under ambiguous volatility," Working Papers 493, Bielefeld University, Center for Mathematical Economics.

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