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Ambiguity Aversion and Incompleteness of Financial Markets

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Author Info
Sujoy Mukerji (University of Oxford - University of Oxford)
Jean-Marc Tallon () (EUREQUA - Equipe Universitaire de Recherche en Economie Quantitative - CNRS : UMR8594 - Université Panthéon-Sorbonne - Paris I)

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Abstract

It is widely thought that incomes risks can be shared by trading infinancial assets. But financial assets typically carry some riskidiosyncratic to them, hence, disposing incomes risk using financial assetswill involve buying into the inherent idiosyncratic risk. However, standardtheory argues that diversification would reduce the inconvenience ofidiosyncratic risk to arbitrarily low levels. This argument is less robustthan what standard theory leads us to believe: ambiguity aversion canexacerbate the tension between the two kinds of risks to the point thatclasses of agents may not want to trade some financial assets. Thus,theoretically, the effect of ambiguity aversion on financial markets is tomake the risk sharing opportunities offered by financial markets lesscomplete than it would be otherwise.

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Paper provided by HAL in its series Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) with number halshs-00174539_v1.

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Date of creation: 2001
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Publication status: Published, Review of Economic Studies, 2001, 883-904
Handle: RePEc:hal:cesptp:halshs-00174539_v1

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Keywords: incomplete markets; ambiguity aversion;

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References listed on IDEAS
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.:
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Full references

Cited by:
(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. Aldo Montesano, 2009. "Risk allocation and uncertainty: some unpleasant outcomes of financial innovation," International Review of Economics, Springer, vol. 56(3), pages 243-250, September. [Downloadable!] (restricted)
  2. Carlos Carvalho & Nicholas Klagge & Emanuel Moench, 2009. "The persistent effects of a false news shock," Staff Reports 374, Federal Reserve Bank of New York. [Downloadable!]
  3. Fujikawa, Takemi, 2009. "The hot stove effect in repeated-play decision making under ambiguity," MPRA Paper 17647, University Library of Munich, Germany. [Downloadable!]
  4. Larry Epstein & Martin Schneider, 2005. "Ambiguity, Information Quality and Asset Pricing," RCER Working Papers 519, University of Rochester - Center for Economic Research (RCER). [Downloadable!]
    Other versions:
  5. Sujoy Mukerji & Jean-Marc Tallon, 2001. "Ambiguity Aversion and Incompleteness of Financial Markets," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00174539_v1, HAL. [Downloadable!]
    Other versions:
  6. Stefan Trautmann & Ferdinand Vieider & Peter Wakker, 2008. "Causes of ambiguity aversion: Known versus unknown preferences," Journal of Risk and Uncertainty, Springer, vol. 36(3), pages 225-243, June. [Downloadable!] (restricted)
  7. Riddel, Mary & Shaw, W. Douglass, 2006. "A Theoretically-Consistent Empirical Non-Expected Utility Model of Ambiguity: Nuclear Waste Mortality Risk and Yucca Mountain," Pre-Prints 23964, Texas A&M University, Department of Agricultural Economics. [Downloadable!]
  8. Akay, Alpaslan & Martinsson, Peter & Medhin, Haileselassie & Trautmann, Stefan T., 2009. "Attitudes toward Uncertainty among the Poor: Evidence from Rural Ethiopia," IZA Discussion Papers 4225, Institute for the Study of Labor (IZA). [Downloadable!]
  9. Carmela Mauro, 2008. "Uncertainty Aversion Vs. Competence: An Experimental Market Study," Theory and Decision, Springer, vol. 64(2), pages 301-331, March. [Downloadable!] (restricted)
  10. Sujoy Mukerji & Jean-Marc Tallon, 2003. "An overview of economic applications of David Schmeidler`s models of decision making under uncertainty," Economics Series Working Papers 172, University of Oxford, Department of Economics. [Downloadable!]
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  11. Stoneman, Paul & Canepa, Alessandra & Kaivanto, Kim, 2004. "The Public Provision of Sales Contingent Contracts as a Policy Response to Financial Constraints to Innovation in European SMEs," EIFC - Technology and Finance Working Papers 38, United Nations University, Institute for New Technologies. [Downloadable!]
    Other versions:
  12. Jean-Marc Tallon & Sujoy Mukerji, 2004. "Ambiguity aversion and the absence of wage indexation," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00174562_v1, HAL. [Downloadable!]
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  13. Jürgen Eichberger & David Kelsey, 2007. "Ambiguity," Working Papers 0448, University of Heidelberg, Department of Economics, revised Jul 2007. [Downloadable!]
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  14. Thibault Gajdos & Takashi Hayashi & Jean-Marc Tallon & Jean-Christophe Vergnaud, 2006. "Attitude toward imprecise information," Cahiers de la Maison des Sciences Economiques v06081, Université Panthéon-Sorbonne (Paris 1). [Downloadable!]
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  15. Thibault Gajdos & Jean-Marc Tallon & Jean-Christophe Vergnaud, 2002. "Coping with imprecise information : a decision theoretic approach," Cahiers de la Maison des Sciences Economiques v04056, Université Panthéon-Sorbonne (Paris 1), revised May 2004. [Downloadable!]
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  16. Mary Riddel & W. Shaw, 2006. "A theoretically-consistent empirical model of non-expected utility: An application to nuclear-waste transport," Journal of Risk and Uncertainty, Springer, vol. 32(2), pages 131-150, March. [Downloadable!] (restricted)
  17. Mercè Roca & Robin Hogarth & A. Maule, 2006. "Ambiguity seeking as a result of the status quo bias," Journal of Risk and Uncertainty, Springer, vol. 32(3), pages 175-194, May. [Downloadable!] (restricted)
  18. Fabio Maccheroni & Massimo Marinacci & Aldo Rustichini, 2006. "Dynamic Variational Preferences," Carlo Alberto Notebooks 1, Collegio Carlo Alberto. [Downloadable!]
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  19. Luca Rigotti & Chris Shannon, 2001. "Uncertainty and Risk in Financial Markets," Department of Economics, Working Paper Series 1000, Department of Economics, Institute for Business and Economic Research, UC Berkeley. [Downloadable!]
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  20. Aldo Montesano, 2008. "Effects of Uncertainty Aversion on the Call Option Market," Theory and Decision, Springer, vol. 65(2), pages 97-123, September. [Downloadable!] (restricted)
  21. Massimo Guidolin & Francesca Rinaldi, 2009. "A simple model of trading and pricing risky assets under ambiguity: any lessons for policy-makers?," Working Papers 2009-020, Federal Reserve Bank of St. Louis. [Downloadable!]
  22. Gomes, F. A. R., 2007. "The Effect of Future Income Uncertainty in Savings Decision," Ibmec Working Papers wpe_72, Ibmec Working Paper, Ibmec São Paulo. [Downloadable!]
  23. Sujoy Mukerji, 2003. "Ambiguity Aversion and Cost-Plus Procurement Contracts," Economics Series Working Papers 171, University of Oxford, Department of Economics. [Downloadable!]
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