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Subadditive probabilities and portfolio inertia

Author

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  • Simonsen, Mario Henrique
  • Werlang, Sérgio Ribeiro da Costa

Abstract

We show that in the presence of uncertainty (in the sense of Knight), as axiomatized by Schmeidler (1982, 1984) and Gilboa (1987) (as opposed to the classical view of Savage (1954)) one may obtain portfolio inertia with positive quantities held of all assets. We also present a comprehensive survey of the recent literature on uncertainty, with special emphasis on the subadditive probabilities model.
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Suggested Citation

  • Simonsen, Mario Henrique & Werlang, Sérgio Ribeiro da Costa, 1990. "Subadditive probabilities and portfolio inertia," FGV EPGE Economics Working Papers (Ensaios Economicos da EPGE) 162, EPGE Brazilian School of Economics and Finance - FGV EPGE (Brazil).
    • Handle: RePEc:fgv:epgewp:162
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    Cited by:

    1. Boff, Hugo Pedro & Werlang, Sérgio Ribeiro da Costa, 1996. "Oligopolistic competition under knightian uncertainty," FGV EPGE Economics Working Papers (Ensaios Economicos da EPGE) 282, EPGE Brazilian School of Economics and Finance - FGV EPGE (Brazil).
    2. Camerer, Colin & Weber, Martin, 1992. "Recent Developments in Modeling Preferences: Uncertainty and Ambiguity," Journal of Risk and Uncertainty, Springer, vol. 5(4), pages 325-370, October.
    3. Werlang, Sérgio Ribeiro da Costa, 2000. "A notion of subgame perfect Nash equilibrium under knightian uncertainty," FGV EPGE Economics Working Papers (Ensaios Economicos da EPGE) 376, EPGE Brazilian School of Economics and Finance - FGV EPGE (Brazil).
    4. Ben-Rephael, Azi & Cookson, J. Anthony & izhakian, yehuda, 2022. "Trading, Ambiguity and Information in the Options Market," SocArXiv ewunv, Center for Open Science.
    5. repec:osf:socarx:ewunv_v1 is not listed on IDEAS
    6. Junyong He & Helen Hui Huang & Shunming Zhang, 2020. "Ambiguity Aversion, Information Acquisition, and Market Opacity," Annals of Economics and Finance, Society for AEF, vol. 21(2), pages 263-329, November.
    7. Ghirardato, Paolo, 1997. "On Independence for Non-Additive Measures, with a Fubini Theorem," Journal of Economic Theory, Elsevier, vol. 73(2), pages 261-291, April.
    8. Dirk G. Baur & Thomas K.J. McDermott, 2011. "Safe Haven Assets and Investor Behaviour Under Uncertainty," The Institute for International Integration Studies Discussion Paper Series iiisdp392, IIIS, revised Feb 2012.

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