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Options, Sunspots, and the Creation of Uncertainty

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  • Bowman, David
  • Faust, Jon

Abstract

The authors present two examples in which the addition of an option market leads to sunspot equilibria despite the fact that no sunspot equilibria exist without the market. These examples highlight limitations in two prevalent views of option markets. It is often assumed that option markets help complete otherwise incomplete markets. The authors demonstrate that they can instead increase the number of events agents wish to insure against. As in Fischer Black and Myron Scholes (1973), it is often assumed that option markets are redundant. The authors demonstrate that an option market may not be redundant even when markets were complete before its introduction. Copyright 1997 by the University of Chicago.

Suggested Citation

  • Bowman, David & Faust, Jon, 1997. "Options, Sunspots, and the Creation of Uncertainty," Journal of Political Economy, University of Chicago Press, vol. 105(5), pages 957-975, October.
  • Handle: RePEc:ucp:jpolec:v:105:y:1997:i:5:p:957-75
    DOI: 10.1086/262100
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    3. Galvani, Valentina & Plourde, André, 2010. "Portfolio diversification in energy markets," Energy Economics, Elsevier, vol. 32(2), pages 257-268, March.
    4. Gunther Capelle-Blancard, 2010. "Are derivatives dangerous?," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00605908, HAL.
    5. J. Barkley Rosser, 2001. "Alternative Keynesian and Post Keynesian Perspective on Uncertainty and Expectations," Journal of Post Keynesian Economics, Taylor & Francis Journals, vol. 23(4), pages 545-566, July.
    6. Galvani, Valentina, 2007. "A note on spanning with options," Mathematical Social Sciences, Elsevier, vol. 54(1), pages 106-114, July.

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