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Financial Innovation, Values and Volatilities when Markets Are Incomplete*

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  • Jerome B. Detemple

    (Columbia University, New York, NY, 10027)

Abstract

The traditional pricing methodology in finance values derivative securities as redundant assets that have no impact on equilibrium prices and allocations. This paper considers a model with incomplete markets in which the valuation of derivative securities cannot be treated independently from the valuation of the primary securities. The model constitutes a framework for the analysis of the consequences of financial innovation (creation of new contracts or modification of existing contracts). We provide a numerical counterexample to the popular belief that financial innovations that increase the volatilities of traded securities are “bad†. In this example the introduction of an option increases the volatility of the rate of return on the underlying stock, yet the creation of this asset is unanimously supported by investors. The Geneva Papers on Risk and Insurance Theory (1990) 15, 47–53. doi:10.1007/BF01498459

Suggested Citation

  • Jerome B. Detemple, 1990. "Financial Innovation, Values and Volatilities when Markets Are Incomplete*," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 15(1), pages 47-53, March.
    • Handle: RePEc:pal:genrir:v:15:y:1990:i:1:p:47-53
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    Cited by:

    1. Liu, Wen-Rang & Chiang, Yao-Min & Chung, San-Lin, 2024. "Dividend-tax avoidance trade and its impact on the stock market," Pacific-Basin Finance Journal, Elsevier, vol. 85(C).
    2. Berkowitz, Jason P. & Depken, Craig A. & Gandar, John M., 2015. "Information and accuracy in pricing: Evidence from the NCAA men׳s basketball betting market," Journal of Financial Markets, Elsevier, vol. 25(C), pages 16-32.
    3. Uppal, Raman & Bhamra, Harjoat Singh, 2006. "The Effect of Introducing a Non-redundant Derivative on the Volatility of Stock-Market Returns," CEPR Discussion Papers 5726, C.E.P.R. Discussion Papers.
    4. Faff, Robert & Hillier, David, 2005. "Complete markets, informed trading and equity option introductions," Journal of Banking & Finance, Elsevier, vol. 29(6), pages 1359-1384, June.
    5. Jean-François L'Her & Jean-Marc Suret, 1995. "Heterogeneous Expectations, Short Sales Regulation and the Risk Return Relationship," CIRANO Working Papers 95s-29, CIRANO.

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