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Financial Modeling and Option Theory with the Truncated Levy Process

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  • Andrew Matacz

    (University of Sydney, Australia)

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    Abstract

    In recent studies the truncated Levy process (TLP) has been shown to be very promising for the modeling of financial dynamics. In contrast to the Levy process, the TLP has finite moments and can account for both the previously observed excess kurtosis at short timescales, along with the slow convergence to Gaussian at longer timescales. I further test the truncated Levy paradigm using high frequency data from the Australian All Ordinaries share market index. I then consider, for the early Levy dominated regime, the issue of option hedging for two different hedging strategies that are in some sense optimal. These are compared with the usual delta hedging approach and found to differ significantly. I also derive the natural generalization of the Black- Scholes option pricing formula when the underlying security is modeled by a geometric TLP. This generalization would not be possible without the truncation.

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    Bibliographic Info

    Paper provided by EconWPA in its series Finance with number 9710002.

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    Length: 21 pages
    Date of creation: 20 Oct 1997
    Date of revision:
    Handle: RePEc:wpa:wuwpfi:9710002

    Note: 21 pages in Latex, 6 eps figures
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    Web page: http://128.118.178.162

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