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Valuing Bermudan options when asset returns are Levy processes
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UNSPECIFIED (2004) Valuing Bermudan options when asset returns are Levy processes. QUANTITATIVE FINANCE, 4 (1). pp. 87-100. doi:10.1088/1469-7688/4/1/008 ISSN 1469-7688.
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Official URL: http://dx.doi.org/10.1088/1469-7688/4/1/008
Abstract
Evidence from the financial markets suggests that empirical returns distributions, both historical and implied, do not arise from diffusion processes. A growing literature models the returns process as a Levy process, finding a number of explicit formulae for the values of some derivatives in special cases.
Practical use of these models has been hindered by a relative paucity of numerical methods which can be used when explicit solutions are not present. In particular, the valuation of Bermudan options is problematical.
This paper investigates a lattice method that can be used when the returns process is Levy, based upon an approximation to the transition density function of the Levy process. We find alternative derivations of the lattice, stemming from alternative representations of the Levy process, which may be useful if the transition density function is unknown or intractable.
We apply the lattice to models based on the variance-gamma and normal inverse Gaussian processes. We find that the lattice is able to price Bermudan-style options to an acceptable level of accuracy.
Item Type: | Journal Article | ||||
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Subjects: | H Social Sciences > HG Finance H Social Sciences > HC Economic History and Conditions Q Science > QA Mathematics H Social Sciences |
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Journal or Publication Title: | QUANTITATIVE FINANCE | ||||
Publisher: | IOP PUBLISHING LTD | ||||
ISSN: | 1469-7688 | ||||
Official Date: | February 2004 | ||||
Dates: |
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Volume: | 4 | ||||
Number: | 1 | ||||
Number of Pages: | 14 | ||||
Page Range: | pp. 87-100 | ||||
DOI: | 10.1088/1469-7688/4/1/008 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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