Pricing average options under time-changed Lévy processes

Akira Yamazaki ()

Review of Derivatives Research, 2014, vol. 17, issue 1, 79-111

Abstract: This paper presents an approximate formula for pricing average options when the underlying asset price is driven by time-changed Lévy processes. Time-changed Lévy processes are attractive to use for a driving factor of underlying prices because the processes provide a flexible framework for generating jumps, capturing stochastic volatility as the random time change, and introducing the leverage effect. There have been very few studies dealing with pricing problems of exotic derivatives on time-changed Lévy processes in contrast to standard European derivatives. Our pricing formula is based on the Gram–Charlier expansion and the key of the formula is to find analytic treatments for computing the moments of the normalized average asset price. In numerical examples, we demonstrate that our formula give accurate values of average call options when adopting Heston’s stochastic volatility model, VG-CIR, and NIG-CIR models. Copyright Springer Science+Business Media New York 2014

Keywords: Average options; Time-changed Lévy processes; Gram–Charlier expansion; Affine processes; Quadratic Gaussian processes; G13; C63 (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (16)

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DOI: 10.1007/s11147-013-9091-7

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