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Abstract

Many derivatives products are directly or indirectlyassociated with integrated diffusion processes. We develop a general perturbation method to price those derivatives. We show that for any positive diffusion process, the hitting time of its integrated process is approximately normally distributed when the diffusion coefficient is small. This result of approximate normality enables us to reduce many derivative pricing problems to simple expectations. We illustrate the generality and accuracy of this probabilistic approach with several examples in the Heston model, including variance derivatives, European vanilla options, timer forwards, and timer options. Major advantages of the proposed technique include extremely fast computational speed, ease of implementation, and analytic tractability.



Item Type: MPRA Paper -

Original Title: Derivatives Pricing on Integrated Diffusion Processes: A General Perturbation Approach-

English Title: Derivatives Pricing on Integrated Diffusion Processes: A General Perturbation Approach-

Language: English-

Keywords: Integrated diffusion process; Asymptotic expansion; Hitting time; Derivative pricing; Timer options-

Subjects: C - Mathematical and Quantitative Methods > C0 - General > C02 - Mathematical MethodsG - Financial Economics > G1 - General Financial Markets > G12 - Asset Pricing ; Trading Volume ; Bond Interest RatesG - Financial Economics > G1 - General Financial Markets > G13 - Contingent Pricing ; Futures Pricing-





Autor: Li, Minqiang

Fuente: https://mpra.ub.uni-muenchen.de/54595/







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