American option pricing under stochastic volatility : a simulation-based approach

A. Chockalingam, K. Muthuraman

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Abstract

We consider the problem of pricing American options when the volatility of the underlying asset price is stochastic. No specific stochastic volatility model is assumed for the stochastic process. We propose a simulation-based approach to pricing such options. Iteratively, the method determines the optimal exercise boundary and the associated price function for a general stochastic volatility model. Given an initial guess of the optimal exercise boundary, the Retrospective Approximation (RA) technique is used to calculate the associated value function. Using this function, the exercise boundary is improved and the process repeated till convergence. This method is a simulation based variant of the exercise-policy improvement scheme developed in Chockalingam and Muthuraman (2007). An illustration of the method is provided when using the Heston (1993) model to represent the dynamics of the volatility, together with comparisons against existing methods to validate our numerical results.
Original languageEnglish
Title of host publicationProceedings of the 2007 Winter Simulation Conference
EditorsS.G. Henderson, B. Biller, M.H. Hsieh, J. Shortle, J.D. Tew, R.R. Barton
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages992-997
ISBN (Print)978-1-4244-1306-5
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 Winter Simulation Conference, WSC 2007 - Washington, United States
Duration: 9 Dec 200712 Dec 2007

Conference

Conference2007 Winter Simulation Conference, WSC 2007
Abbreviated titleWSC 2007
Country/TerritoryUnited States
CityWashington
Period9/12/0712/12/07

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