Adding and subtracting Black-Scholes: A new approach to approximating derivative prices in continuous-time models

Dennis Kristensen and Antonio Mele

Journal of Financial Economics, 2011, vol. 102, issue 2, 390-415

Abstract: We develop a new approach to approximating asset prices in the context of continuous-time models. For any pricing model that lacks a closed-form solution, we provide a closed-form approximate solution, which relies on the expansion of the intractable model around an “auxiliary” one. We derive an expression for the difference between the true (but unknown) price and the auxiliary one, which we approximate in closed-form, and use to create increasingly improved refinements to the initial mispricing induced by the auxiliary model. The approach is intuitive, simple to implement, and leads to fast and extremely accurate approximations. We illustrate this method in a variety of contexts including option pricing with stochastic volatility, computation of Greeks, and the term structure of interest rates.

Keywords: Continuous-time models; Option pricing theory; Stochastic volatility; Closed-form approximations (search for similar items in EconPapers)
JEL-codes: C63 G12 G13 (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (24)

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Related works:
Working Paper: Adding and Subtracting Black-Scholes: A New Approach to Approximating Derivative Prices in Continuous Time Models (2009)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:jfinec:v:102:y:2011:i:2:p:390-415

DOI: 10.1016/j.jfineco.2011.05.007

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