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Paper #968

Title:
On the short-time behavior of the implied volatility for jump-diffusion models with stochastic volatility
Authors:
Elisa Alòs, Jorge A. León and Josep Vives
Date:
June 2006
Abstract:
In this paper we use Malliavin calculus techniques to obtain an expression for the short-time behavior of the at-the-money implied volatility skew for a generalization of the Bates model, where the volatility does not need to be neither a difussion, nor a Markov process as the examples in section 7 show. This expression depends on the derivative of the volatility in the sense of Malliavin calculus.
Keywords:
Black-Scholes formula, derivative operator, Itô's formula for the Skorohod integral, jump-diffusion stochastic volatility model
JEL codes:
G12, G13
Area of Research:
Statistics, Econometrics and Quantitative Methods
Published in:
Finance Stoch (2007) 11: 571- 589

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