Marginal density expansions for diffusions and stochastic volatility, part II: Applications [to the Stein--Stein model]

J. D. Deuschel, P. K. Friz, Antoine Jacquier () and S. Violante

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Abstract: In the compagnion paper [Marginal density expansions for diffusions and stochastic volatility, part I] we discussed density expansions for multidimensional diffusions $(X^1,...,X^d)$, at fixed time $T$ and projected to their first $l$ coordinates, in the small noise regime. Global conditions were found which replace the well-known "not-in-cutlocus" condition known from heat-kernel asymptotics. In the present paper we discuss financial applications; these include tail and implied volatility asymptotics in some correlated stochastic volatility models. In particular, we solve a problem left open by A. Gulisashvili and E.M. Stein (2009).

Date: 2013-05
New Economics Papers: this item is included in nep-ets
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