A multivariate jump-driven financial asset model
Authors:
Elisa Luciano a;
Wim Schoutens b
| Affiliations: | a University of Turin & ICER, Villa Gualino, 63 I-10133 Torino, Italy |
| b K.U. Leuven, U.C.S., B-3001 Leuven, Belgium |
DOI:
10.1080/14697680600806275
Publication Frequency:
8 issues per year
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Abstract
We discuss a L
vy multivariate model for financial assets which incorporates jumps, skewness, kurtosis and stochastic volatility. We use it to describe the behaviour of a series of stocks or indexes and to study a multi-firm, value-based default model. Starting from an independent Brownian world, we introduce jumps and other deviations from normality, including non-Gaussian dependence. We use a stochastic time-change technique and provide the details for a Gamma change. The main feature of the model is the fact that—opposite to other, non-jointly Gaussian settings—its risk-neutral dependence can be calibrated from univariate derivative prices, providing a surprisingly good fit.
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Keywords:
L vy processes;
Multivariate asset modelling;
Copulas;
Risk neutral dependence
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| view references (33) |

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vy multivariate model for financial assets which incorporates jumps, skewness, kurtosis and stochastic volatility. We use it to describe the behaviour of a series of stocks or indexes and to study a multi-firm, value-based default model. Starting from an independent Brownian world, we introduce jumps and other deviations from normality, including non-Gaussian dependence. We use a stochastic time-change technique and provide the details for a Gamma change. The main feature of the model is the fact that—opposite to other, non-jointly Gaussian settings—its risk-neutral dependence can be calibrated from univariate derivative prices, providing a surprisingly good fit.
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