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We introduce a tractable class of non-affine price processes with multifrequency stochastic volatility and jumps. The specifi cations require few fixed parameters and deliver fast option pricing. One key ingredient is a tight link between jumps and volatility regimes, as asset pricing theory...
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French Abstract: Les Credit Default Swaps (CDS) sont de plus en plus populaires pour la protection contre les défauts et la spéculation. Cette étude se concentre sur la modélisation précise du défaut en temps continu, puis sur l'evaluation des CDS. De nombreux cas entraînent l'annulation...
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nine different sampling methods for generating subgraphs that recover four structural characteristics of importance to … network. Via extensive simulations, we find that sampling methods differ substantially in their ability to recover network … characteristics. Traditional sampling procedures, such as random node sampling, result in poor subgraphs. When the focus is on …
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