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The Valuation of Basket Credit Derivatives: A Copula Function ...

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Default Correlation: <strong>The</strong> Joy <strong>of</strong> <strong>Copula</strong>s<br />

● We first know the marginal distribution <strong>of</strong> survival<br />

time for each credit<br />

● We need to construct a joint distribution with given<br />

marginals and a correlation structures<br />

● <strong>Copula</strong> function in multivariate statistics can be used<br />

● <strong>The</strong> correlation parameters used in copula function<br />

can be interpreted as the asset correlation between<br />

two credits used in <strong>Credit</strong>Metrics

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