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covariates are allowed to change over time, without parametric restrictions (Aalen model), while the contributions of other … indeed change over time. The remaining covariates may be modelled with constant hazard coefficients, thus reducing the number …
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The market for derivatives with payoffs contingent on the credit quality of a number of reference entities has grown considerably over recent years. The risk analysis and valuation of such multi-name structures often relies on simulating the performance of the underlying credits. In this paper...
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