The book draws on current research on model risk and parameter
sensitivity of securitisation ratings. It provides practical ideas and
tools that can facilitate a more informed usage of securitisation
ratings. We show how global sensitivity analysis techniques can be used
to better analyse and to enhance the understanding of the uncertainties
inherent in ratings due to uncertainty in the input parameters. The text
introduces a novel global rating approach that takes the uncertainty in
the ratings into account when assigning ratings to securitisation
products. The book also covers new prepayment and default models that
overcome flaws in current models.