Technical papers/Credit Risk
The impact of PD/LGD correlations on credit risk capital
Empirical studies show that default probabilities and loss given defaults of corporate counterparties are positively correlated due to their common dependency on the businesscycle. Guido Giese applies...
Robert Jarrow and Donald van Deventer show how to estimate default event correlations using a reduced-form model with historical default data. Default event correlations betweentwo firms can be calculated...
Structural and reduced-form models are two well-established approaches to modelling afirm’s default risk. Here, Li Chen, Damir Filipovic/ and Vincent Poor develop a new default riskmodelling strategy...
Using market and credit risk analytics to strengthen performance
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More Technical papers/Credit Risk articles
Maximum likelihood estimate of default correlations
Estimating asset correlations is difficult in practice since there is little available data andmany parameters have to be found. Paul Demey, Jean-Frédéric Jouanin, Céline Roget andThierry Roncalli present a tractable version of the multi-factor Merton...
A credit loss control variable
Viktor Tchistiakov, Jeroen de Smet and Peter-Paul Hoogbruin explain and demonstrate how the efficiency of Monte Carlo simulation in valuing a portfolio of credit risky exposures is improved by the use of the Vasicek distribution as a control variable....
Quantifying operational risk
This is the fifth of Charles Smithson's latest series of Class Notes, which will run in alternate issues of Risk through to the end of 2004. Class Notes is an educational series, designed to pull together the threads of recent developments and thinking...
A credit loss control variable
Viktor Tchistiakov, Jeroen de Smet and Peter-Paul Hoogbruin explain and demonstrate how the efficiency of Monte Carlo simulation in valuing a portfolio of credit risky exposures is improved by the use of the Vasicek distribution as a control variable....
Correlated defaults: let’s go back to the data
Estimates of asset value correlation are a key element of Merton-style credit portfolio models. Many practitioners have access to asset value data for a large universe of listed firms, so estimation is within reach. Alan Pitts describes a statistical...
Cross-market valuation
This article takes the guesswork out of what credit margin to use when valuing credit-risky derivatives, and also sheds light on how relative value trading and capital structure arbitrage may be analysed quantitatively.
The score for credit
Jorge Sobehart and Sean Keenan discuss the benefits and limitations of model performance measures for default and credit spread prediction, and highlight several common pitfalls in the model comparison found in the literature and vendor documentation....
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