Risk magazine - Volume17/No7

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. An…

Local cross-entropy

One way of addressing the inconsistency between exchange-traded options prices and the Black-Scholes model is to attempt to find alternative risk-neutral distributions that are more consistent. However, non-uniqueness means an additional criterion is…

Component proponents II

Christophe Pérignon and Christophe Villa propose a novel method of extracting the risk factors driving interest rates that allows both the covariance matrix of interest rates and the variances of the risk factors to vary through time. To illustrate the…

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