We propose a methodology for assessing model risk and apply it to the implied volatility function (IVF) model. This is a popular model among traders for valuing exotic options. Our research is different from other tests of the IVF model in that we reflect the traders' practice of using the model...

This paper presents a generalized version of the lattice approach to pricing options. It shows how the control variate technique can produce significant improvements in the efficiency of the approach. The control variate technique is illustrated using American puts on dividend and nondividend...

The first part of this paper presents a general approach to valuing a financial institution's contracts when there is credit risk. The approach uses contingent claims pricing theory and is particularly appropriate for an off-balance sheet contract, such as a swap, that can have either a positive...