Putting the smile back on the face of derivatives

This article considers the exponential-quadratic Gaussian model, an extension of the familiar quadratic Gaussian model with application in the pricing of hybrid exotics. The principal attraction of the approach is its capacity to provide flexible smile behaviour in a multi-factor cross-asset term-structure setting, while retaining simple closed-form analytic expressions for the financial variables. The analysis combines the potential models originating in the work of Rogers (1997) with results