This paper uses a multivariate normal inverse Gaussian model to develop closed-form pricing formulas for both geometric and arithmetic basket options. For geometric basket options, an exact analytical solution is possible; for arithmetic basket options, the formula is an approximation. The model...

This study advances the mortgage insurance pricing literature by providing theory and methods for incorporating both equity and ability to-pay theories (Jackson and Kasserman, 1980). We develop a new option-based model by adding the current loan-to-value and debt service ratios to the pricing...