Alex O. Williams thoroughly examines the nature and sources of mortgage portfolio risk, the analysis of that risk, and the methods for identifying and guarding against it. Following a discussion of regulation and the mortgage market, Williams describes the portfolio diversification approach to controlling risk in mortgage portfolios. He then examines four systems for analyzing portfolio risk: the regression method of mortgage risk analysis, the linear probability model, cohort analysis of delinquency risk, and a discriminant functional classification model used to measure default risk. He...