RT Journal Article SR Electronic T1 Evaluation of Mortgage Credit Risk JF The Journal of Fixed Income FD Institutional Investor Journals SP 43 OP 54 DO 10.3905/jfi.2012.21.4.043 VO 21 IS 4 A1 Lakhbir Hayre A1 Sudhir Chiluveru YR 2012 UL https://pm-research.com/content/21/4/43.abstract AB This article describes a stochastic home price appreciation (HPA) model that can be used to obtain random paths of simulated home prices that are consistent with historical behavior and with market-implied HPA. The stochastic HPA model has been integrated with Citi’s prepayment, default, term structure, and MOATS models and can be used to calculate credit-adjusted option-adjusted spread (OAS) for non-agency mortgage-backed securities and loans. The credit-adjusted OAS model is available to users via the Yield Book.TOPICS: MBS and residential mortgage loans, credit risk management, factor-based models