sink the debt,redemption of debt,settlement of debt

Taking the mortgage interest rate,short-term interest and house price as three risk sources,and considering not only the prepayment risk induced by decline of mortgage rate and rise of house price,but also the default risk induced by decline of house price,this paper extended the paper of Kariya et al in 2000,and developed a 3-factor pricing model for fixed rate mortgage-backed securities.

对Kariya等的模型进行了扩展,把抵押贷款市场利率、短期无风险利率和房屋价格视为3个风险来源,考虑了贷款市场利率下降引起的提前偿还风险、房屋价格上升引起的提前偿还风险和房屋价格下降引起的违约风险,建立了固定利率抵押贷款支持证券的三因素定价模型。