Firstly ,it analyzed the prepayment behavior of MBS, and proposed three traditional criteria of prepayment rate for MBS:FHA standard, CPR standard and PSA standard.

• 首先,分析了住房抵押贷款的提前偿付行为,文章阐述了三种描述提前偿付率的惯例标准:联邦住宅管理局经验、有条件的提前偿付率以及公共证券协会提前偿付基准。