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حسابداری و مالی::
نرخ ماندگاری
Survival Rate This is the proportion of issuers initially rated R that will not have de- faulted by T :
- After 1 year, the survival rate is S1 = 0.95.
- After 2 years, the survival rate is (1 - d1)(1 - d2) = 0.95 � 0.93 = 0.8835.
b) This is one minus the survival rate over 3 years: S3(R) = (1 - d1)(1 - d2)(1 - d3) =
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