The standard PSA prepayment curve assumes prepayments of 0.2% per month for the first 30 months and then 0.5% per month thereafter.

Name: The standard PSA prepayment curve assumes prepayments of 0.2% per month for the first 30 months and then 0.5% per month thereafter.
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This is the standard PSA (Prepayment Speed Assumption) curve used in the mortgage-backed securities market. It assumes prepayments of 0.2% per month for the first 30 months and then 0.5% per month thereafter.

The Standard PSA Prepayment Curve Assumes Prepayments of 0