Reference no: EM132272027

What numbers are true about the SDA default model: 

1. Under the 100% SDA assumption no one defaults when their mortgage is a few months away from being paid out

2. If you know the beginning pool balance and assume a 200% SDA, you can figure out what the CDR is for each month

3. SDA function for defaults takes the same shape as a PSA function for prepayments

4. SDA stands for Standard Default Assumption

5. If you know the beginning pool balance and assume a 200% SDA, you can figure out what the CDX is for each month

6. The SDA takes into account maturity of the mortgage

Mark all the true statements about CMOs:

1. CMOs are a subset of MBS

2. CMO can have several classes (tranches) of securities backed by the same pool of mortgages

3. In a sequential pay CMO with an A, B and Z tranche, all tranches get their interest payments in the first month except for Z-bonds

4. In a sequential pay CMO, the tranche that gets paid last assumes the least default risk

5. In a sequential pay CMO, the tranche that gets paid off first is protected against con- traction risk