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The Harrison originated a pool containing 40 ten-year fixed interest rate mortga

ID: 2798629 • Letter: T

Question

The Harrison originated a pool containing 40 ten-year fixed interest rate mortgages with an average balance of $50,000 each. All mortgages in the pool carry a coupon of 10%. (For simplicity, assume that all mortgage payments are made annually at 10% interest.). Assume a constant annual prepayment rate of 10% (for simplicity, assume that prepayments are based on the pool balance at the end of the preceding year and begin at the end of year 1). Below is the pool’s cash flows:

Principal

Principal and

End of

Pool

due to

Interest Pmts

Year

Balance

Prepayment

to Issuer

1

1,674,509

200,000

325,491

2

1,383,747

167,451

290,763

3

1,124,372

138,375

259,375

4

893,419

112,437

230,952

5

688,284

89,342

205,136

6

506,716

68,828

181,568

7

346,862

50,672

159,854

8

207,384

34,686

139,478

9

87,891

20,738

119,493

10

0

0

(A)

What is the answer for the blank (A) in the table above?

$119,493

108,235

$96,680

$0.000

Principal

Principal and

End of

Pool

due to

Interest Pmts

Year

Balance

Prepayment

to Issuer

1

1,674,509

200,000

325,491

2

1,383,747

167,451

290,763

3

1,124,372

138,375

259,375

4

893,419

112,437

230,952

5

688,284

89,342

205,136

6

506,716

68,828

181,568

7

346,862

50,672

159,854

8

207,384

34,686

139,478

9

87,891

20,738

119,493

10

0

0

(A)

Explanation / Answer

Solution :

Principal & Interest payment to the issuer = ($87891*10%) + $ 87891

= $ 96680

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