- This topic has 3 replies, 3 voices, and was last updated Mar-209:08 pm by
.
-
Posts
-
-
Up1
Alright, I cannot figure out all of the steps to get the answer to a problem shown in Reading 36, page 128 of Level 2 in the physical book copy.
The bottom of the page is showing steps to solve for a Spot Rate from a Par Rate. Specifically, it’s a 2 year spot rate that we are trying to solve. Any help is greatly appreciated to show all steps to isolate the 2 yr Spot Rate and get the answer they show of 3.008.
Par = 100
Par Rate = 3%
N = 2 yearly payments
1 Yr Par Rate =2.500%
2 Yr Spot Rate = ??equation the reading shows:
3/1.025 + 103 / (1 +r) ^2 = 100I get that 3/1.025 = 2.9268
Then subtracting 2.9268 from both sides gives:
103 / (1+r)^2 = 97.0732
From this point on I get stuck on the exact steps to isolate and solve for r.
-
Up1
103 / (1+r)^2 = 97.0732
103 / 97.0732 = (1+r)^2
1.0611 = (1+r)^2
(1.0611)^(1/2) = 1+r
1+r = 1.0301
r = 0.0301
r = 3.01% -
Up1
Multiply both sides by (1+r)^2. That will get you to => 103*(1+r)^2 / (1+r)^2 = 97.0732*(1+r)^2. The (1+r)^2 term on the left cancels out. And then you divide both sides by 97.0732.
Once you get there you take the square root of both sides to get rid f the square term and subtract 1 from both sides. Leaves you with “r = ……”
-
Up0
Thanks for responding… For the 2nd line you’re showing: 103/97.07 = (1+r)^2. I’m still a little confused. How did you get this line? I “thought” that you would have to multiply both sides by ((1+r)^2) / 1 to arrive at 103 (1+r)^2 = 97.07 (1+r)^2. But I know that’s not right.
-
- You must be logged in to reply to this topic.