Term structure general note

Discussion in 'CT1' started by actuary111, Sep 17, 2015.

  1. actuary111

    actuary111 Member

    When we are given the annual term structure in the form (6%,6%,6%,6%,7%) for a 5-year fixed interest security (like in Question 14.11), does the term structure represent the annual spot rates?

    In other words, in this case, is the following true?
    (6%,6%,6%,6%,7%)=(y1,y2,y3,y4,y5), where yt represents the t-year spot rate of interest.

    So when we are given a term structure in this form, is it always made up of spot rates? Or are there any cases that the term structure will involve forward rates?

    Any help would be greatly appreciated!

    Thank you:)
     
  2. actuary111

    actuary111 Member

    Any ideas?:)
     
  3. Term structure represents the annual return on a n-yr ZERO-COUPON bonds. They are n-yr spot rates. You can use them to work out yield on bonds that do pay coupons.

    To work out n-yr spot rates you need the current 1-yr spot rate and future 1-yr spot rates

    y2 (2-yr spot rate) represents the annual return on a two year zero-coupon bond.

    y2 = ((1+y1)(1+f11))^(1/2)

    similarly:

    y3 = ((1+y1)(1+f11)(1+f21))^(1/3), and so on...

    y1 is current 1-yr spot rate
    f11 is a fwd rate, it is 1-yr spot rate in 1 years time
    f21 is 1 yr spot rate in 2 years time.


    Good luck.
     
    Last edited by a moderator: Sep 27, 2015

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