Throughout the problems, all interest rates yields are based on the semiannual compounding convention. All coupon bonds pay coupons twice per year with the first payment to be made 6 months from today. All interest rates and yields should be assumed to be strictly positive. = 0.1 and the par- Problem 4. Given that the annuity yield for maturity 10 years is ya (10) coupon yield for maturity 10 years is ypc (10) = 0.08, determine the 10-year spot rate (10).