In this question, please assume that all bonds pay coupon annually, and the yield is on an annual basis. You are considering a callable corporate bond with 3 years to maturity and the coupon rate of 5.5% (paid annually), callable in one year at 100 (per 100 par). The bond currently trades at 101.5. The benchmark 3-year Treasury note trades at 3.7665% yield. Use the risk-free rate tree below to answer the following questions:

c. Is the OAS in (b) higher or lower than the credit spread in (a)? Explain briefly why.

Risk-Free Rates t= 0 z(0) 0.03000 z(1H) z(1L) 0.04475 z(2HH) 0.03000 z(2LH) Z(2LL) 0.06677 0.04475 0.03000 Risk-Free Rates t= 0 z(0) 0.03000 z(1H) z(1L) 0.04475 z(2HH) 0.03000 z(2LH) Z(2LL) 0.06677 0.04475 0.03000