This is the beginning of 2023 and you hold a bond maturing at the end of 2027 with a coupon of $50, paid at the end of each of the 5 years, 2023, 2024,2025, 2026, and 2027. The face value of the bond is $1,000. The current yield to maturity of the bond is 4%. a. What is the duration of the bond?
