How should a long term bond initially be valued?

A long-term bond should initially be valued based on the present value of its future cash flows, which include periodic coupon payments and the principal repayment at maturity. The discount rate used to calculate the present value typically reflects the market interest rates for bonds of similar credit quality and duration. Additionally, factors such as the issuer's credit risk and prevailing economic conditions can also influence the bond's initial valuation. Ultimately, the bond's price should equate to the sum of these discounted cash flows.