1. 纯贴现债券,即zero coupon bond,价格=1000/(1+8%)^5=680.58美元2. 息票=1000*7%=70元假设每年年底付息一次,则价格=70/(1+10%)^1 + 70/(1+10%)^2 + 70/(1+10%)^3 + 70/(1+10%)^4 + 70/(1+10%)^5 + 70/(1+10%)^6 + 70/(1+10%)^7 + 70/(1+10%)^8 + 1000/(1+10%)^8 = 839.95元