每年付息1000*12%=120元
市场利率为10%时,债券发行价格=120/(1+10%)+120/(1+10%)^2+120/(1+10%)^3+120/(1+10%)^4+120/(1+10%)^5+1000/(1+10%)^5=1075.82元
市场利率为12%时,债券发行价格=120/(1+12%)+120/(1+12%)^2+120/(1+12%)^3+120/(1+12%)^4+120/(1+12%)^5+1000/(1+12%)^5=1000元
市场利率为15%时,债券发行价格=120/(1+15%)+120/(1+15%)^2+120/(1+15%)^3+120/(1+15%)^4+120/(1+15%)^5+1000/(1+15%)^5=899.44元本回答被提问者采纳