You can find an online bond calculator at www.smartmoney.com. Follow the “Economy & Bonds” link and then click on the “Bond Calculator” link. What is the YTM for a bond that matures in August 2015 with a coupon rate of 9 percent and current price of 104.5? What about a bond with the same coupon and price that matures in August 2028? Why don’t the bonds have the same price?