The Wall Street Journal reports that the current rate on 10-year Treasury bonds is 7.65 percent, on 20-year Treasury bonds is 8.15 percent, and on a 20-year corporate bond is 10.30 percent. Assume that the maturity risk premium is zero. If the default risk premium and liquidity risk premium on a 10-year corporate bond is the same as that on the 20-year corporate bond, what is the current rate on a 10-year corporate bond. 8.70%