Which of these two portfolio shifts would you recommend? Is there a good reason for not selling the Treasury bonds? What other information is needed to make the best decision? Please explain. 6. A bond possesses a duration of 7.68 years. Suppose that market interest rates on comparable bonds were ? pereent this moming, but have now shifted upward to 7.25 percent. What percentage change in the bond's value occurred when interest rates increased by 25 basis points