An increase in interest rates will generally lower the prices of assets. To see this, calculate the present value of the following two assets at interest rates of 5 percent,
10 percent, and 20 percent per year:
a. A perpetuity yielding $\$ 100$ per year
b. A Christmas tree that will sell for $\$ 50$ one year from now Explain why the price of the long-lived asset is more sensitive to interest-rate changes than the price of the short-lived asset.