Suppose that a typical taxpayer has a marginal personal income tax rate of 35 percent The nominal interest rate is 13 percent and the expected inflation rate is 8 percent. a. What is the real...

a. What is the real after-tax rate of interest?

b. Suppose that the expected inflation rate increases by 3 percentage points co II per-cent, and the nominal interest rate increases by the same amount What happens to the real after-tax rate of return? yr. If the inflation rate increases as in part b, by how much would the nominal interest rate have to increase to keep the real after-tax interest ram at the same level as in part a? Can you generalize your answer using an algebraic formula?