You deposit $1000 in the bank for one year.
CASE 1: inflation = 0%, nom. interest rate = 10%
CASE 2: inflation = 10%, nom. interest rate = 20%
a. In which case does the real value of your deposit grow the most? Assume the tax rate is 25%.
b. In which case do you pay the most taxes?
c. Compute the after-tax nominal interest rate, then subtract inflation to get the after-tax real interest rate for both cases.