Nike is in a 39 percent tax bracket and has a bond outstanding that yields 8 percent to maturity. (show all work)
a. What is Nike’s after-tax cost of debt?
b. Assume that the yield on the bond goes down by 1 percentage point, and due to tax reform, the corporate tax rate falls to 20 percent. What is Nike’s new after-tax cost of debt?
c. Has the after-tax cost of debt gone up or down from part a to part b? Explain why.