Final answer:
The WACC before tax reform was calculated to be 5.17%, and after the reform, it was calculated to be 5.422%, given the costs of equity and debt as well as the firm's capital structure.
Step-by-step explanation:
The student's question pertains to the calculation of the Weighted Average Cost of Capital (WACC) before and after a corporate tax decrease from 35% to 21%. The firm uses a financing structure of 40% equity and 60% debt with the costs of equity and debt given as 10% and 3%, respectively. The WACC formula is:
WACC = E/V * Re + D/V * Rd * (1-Tc)
Where:
- E = Market value of equity
- V = Total market value of equity and debt
- Re = Cost of equity
- D = Market value of debt
- Rd = Cost of debt
- Tc = Corporate tax rate
Before the tax reform:
WACC = 0.40 * 0.10 + 0.60 * 0.03 * (1-0.35) = 0.04 + 0.0117 = 0.0517 or 5.17%
After the tax reform:
WACC = 0.40 * 0.10 + 0.60 * 0.03 * (1-0.21) = 0.04 + 0.01422 = 0.05422 or 5.422%
The WACC before tax reform was 5.17%, and after the reform, it is 5.422%.