VL = VU + tCB
With debt being 50 percent of the value of the levered firm, D must equal (.50)VL, so:
If the debt is 100 percent of the levered value, D must equal VL, so:
VL = VU + T[(1.0)(VL]
19. According to M&M Proposition I with taxes, the increase in the value of the company will be the
present value of the interest tax shield. Since the loan will be repaid in equal installments, we need to
find the loan interest and the interest tax shield each year. The loan schedule will be:
Year Loan Balance Interest Tax Shield
So, the increase in the value of the company is:
20. a. Since Alpha Corporation is an all-equity firm, its value is equal to the market value of its
outstanding shares. Alpha has 18,000 shares of common stock outstanding, worth $35 per
share, so the value of Alpha Corporation is:
b. Modigliani-Miller Proposition I states that in the absence of taxes, the value of a levered firm
equals the value of an otherwise identical unlevered firm. Since Beta Corporation is identical to
c. The value of a levered firm equals the market value of its debt plus the market value of its
equity. So, the value of Beta’s equity is:
d. The investor would need to invest 20 percent of the total market value of Alpha’s equity, which
is: