CHAPTER 14
CAPITAL STRUCTURE: BASIC
CONCEPTS
Answers to Concept Questions
1. Assumptions of the Modigliani-Miller theory in a world without taxes: 1) Individuals can borrow at
the same interest rate at which the firm borrows. Since investors can purchase securities on margin, an
individual’s effective interest rate is probably no higher than that for a firm. Therefore, this assumption
is reasonable when applying MM’s theory to the real world. If a firm were able to borrow at a rate
lower than individuals, the firm’s value would increase through corporate leverage. As MM
2. False. A reduction in leverage will decrease both the risk of the stock and its expected return.
out and leave the price of the stock and the overall value of the firm unchanged.
3. False. Modigliani-Miller Proposition II (No Taxes) states that the required return on a firm’s equity is
4. Interest payments are tax deductible, where payments to shareholders (dividends) are not tax
deductible.
5. Business risk is the equity risk arising from the nature of the firm’s operating activity, and is directly
related to the systematic risk of the firm’s assets. Financial risk is the equity risk that is due entirely to
the firm’s chosen capital structure. As financial leverage, or the use of debt financing, increases, so
6. No, it doesn’t follow. While it is true that the equity and debt costs are rising, the key thing to remember
is that the cost of debt is still less than the cost of equity. Since we are using more and more debt, the
7. Because many relevant factors such as bankruptcy costs, tax asymmetries, and agency costs cannot
easily be identified or quantified, it’s practically impossible to determine the precise debt/equity ratio
that maximizes the value of the firm. However, if the firm’s cost of new debt suddenly becomes much
8. It’s called leverage (or “gearing” in the UK) because it magnifies gains or losses.