Chapter 8
2. The numerator of Stock A’s beta = 22.9% (0.62 × 37%). The same quantity for Stock B =
32.0% (0.94 × 34%). Because all betas share the same denominator, the stock with the lower
4. If the investment is above the company’s average risk, then the company’s cost of capital is not
an appropriate benchmark. Equivalently, the high risk of the investment places it below the
6. When an investment lies below the market line it is possible to make equal-risk investments
8. a. Using the perpetuity equation, IRR = 6.4/40=16%
b. Kw = [(1–.35)(7.5%)(290) + 14%(20 × 40)]/(290 + 20 × 40) = 11.6%. As long as the
10. Divide the cash flows into two periods: A 15-year annuity of $1,000, and a growing perpetuity
beginning in the 15th year. The value of the 15-year annuity is $6,462.38.
The value of the growing perpetuity at time 15 is $1,000(1 + 0.04)/(0.13 – 0.04) = $11,555.56.
=PV(.13,15,1000) = ($6,462.38)
PV(rate, nper, pmt, [fv], [type])