Fundamentals of Investments Valuation and Management, 10th Edition Jordan
Chapter 1-21
Chapter 1
A Brief History of Risk and Return
Concept Questions
1. For both risk and return, increasing order is b, c, a, d. On average, the higher the risk of an i
nvestment, the higher is its expected return.
2. Since the price didn’t change, the capital gains yield was zero. If the total return was four per
cent, then the dividend yield must be four percent.
3. It is impossible to lose more than –
100 percent of your investment. Therefore, return distributions are cut off on the lower tail at –
100 percent; if returns were truly normally distributed, you could lose much more.
4. To calculate an arithmetic return, you sum the returns and divide by the number of returns.
As such, arithmetic returns do not account for the effects of compounding (and, in particular,
the effect of volatility). Geometric returns do account for the effects of compounding and f
or changes in the base used for each year’s calculation of returns. As an investor, the more
important return of an asset is the geometric return.
5. Blume’s formula uses the arithmetic and geometric returns along with the number of observat
ions to approximate a holding period return. When predicting a holding period return, the ari
thmetic return will tend to be too high and the geometric return will tend to be too low. Blum
e’s formula adjusts these returns for different holding period expected returns.
6. T-
bill rates were highest in the early eighties since inflation at the time was relatively high. A
s we discuss in our chapter on interest rates, rates on T-
bills will almost always be slightly higher than the expected rate of inflation.
7. Risk premiums are about the same regardless of whether we account for inflation. The reaso
n is that risk premiums are the difference between two returns, so inflation essentially nets o
ut.
8. Returns, risk premiums, and volatility would all be lower than we estimated because aftertax
returns are smaller than pretax returns. 1
,9. We have seen that T-
bills barely kept up with inflation before taxes. After taxes, investors in T-
bills actually lost ground (assuming anything other than a very low tax rate). Thus, an all T-
bill strategy will probably lose money in real dollars for a taxable investor.
10. It is important not to lose sight of the fact that the results we have discussed cover over 80J
years, well beyond the investing lifetime for most of us. There have been extended periods
during which small stocks have done terribly. Thus, one reason most investors will choose n
ot to pursue a 100 percent stock (particularly small-
cap stocks) strategy is that many investors have relatively short horizons, and high volatility in
vestments may be very inappropriate in such cases. There are other reasons, but we will def
er discussion of these to later chapters.
11.
Solutions to Questions and Problems
NOTE: All end of chapter problems were solved using a spreadsheet. Many problems require multiple
steps. Due to space and readability constraints, when these intermediate steps are included in this
solutions manual, rounding may appear to have occurred. However, the final answer for each pr
oblem is found without rounding during any step in the problem.
Core Questions
1. Total dollar return = 100($41 – $37 + $.28) = $428.00
Whether you choose to sell the stock does not affect the gain or loss for the year; your sto
ck is worth what it would bring if you sold it. Whether you choose to do so or not is irrel
evant (ignoring commissions and taxes).
2. Capital gains yieldJ A J $41JA–
$37 / $37 .1081, or 10.81% Dividend yield $.28/$37 .0076, or .76%
Total rate of return 10.81% .76% 11.57%
3. Dollar return = 500($34 – $37 + $.28) = –$1,360
Capital gains yieldJ A J $34J A – $37 /$37 –.0811, or –8.11%
Dividend yield $.28/$37
.0076, or .76% Total rate of return = –
8.11% + .76% = –7.35%
4.
a. average return = 6.0%, average risk premium = 2.7%
b. average return = 3.3%, average risk premium = 0%
c. average return = 12.3%, average risk premium = 9.0%
d. average return = 16.3%, average risk premium = 13.0%
2
,5. Cherry average return 17% 11% – 2% 3% 14%J A /5 8.60% Straw average return
16% 18% – 6% 1% 22%J A /5 10.20%
6. Cherry: RA 8.60%
Var .17 – .086J JA
2
.11 – .086J JA
2
–.02 – .086J JA
2
.03 – .086J JA
2
.14 – .086J A
2
.00623
1/2
Standard deviation .00623J .0789, or 7.89%
Straw: RB 10.20%
Var 1/ 4 .16 – .102 2 .18 – .102 JA
2 –.06 – .102 A
2 .01 – .102 J A
2 .22 – .102J JA
2
.01452
1/2
Standard deviation .01452J .1205, or 12.05%
7. The capital gains yield is $59 – $65J A /$65 –.0923, or –
9.23% (notice the negative sign). With a dividend yield of 1.2 percent, the total return is –
8.03%.
8. Geometric return 1 .17 1 .11 1 .02 1 .03 1 .14 (1/5) – 1 .0837,
or 8.37%
9. Arithmetic return .21 .12 .07 –.13 – .04 .26J /JA6 .0817, or 8.17%
(1/6)
Geometric return 1 .21 1 .12 1 .07 1 – .13 1 – .04 1 .26 –
1
.0730, or 7.30%
Intermediate Questions
10. That’s plus or minus one standard deviation, so about two-
thirds of the time, or two years out of three. In one year out of three, you will be outside this
range, implying that you will be below it one year out of six and above it one year out of six.
3
, 11. You lose money if you have a negative return. With a 12 percent expected return and a 6 perce
nt standard deviation, a zero return is two standard deviations below the average. The odds of b
eing outside (above or below) two standard deviations are 5 percent; the odds of being below ar
e half that, or 2.5 percent. (It’s actually 2.28 percent.) You should expect to lose money only 2.
5 years out of every 100. It’s a pretty safe investment.
12. The average return is 6.0 percent, with a standard deviation of 9.8 percent, so Prob(Return < –
3.8 orJAReturn 15.8 )
1/3, but we are only interested in one tail; Prob Return –3.9 1/ 6
, which is half of 1/3 (or about 16%) .
95%: 6.0 ± 2σ = 6.0 ± 2(9.8) = –13.6% to 25.6%
99%: 6.0 ± 3σ = 6.0 ± 3(9.8) = –23.4% to 35.4%
13. Expected return = 16.4%; σ = 31.2%. Doubling your money is a 100% return, so if the return distributio
n
is normal, Z 100 – 16..2 2.68 standard deviations; this is in-
between two and three standard deviations, so the probability is small, somewhere between .5% a
nd 2.5% (why?). Referring to the nearest Z table, the actual probability is = 0.369%, or less tha
nJAevery 100JAyears. Tripling your money would be Z
200 –
16.4 / 31.2 5.88 standard deviations; this corresponds to a probability of (much) less than 0.01
%. (The actual answer is less than once every 1 million years, so don’t hold your breath.)
14.
Year Common stocks T-bill return Risk premium
1973 –14.69% 7.29% –21.98%
1974 –26.47% 7.99% –34.46%
1975 37.23% 5.87% 31.36%
1796 23.93% 5.07% 18.86%
1977 –7.16% 5.45% –12.61%
sum 12.84% 31.67% –18.83%
a. Annual risk premium = Common stock return – T-bill return (see table above).
b. Average returns: Common stocks 12.84/5 .0257, or 2.57%; T-bills 31.67/5
.0633 , or 6.33% Risk premium –18.83/5 –.0377, or –3.77%
c. Common stocks: Var 1/ 4[ –.1469 – .0257 JA
2
–.2647 – .0257 JA
2
.3723 – .0257 2
.2393 – .0257J A A
2
–.0716 – .0257J A 2
] .072337
1/2
Standard deviation 0.072337 .2690, or 26.90%
T-bills: Var 1/ 4 .0729 – .0633 JA
2
.0799 – .0633 JA
2
.0587 – .0633 J A
2
.0507 –.0633 2
4