C H A P T E R
2 5
International
Diversification
903
Figure 25.6
Information ratios of developed and emerging markets against U.S. dollar-denominated
returns, 2002–2011
–0.2
–0.1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0
5
10
15
20
25
Information Ratio
Rank
Markets are sorted by information ratio from low to high
25
24
23
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
22
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Developed + World
Emerging
1
Ireland
Taiwan
2
Greece
Jordan
3
Finland
Argentina
4
Italy
Hungary
5
Belgium
Turkey
6
Japan
Poland
7
Portugal
Russia
8
France
Sri
Lanka
9
Netherlands Philippines
10 U.K.
India
11 Germany Korea
12 Israel
China
13 Austria
Pakistan
14 Spain
Morocco
15 Hong
Kong
Egypt
16 Switzerland
Malaysia
17 Sweden Brazil
18
New Zealand South Africa
19 Singapore Chile
20 Norway Thailand
21 Denmark Mexico
22 Canada
Peru
23 Australia Czech
Republic
24
Indonesia
25
Colombia
Rank Developed Emerging
Rank Legend
we compare emerging and developed markets using returns in local currencies. Recall that
U.S. investors can achieve such returns by hedging the currencies of the country portfolios
in which they invest.
Is Exchange Rate Risk Important in International Portfolios?
Table 25.3 revealed that changes in exchange rates vary widely across country pairs.
In Figures 25.7 to 25.10 we compare results for SD, beta coefficients, average excess
return, and information ratios for both developed and emerging markets using dollar and
local-currency returns. Figures 25.7 and 25.8 look at the issue of risk. Both measures
show that returns in local currency are convincingly less risky than dollar-denominated
returns. The difference (at least over the recent 10 years) is greater when comparing
beta. Remember, however, that this result applies only to adding one country to the U.S.
portfolio; relative contributions to risk could change if one were to consider broader
diversification.
Hedging currency risk when investing internationally is often undertaken to reduce
overall portfolio risk. However, the decision of whether to hedge foreign currencies in
an internationally diversified portfolio can also be made as part of active management. If
a portfolio manager believes the U.S. dollar is overvalued against a given currency, then
hedging the exposure to that currency would, if correct, enhance the portfolio return in U.S.
dollars. The potential gain from this decision depends on the weight of that currency in the
overall portfolio. Such a decision applied to investments in only one country would have a
small effect on overall risk. But what if the manager estimates that the dollar is generally
overvalued against most or all currencies? In this case, hedging the entire exposure would
constitute a bet with significant effect on total risk. At the same time, if the decision is
correct, such a large position can provide handsome gains.
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904
P A R T V I I
Applied Portfolio Management
Figure 25.8
Market beta against U.S. using dollar-denominated and local-currency excess returns, 2002–2011
1
2 3
4
5
6
7
8 9
10 11 12
13
14 15
16 17 18
19 20
21 22 23 24
25
26 27
28 29
30 31 32 33 34
35 36
37
38 39 40
41 42 43 44
45 46 47
48
1
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1617
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30
31323334
3536
37
38
3940
41
42
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44
45
46
47
48
0
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
1.7
5
10
15
20
25
30
35
40
45
50
Beta of Dollar-Denominated and
Local-Currency Excess Returns
Rank
Betas are ranked from low to high
Beta for Local Currency
Beta for U.S. $
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