103. Knowing the value of compounding, you consider the opportunity to invest for 10 years in
a Japanese investment that will return 12% annually. The U.S. alternative for a 10-year
investment appears to offer 7% annually. The spot exchange rate is ¥96/$. What other concern
should you have?
The logical concern is what the spot exchange rate will be in 10 years. Let’s illustrate with the
example of an initial investment of $1,000: The $1,000 is exchanged for ¥96,000, which will grow
to ¥298,161.43 after 10 years at 12% annually. On the other hand, $1,000 invested for 10 years in
the United States at 7% will grow to only $1,967.15. If the same spot exchange rate is in effect 10
years from now, the ¥298,161.43 can be exchanged for $3,105.85—which is $1,138.70 more than
the U.S. investment will generate. Since this is a virtual money machine, it must be the case that
the yen is expected to depreciate by an approximate rate of 4.67% annually over the next 10
years. Any actual depreciation in the yen of less than 4.67% annually makes the yen investment
better. The question is, are you willing to bet against the international financial community that
the yen will
not
depreciate by 4.67% annually?