4. An option is a foreign-exchange instrument that guarantees the purchaser
the right (but does not impose an obligation) to buy or sell a certain amount
of foreign currency at a set exchange rate within a specified amount of
time.
5. A futures contract is a foreign-exchange instrument that specifies an
exchange rate, an amount, and a maturity date in advance of the exchange
of the currencies, i.e., it is an agreement to buy or sell a particular currency
at a particular price on a particular future date.
C. Size, Composition, and Location of the Foreign-Exchange Market.
The BIS estimated in its 2013 survey of global foreign-exchange activity that daily
foreign-exchange turnover was $5.3 trillion, an increase of 32.5 percent over the
2010 survey. However, the rise in activity was much smaller than the 71 percent
increase from 2004 to 2007 due to the global economic crisis that began in 2008.
Current daily turnover (mid-2016) is estimated to be closer to $7 trillion.
a. Using the U.S. Dollar on the Foreign-Exchange Market. The
The U.S. dollar is the most important currency on the foreign-exchange
market; in the latest BIS Survey, it was one side (buy or sell) of 87 percent of
all foreign currency transactions worldwide, as Table 9.1. Although the dollar,
euro, yen, and pound sterling are the most widely traded currencies, the
Chinese yuan is steadily growing in importance. There are five major reasons
why the dollar is so widely traded:
1. It’s an investment currency in many capital markets.
2. It’s a reserve currency held by many central banks.
3. It’s a transaction currency in many international commodity markets.
4. It’s an invoice currency in many contracts.
5. It’s an intervention currency employed by monetary authorities in
market operations to influence their own exchange rates.
b. Frequently Traded Currency Pairs. The dollar, the most traded
currency in the world, is part of four of the top seven currency pairs: the
dollar/euro and the dollar/yen are the top two. Because of the importance of the
U.S. dollar in foreign exchange trade, the exchange rate between two
currencies other than the dollar—for example, the exchange rate between the
euro and the Brazilian real—is known as a cross rate.
c. The Euro. The euro is also in four of the top ten currency pairs. The top
three currency pairs involving the euro are the dollar, the yen, and the British
pound. However, the euro is also important for other currencies in the EU that
are not part of the monetary union as well as non-EU countries in Europe, such
as Turkey.
D. Foreign-Exchange Trades and Time Zones.
If the U.S. dollar is the most widely traded currency in the world, why is London so
important as a trading center? There are two major reasons. First, London, which is
close to the major capital markets in Europe, is a strong international financial
center where many domestic and foreign financial institutions operate. Thus, its
geographic location relative to significant global economic activity is key [see
Figure 9.1]. Second, London is positioned in a unique way because of its time zone
9-3
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