Naked Economics: Undressing the Dismal Science pdfdrive com


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Naked Economics Undressing the Dismal Science ( PDFDrive )

Floating exchange rates. The gold standard fixes currencies against one
another; floating rates allow them to fluctuate as economic conditions dictate,
even minute by minute. Most developed economies have floating exchange
rates; currencies are traded on foreign exchange markets, just like a stock
exchange or eBay. At any given time, the exchange rate between the dollar and
yen reflects the price at which parties are willing to voluntarily trade one for the
other—just like the market price of anything else. When Toyota makes loads of
dollars selling cars in the United States, they trade them for yen with some party
that is looking to do the opposite. (Or Toyota can use the dollars to pay
American workers, make investments inside the United States, or buy American
inputs.)
With floating exchange rates, governments have no obligation to maintain a
certain value of their currency, as they do under the gold standard. The primary
drawback of this system is that currency fluctuations create an added layer of
uncertainty for firms doing international business. Ford may make huge profits
in Europe only to lose money in the foreign exchange markets when it tries to
bring the euros back home. So far, exchange rate volatility has proven to be a
drawback of floating rates, though not a fatal flaw. International companies can
use the financial markets to hedge their currency risk. For example, an American
firm doing business in Europe can enter into a futures contract that locks in some
euro-dollar exchange rate at a specified future date—just as Southwest Airlines
might lock in future fuel prices or Starbucks might use the futures market to
protect against an unexpected surge in the price of coffee beans.
Fixed exchange rates (or currency bands). Fixed or “pegged” exchange rates
are a lot like the gold standard, except that there is no gold. (This may seem like
a problem—and it often is.) Countries pledge to maintain their exchange rates at
some predetermined rate with a group of other countries—such as the nations of
Europe. The relevant currencies trade freely on markets, but each participating
government agrees to implement policies to keep its currency trading within the
predetermined range. The European Exchange Rate Mechanism described at the
beginning of this chapter was such a system.
The primary problem with a “peg” is that countries can’t credibly commit to


The primary problem with a “peg” is that countries can’t credibly commit to
defending their currencies. When a currency begins to look weak, as the pound
did, then speculators pounce, hoping to make millions (or billions) if the
currency is devalued. Of course, when speculators (and others concerned about
devaluation) aggressively sell the local currency—as Soros did—then
devaluation becomes all the more likely.

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