Feb 26th 2004 From The Economist print edition
The trouble with paper money
IS THE problem with the dollar only that it is falling? It has certainly been doing that. This month, it fell to $1.29 against the euro. This is its lowest-ever rate against the euro, and represents a decline of 19% since the beginning of 2003. In trade-weighted terms, the dollar has fallen less over the same period (15%), but mainly because Asian central banks have been intervening heavily to stem their currencies' rise against it. Of late, it has been wobbling around unconvincingly: America needs a weaker dollar to correct its current-account deficit. But given the dollar's role as a currency of last resort, some wonder if its decline heralds not just an economic adjustment by the United States, but a crisis of sorts in the value of paper money itself.
Money in its present form is a relatively new invention. For most of human history money meant either gold or silver, either directly, or indirectly by means of the “gold standard” which meant, at least in theory, that all paper money was backed by gold. Enthusiasm for the gold standard evaporated in the 1930s, when it made dreadful conditions worse. But it was adopted in a watered-down version after the second world war, when only the dollar was backed by gold. This arrangement made some sense, since America held three-quarters of the world's gold stock. But it came to an end in 1971, when inflationary pressures in America caused the country's manufacturers to become uncompetitive and forced the country off the gold standard. Since then the world has relied on “fiat money”, so-called because it is created by government fiat and is backed only by the promises of central bankers to protect the value of their currencies. It is the value of those promises that some are now questioning.
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That's not what happened. Under Bretton Woods, the US would exchange dollars for gold at the official and fixed rate of $35. Only countries in the system could make the exchange. In 1971 France threatened to convert all its dollars and we couldn't do it, because of inflation. Nixon closed the gold window, and that was the end of that.