經(jīng)濟類文章精選：Burnished

4 Burnished

　　Up goes gold, down goes the dollar

　　MOST economists hate gold. Not, you understand, that they would turn up their noses at a bar or two. But they find the reverence in which many hold the metal almost irrational. That it was used as money for millennia is irrelevant: it isn't any more. Modern money takes the form of paper or, more often, electronic data. To economists, gold is now just another commodity.

　　So why is its price soaring? Over the past week, this has topped $450 a troy ounce, up by 9% since the beginning of the year and 77% since April 2001. Ah, comes the reply, gold transactions are denominated in dollars, and the rise in the price simply reflects the dollar's fall in terms of other currencies, especially the euro, against which it hit a new low this week. Expressed in euros, the gold price has moved much less. However, there is no iron link, as it were, between the value of the dollar and the value of gold. A rising price of gold, like that of anything else, can reflect an increase in demand as well as a depreciation of its unit of account.

　　This is where gold bulls come in. The fall in the dollar is important, but mainly because as a store of value the dollar stinks. With a few longish rallies, the greenback has been on a downward trend since it came off the gold standard in 1971. Now it is suffering one of its sharper declines. At the margin, extra demand has come from those who think dollars--indeed any money backed by nothing more than promises to keep inflation low--a decidedly risky investment, mainly because America, with the world's reserve currency, has been able to create and borrow so many of them. The least painful way of repaying those dollars is to make them worth less.

　　The striking exception to this extra demand comes from central banks, which would like to sell some of the gold they already have. As a legacy of the days when their currencies were backed by