Why is the Dollar still strong?

Gabor Steingart: America and the Dollar Illusion:

" But why are the same traders who used to purchase products now so mad about dollar bills? Why do they rely on the good called security - a commodity whose quantity cannot be increased at all? Doesn't every business student learn that the currency of a country is only as stable - and hence as valuable - as what the national economy of that country has to offer and produces? Does no one see that the tension between the dream and the reality is increasing and that this tension will snap, leading to suffering for millions?

Of course they see it! Investors can see what is happening. They wonder about it and shake their heads. It even scares them a little, sending chills down their spine. But they keep buying dollars as though possessed. The greater their doubts, the more greedily they order dollars. Indeed, that's exactly what is so crazy about these investors and their behavior: The client isn't just a client. He creates the security he's purchasing by the very act of purchasing it. If he were to stop buying dollars tomorrow, suspicion about the currency would spread and insecurity would grow. Then the dream would end. The dollar would start to falter and all the wealth held in dollars would lose its value. Of course, that's not something investors want to see happen.

The only way to fight a weak dollar is to strengthen it. Many people no longer care whether the US currency still justifies the faith people seem to have in it. The new game, which amounts to playing with fire, works exactly the other way around: The dollar deserves the faith it gets because otherwise it loses that faith. Dollars are bought so they don't have to be sold. The dollar is strong because that's the only thing that can prevent it from growing weak. Reality is ignored because only by ignoring it can the dream come true. Or, to put it still more clearly: Behaving irrationally has become rational behavior."