http://krugman.blogs.nytimes.com/2007/09/20/is-this-the-wile-e-coyote-moment/Lots of buzz suddenly about the possibility of a sharp fall in the dollar. The Canadian dollar is back at parity with the greenback; there are rumors that the Saudis are planning to diversify into euros, and maybe even that the Chinese might break the dollar peg. A nice summary at Barry Ritholtz’s blog The Big Picture.
I could say that I saw this coming; the problem is that I’ve been seeing it coming for several years, and it keeps not arriving (and I don’t know if this is really it, even now.) The argument I and others have made is that the U.S. trade deficit is, fundamentally, not sustainable in the long run, which means that sooner or later the dollar has to decline a lot. But international investors have been buying U.S. bonds at real interest rates barely higher than those offered in euros or yen — in effect, they’ve been betting that the dollar won’t ever decline.
So, according to the story, one of these days there will be a Wile E. Coyote moment for the dollar: the moment when the cartoon character, who has run off a cliff, looks down and realizes that he’s standing on thin air – and plunges. In this case, investors suddenly realize that Stein’s Law applies — “If something cannot go on forever, it will stop” – and they realize they need to get out of dollars, causing the currency to plunge. Maybe the dollar’s Wile E. Coyote moment has arrived – although, again, I’ve been wrong about this so far.
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