A monster stalks the earth--a sluggish, craven, dumb beast that takes fright at the slightest noise and starts at the sight of its own shadow. This monster is the market. The shadow it fears is cast by a light that comes from the future: the Keynesian crisis of expectations. It is this same light that causes the world's leaders to tremble before the beast. They tremble, Jean-Pierre Dupuy says, because they have lost faith in the future. What Dupuy...