Consider a circus that comes to town for a few weeks. A restaurant owner may expand his seating capacity in the false expectation that the circus and the related demand for his food that it brings in its wake will last forever. But when the circus leaves town, he'll find he has "idle resources" on his hands. We should not want to put these idle resources to work. Doing so would only draw labor and other resources away from other sectors of the economy, where they are employed in the satisfaction of real consumer demand. The expansion of the restaurant should not have occurred in the first place. We should want this bubble activity to shrink back down to size, in order that other, non-bubble activities in the economy can be correspondingly strengthened.
The analogy of a circus is apt. The irony is that the real circus is in Washington, D.C. and, so far, it refuses to leave town.
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