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Former Enron adviser Paul Krugman takes note in his New York Times column of what he calls "the incredible gap that has opened up between the parties":

Today, Democrats and Republicans live in different universes, both intellectually and morally.

"What Democrats believe," he says "is what textbook economics says":

But that's not how Republicans see it. Here's what Senator Jon Kyl of Arizona, the second-ranking Republican in the Senate, had to say when defending Mr. Bunning's position (although not joining his blockade): unemployment relief "doesn't create new jobs. In fact, if anything, continuing to pay people unemployment compensation is a disincentive for them to seek new work."

Krugman scoffs: "To me, that's a bizarre point of view--but then, I don't live in Mr. Kyl's universe."

What does textbook economics have to say about this question? Here is a passage from a textbook called "Macroeconomics":