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INTERVIEWER: Tell me, what is the worst-case scenario? Sir, we have so many economists coming on our air and saying, “Oh, this is a bubble, and it’s going to burst, and this is going to be a real issue for the economy.” Some say it could even cause a recession at some point. What is the worst-case scenario, if in fact we were to see prices come down substantially across the country?

BERNANKE: Well, I guess I don’t buy your premise. It’s a pretty unlikely possibility. We’ve never had a decline in house prices on a nationwide basis. So what I think is more likely is that house prices will slow, maybe stabilize: might slow consumption spending a bit. I don’t think it’s going to drive the economy too far from its full employment path, though.

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— CNBC (Interview after being named Fed Chairman in 2006 on the verge of the great housing bubble)