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Booming Until It Hurts?

NEW HAVEN – In recent months, concern has intensified among the world’s financial experts and news media that overheated asset markets – real estate, equities, and long-term bonds – could lead to a major correction and another economic crisis. The general public seems unbothered: Google Trends shows some pickup in the search term “stock market bubble,” but it is not at its peak 2007 levels, and “housing bubble” searches are relatively infrequent.

But the experts’ concern is notable and healthy, because the belief that markets are always efficient can survive only when some people do not completely believe it and think that they can profit by timing the markets. At the same time, this heightened concern carries dangers, too, because we do not know whether it will lead to a public overreaction on the downside.