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.
International agencies recently issued warnings about speculative excesses in asset markets, suggesting that we should be worried about a possible crisis. In a speech in June, International Monetary Fund Deputy Managing Director Min Zhu argued that housing markets in several countries, including in Europe, Asia, and the Americas, “show signs of overheating.” The same month, the Bank for International Settlements said in its Annual Report that such “signs are worrying.”
Newspapers are sounding alarms as well. On July 8, the New York Times led its front page with a somewhat hyperbolic headline: “From Stocks to Farmland, All’s Booming, or Bubbling: Prices for Nearly All Assets around World Are High, Bringing Economic Risks.” The words “nearly all” are too strong, though the headline evinces the newfound concern.