Bubbles Forever

In 2006, the largest global real-estate bubble in history imploded, and the collapse of a major worldwide stock-market bubble a year later triggered the global financial crisis. Although one might think that we have been living in a "post-bubble" world since then, talk of new bubbles keeps reappearing.

NEW HAVEN – You might think that we have been living in a post-bubble world since the collapse in 2006 of the biggest-ever worldwide real-estate bubble and the end of a major worldwide stock-market bubble the following year. But talk of bubbles keeps reappearing – new or continuing housing bubbles in many countries, a new global stock-market bubble, a long-term bond-market bubble in the United States and other countries, an oil-price bubble, a gold bubble, and so on.

Nevertheless, I was not expecting a bubble story when I visited Colombia last month. But, once again, people there told me about an ongoing real-estate bubble, and my driver showed me around the seaside resort town of Cartagena, pointing out, with a tone of amazement, several homes that had recently sold for millions of dollars.

The Banco de la República, Colombia’s central bank, maintains a home price index for three main cities – Bogotá, Medellín, and Cali. The index has risen 69% in real (inflation-adjusted) terms since 2004, with most of the increase coming after 2007. That rate of price growth recalls the US experience, with the S&P/Case-Shiller Ten-City Home Price Index for the US rising 131% in real terms from its bottom in 1997 to its peak in 2006.

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