Paul Krugman has what looks to be a very good analysis of why we have an economic crisis in his column today. Here's an excerpt:
Well, you could say that American bankers, empowered by a quarter-century of deregulatory zeal, led the world in finding sophisticated ways to enrich themselves by hiding risk and fooling investors.
And wide-open, loosely regulated financial systems characterized many of the other recipients of large capital inflows. This may explain the almost eerie correlation between conservative praise two or three years ago and economic disaster today. “Reforms have made Iceland a Nordic tiger,” declared a paper from the Cato Institute. “How Ireland Became the Celtic Tiger” was the title of one Heritage Foundation article; “The Estonian Economic Miracle” was the title of another. All three nations are in deep crisis now.
For a while, the inrush of capital created the illusion of wealth in these countries, just as it did for American homeowners: asset prices were rising, currencies were strong, and everything looked fine. But bubbles always burst sooner or later, and yesterday’s miracle economies have become today’s basket cases, nations whose assets have evaporated but whose debts remain all too real. And these debts are an especially heavy burden because most of the loans were denominated in other countries’ currencies.
Nor is the damage confined to the original borrowers. In America, the housing bubble mainly took place along the coasts, but when the bubble burst, demand for manufactured goods, especially cars, collapsed — and that has taken a terrible toll on the industrial heartland. Similarly, Europe’s bubbles were mainly around the continent’s periphery, yet industrial production in Germany — which never had a financial bubble but is Europe’s manufacturing core — is falling rapidly, thanks to a plunge in exports.