With a short primer on the current financial crisis,
Paul Krugman, in the NYTimes.
Contrary to popular belief, the stock market crash of 1929 wasn’t the defining moment of the Great Depression. What turned an ordinary recession into a civilization-threatening slump was the wave of bank runs that swept across America in 1930 and 1931.
This banking crisis of the 1930s showed that unregulated, unsupervised financial markets can all too easily suffer catastrophic failure.
As the decades passed, however, that lesson was forgotten — and now we’re relearning it, the hard way.
To grasp the problem, you need to understand what banks do.
Check out the piece; it is a quick read.