Tuesday, January 27, 2009

Ockham's Razor

There is a time-honored principle called Ockham's Razor, which states that the explanation for any phenomenon should focus only on the essential and relevant elements, avoiding as many unnecessary “second-order” factors as possible. Albert Einstein put it this way: “A theory should be a simple as possible, but no simpler.” From the standpoint of economic stimulus, Ockham's Razor suggests that we will fail as a nation to address the current economic crisis if we fail to address the source of that crisis. Again, this means focusing first on bank capital and mortgage foreclosures.

In short, the essential problem is not “insufficient aggregate demand” but rather risk-aversion and anticipatory saving triggered by fear of financial instability. Ockham's razor cuts straight to bank capital and foreclosure risk. We can address a much wider range of interests in the cause of economic stimulus, but if we fail to address the central cause of the present economic crisis, the attempt to increase “aggregate demand” will predictably fail.

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