The Economist's Free Exchange reminds me to read my Bagehot. A fuller quote:

But that object is not attained if the amount of that reserve when so published is not enough to tranquillise people. A panic is sure to be caused if that reserve is, from whatever cause, exceedingly low. At every moment there is a certain minimum which I will call the 'apprehension minimum,' below which the reserve cannot fall without great risk of diffused fear; and by this I do not mean absolute panic, but only a vague fright and timorousness which spreads itself instantly, and as if by magic, over the public mind. Such seasons of incipient alarm are exceedingly dangerous, because they beget the calamities they dread. What is most feared at such moments of susceptibility is the destruction of credit; and if any grave failure or bad event happens at such moments, the public fancy seizes on it, there is a general run, and credit is suspended.

I assume someone who's studied the Great Depression will remember this as well.

Labels: economics