The bubble regulator’s dilemma

More from Galbraith on the crash of ’29:

Some of those in positions of authority wanted the boom to continue. They were making money out of it, and they may have had an intimation of the personal disaster which awaited them when the boom came to an end. But there were also some who saw, however dimly, that a wild speculation was in progress, and that something should be done. For these people, however, every proposal to act raised the same intractable problem. The consequences of successful action seemed almost as terrible as the consequences of inaction, and they could be more horrible for those who took the action.

A bubble can easily be punctured. But to incise it with a needle so that it subsides gradually is a task of no small delicacy. Among those who sensed what was happening in early 1929, there was some hope but no confidence that the boom could be made to subside. The real choice was between an immediate and deliberately engineered collapse and a more serious disaster later on. Someone would certainly be blamed for the ultimate collapse when it came. There was no question whatever who would be blamed should the boom be deliberately deflated.

This presents an evolutionary problem, preventing emergence of wise regulators, even absent “power corrupts” dynamics. The solution may be to incise the bubble in a distributed fashion, by inoculating the individuals who create the bubble with more wisdom and memory of past boom-bust cycles.

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