Monetary policy decisions tend to regress toward the mean and to be inertial-and hence biased in just the same way that adaptive expectations are biased relative to rational expectations. But errors like that, while systematic, will generally be small and will tend to shrink over time. And, in return, the system builds in natural safeguards against truly horrendous mistakes. (Alan Blinder)

Monetary policy decisions tend to regress toward the mean and to be inertial-and hence biased in just the same way that adaptive expectations are biased relative to rational expectations. But errors like that, while systematic, will generally be small and will tend to shrink over time. And, in return, the system builds in natural safeguards against truly horrendous mistakes.

Alan Blinder

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