Bernanke: A Stunning Revelation
Tuesday, May 26th, 2009Jeff Harding writes: Fed Chairman Ben Bernanke gave a startling commencement address for
the Boston College School of Law Class of 2009 this week. He admitted
an apparent turnabout of his fundamental views of economics. No news
media picked up the significance of what he was saying.
After the introductory and self-humbling remarks usually made by great men at these events, he made the following revelatory comment:
Instead, I’d like to offer a few thoughts today about the inherent unpredictability of our individual lives and how one might go about dealing with that reality. As an economist and policymaker, I have plenty of experience in trying to foretell the future,
because policy decisions inevitably involve projections of how
alternative policy choices will influence the future course of the
economy.The Federal Reserve, therefore, devotes substantial resources to
economic forecasting. Likewise, individual investors and businesses
have strong financial incentives to try to anticipate how the economy
will evolve. With so much at stake, you will not be surprised to know
that, over the years, many very smart people have applied
the most sophisticated statistical and modeling tools available to try
to better divine the economic future. But the results, unfortunately, have more often than not been underwhelming.Like weather forecasters, economic forecasters must deal with a system that is extraordinarily complex, that is subject to random shocks, and about which our data and understanding will always be imperfect. In some ways, predicting the economy is even more difficult than forecasting the weather, because an economy is not made up
of molecules whose behavior is subject to the laws of physics, but
rather of human beings who are themselves thinking about the future and
whose behavior may be influenced by the forecasts that they or others
make. To be sure, historical relationships and
regularities can help economists, as well as weather forecasters, gain
some insight into the future, but these must be used with considerable caution and healthy skepticism.[Emphasis added]
Let me translate this for you on two levels. On one level he is
talking about his personal belief in the failure of economic
prediction, and at another level, is the realization by him of the
failure of the science of econometrics. No small thing. (05/26/09)
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Instead, I’d like to offer a few thoughts today about the 