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For release on delivery
11:00 a.m. EDT
June 15, 2004

Statement of
Alan Greenspan
Chairman
Board of Governors of the Federal Reserve System
before the
Committee on Banking, Housing, and Urban Affairs
United States Senate

June 15,2004

I want to express my gratitude to President Bush for his confidence in me and to you, Mr.
Chairman and members of the committee, for expeditiously holding this hearing on my
renomination for a fifth term as Chairman of the Board of Governors of the Federal Reserve
System. The Federal Reserve has had a close and productive relationship with this committee
over the years. If you and your Senate colleagues afford me the opportunity, I look forward to
working with you in advancing our shared goal of strengthening the firm foundation upon which
the American people have built a prosperous economy and a sound and efficient financial
system.
The performance of the U.S. economy has been most impressive in recent years in the
face of staggering shocks that in years past would almost surely have been destabilizing.
Economic policies directed at increasing market flexibility have played a major role in that solid
performance. Those policies, aided by major technological advances, fostered a globalization,
which unleashed powerful new forces of competition, and an acceleration of productivity, which
at least for a time has held down cost pressures.
We at the Federal Reserve gradually came to recognize these structural changes and
accordingly altered our understanding of the key parameters of the economic system and our
policy stance. But while we lived through them, there was much uncertainty about the evolving
structure of the economy and about the influence of monetary policy.
The Federal Reserve's experiences over the past two decades make it clear that such
uncertainty is not just a pervasive feature of the monetary policy landscape; it is the defining
characteristic of that landscape. As a consequence, the conduct of monetary policy in the United
States has come to involve, at its core, crucial elements of risk management. This conceptual

framework emphasizes understanding the many sources of risk and uncertainty that
policymakers face, quantifying those risks when possible, and assessing the costs associated with
each of the risks.
This framework entails devising, in light of those risks, a strategy for policy directed at
maximizing the probabilities of achieving over time our goals of price stability and the maximum
sustainable economic growth that we associate with it. In designing strategies to meet our policy
objectives, we have drawn on the work of analysts, both inside and outside the Fed, who over the
past half century have devoted much effort to improving our understanding of the economy and
its monetary transmission mechanism. A critical result has been the identification of key
relationships that, taken together, provide a useful approximation of our economy's dynamics.
Such an approximation underlies the statistical models that we at the Federal Reserve employ to
assess the likely influence of our policy decisions.
However, despite extensive efforts to capture and quantify what we perceive as the key
macroeconomic relationships, our knowledge about many of the important linkages is far from
complete and, in all likelihood, will always remain so. Every economic model, no matter how
detailed or how well designed, conceptually and empirically, is a vastly simplified representation
of the world that we experience with all its intricacies on a day-to-day basis. Policymakers have
needed to reach beyond models to broader—though less mathematically precise—hypotheses
about how the world works.
A central bank needs to consider not only the most likely future path for the economy but
also the distribution of possible outcomes around that path. The decisionmakers then need to
reach a judgment about the probabilities, costs, and benefits of the various possible outcomes

under alternative choices for policy.
As the transcripts of Federal Open Market Committee meetings attest, faced with these
abundant challenges, we find the making of monetary policy to be an especially humbling
activity. In hindsight, the paths of inflation, real output, employment, productivity, stock prices,
and exchange rates may seem to have been preordained, but no such insight existed as we
experienced these developments at the time.
Yet, during the past quarter-century, policymakers managed to defuse dangerous
inflationary forces and to deal with the consequences of a stock market crash, a large asset price
bubble, and a series of liquidity crises. These developments did not divert us from the pursuit
and eventual achievement of price stability and the greater economic stability that goes with it.
Going forward, we must remain prepared to deal with a wide range of events.
Particularly notable in this regard is the fortunately low, but still deeply disturbing, possibility of
another significant terrorist attack in the United States. Our economy was able to absorb the
shock of the attacks of September 11 and to recover, though remnants of the effects remain. We
at the Federal Reserve learned a good deal from that tragic episode with respect to the impact of
policy and, of no less importance, the functioning under stress of the sophisticated payments
system that supports our economy. Our efforts to further bolster the operational effectiveness of
the Federal Reserve and the strength of the financial infrastructure continue today.
Each generation of policymakers has had to grapple with a changing portfolio of
problems. So while we importantly draw on the experiences of our predecessors, we can be sure
that we will confront different problems in the future.
The Federal Reserve has been fortunate to have worked in a particularly favorable

structural and political environment over the past quarter-century. But we trust that monetary
policy has contributed meaningfully to the impressive performance of our economy in those
years. I have been extraordinarily privileged to serve my country at the Federal Reserve during
most of these years and would be honored if the Senate saw fit to enable me to continue this
service.