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Economic SYNOPSES
short essays and reports on the economic issues of the day
2004 ■ Number 3

The FOMC’s “Considerable Period”
Richard G. Anderson and Daniel L. Thornton

10-Year Constant-Maturity Treasury Yields Since
August 1, 2003
5.00
4.50
4.00

constant maturity yield,
nominal securities

3.50
August 12, 2003

3.00
2.50
2.00

constant maturity yield,
inflation-indexed securities

1.50
1.00
0.50

10-year

10-year TIIS

0.00
8/
15
/0
3
8/
29
/0
3
9/
12
/0
3
9/
26
/0
3
10
/1
0/
03
10
/2
4/
03
11
/7
/0
3
11
/2
1/
03
12
/5
/0
3
12
/1
9/
03
1/
2/
04

A

decreases in actual inflation, longer-term nominal rates have
decreased by substantially less, since January 2001, than the
FOMC’s 550-basis-point reduction in the federal funds rate.
Economists often look at the market for inflation-indexed
government bonds when they seek to separate changes in
longer-term nominal rates into their real and expected inflation components. The figure tracks the 10-year constantmaturity yields on Treasury nominal and inflation-indexed
securities since the August publication of the “considerable
period” language. The generally downward drift of the TIIS
yield suggests that the FOMC’s unconventional language might,
in fact, have reduced real long-term interest rates. At the same
time, the essentially unchanged nominal 10-year yield suggests
that the decrease in the real-rate component has been matched
by either an increase in inflation compensation or the inflationuncertainty premium. It remains an open question whether
this unconventional policy will cause the output gap to close
more quickly. ■

8/
1/
03

t its August 12, 2003, meeting, the Federal Open
Market Committee (FOMC) took the unusual step of
foreshadowing its future policy course by announcing
that its current highly accommodative monetary policy could
“be maintained for a considerable period.” Although the FOMC
did not specify the length of the “considerable period,” the
change in federal funds rate futures contracts suggested that
market observers interpreted the language to be a commitment
by the FOMC that it would not increase its target level of the
federal funds rate for at least six months, perhaps longer. The
FOMC repeated this language in the press releases following
its subsequent three meetings.
The FOMC’s August minutes note that they made this
unconventional policy commitment, with the federal funds
target rate already at the “quite accommodative” level of 1
percent, “to encourage progress toward closing the economy’s
currently wide output gap and, with inflation already near the
low end of what some members regarded as an acceptable
range, to resist significant further disinflation.” Because spending decisions are more closely linked to the behavior of longerterm rates, to achieve this goal the FOMC appears to have
made this unconventional commitment so as to reduce longterm interest rates in the absence of further reductions in the
federal funds rate target.
Even if longer-term rates are determined in large part by
market expectations for future short-term rates, it is difficult
to know how changes in monetary policy will affect longerterm nominal interest rates. The effect of monetary policy on
longer-term rates is complicated by the fact that observed longterm nominal rates comprise three unobserved components—
the real rate, the inflation compensation, and a premium for
inflation uncertainty. Consequently, longer-term rates need
not fall when monetary policy eases, whether the easier policy
comes in the form of a reduction in the overnight rate target
or by an unconventional commitment to extend the duration
of a low target rate for a time period longer than suggested
by historical experience.
While an apparently easier policy might reduce one component, such as the real rate, it might simultaneously increase
the level of or uncertainty associated with expectations of
future inflation. For example, despite widely publicized

SOURCE: Board of Governors of the Federal Reserve System, H.15 release,
daily figures.

Views expressed do not necessarily reflect official positions of the Federal Reserve System.

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