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Is the Fed “Behind the Curve”?
Two Interpretations
James Bullard
President and CEO
How Monetary Policy Got Behind the Curve and How to Get Back
Hoover Institution at Stanford University
May 6, 2022
Stanford, Calif.
Any opinions expressed here are my own and do not necessarily reflect those of the Federal Open Market Committee.

1

Introduction

2

Key themes

• U.S. inflation is exceptionally high, comparable to that in 1974 and 1983.
• Standard Taylor-type monetary policy rules, even if based on a minimum

•
•

interpretation of the persistent component of inflation, still recommend
substantial increases in the policy rate. This provides one definition of
“behind the curve,” and the Fed is far behind.
However, all is not lost. Modern central banks are more credible than
their 1970s counterparts and use forward guidance.
Credible forward guidance means market interest rates have increased
substantially in advance of tangible Fed action. This provides another
definition of “behind the curve,” and the Fed is not as far behind based
on this definition.

3

Inflation Is Comparable to 1974 and 1983

4

Core inflation is comparable to 1974 and 1983
• Core personal consumption expenditures (PCE) inflation from one year
•
•

earlier was 5.2% in March, which is the most recent reading.
There have been two other times since 1960 when this measure of
inflation has been close to this level.
One was 1974, and the other was 1983.

5

Core PCE inflation since 1960

Source: Bureau of Economic Analysis. The gray shaded areas indicate U.S. recessions. Last observation: March 2022.
6

Monetary policy in 1974
• The 1974 FOMC, which was looking at a core PCE inflation rate similar
•
•
•
•

to today’s, liked to talk about nonmonetary factors affecting inflation.
The FOMC kept the policy rate relatively low in the face of rising
inflation.
The associated ex-post real interest rate was relatively low.
The subsequent experience was that core PCE inflation was above 5.2%
for nearly 10 years.
The real economy was also volatile with multiple recessions.

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Monetary policy in 1983
• The 1983 FOMC, which was also looking at a core PCE inflation rate
•
•
•
•

similar to today’s, had a different approach to monetary policy and
spoke more about monetary factors affecting inflation.
The FOMC kept the policy rate relatively high in the face of declining
inflation. The associated ex-post real interest rate was relatively high.
The subsequent experience was that core PCE inflation was below 5.2%
for the next 10 years.
The real economy also stabilized with no recession until 1990-91.
The contrast between the 1974 and 1983 experiences convinced many
that it was important to avoid getting “behind the curve” on inflation.
8

First Interpretation of “Behind the Curve”

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Interpreting inflation

• The Fed has a statutory mandate to provide stable prices for the U.S.
economy.

• Associated with this mandate is an inflation target of 2%, stated in terms
of the headline PCE inflation rate, which was 6.6% in March measured
from one year earlier.

• Because of particularly large movements in food and energy prices

recently, some may argue that the Fed should consider the core PCE
inflation rate instead, which, as we have seen, is currently 5.2%.

• Still others might argue that the truly persistent factors driving inflation

are better captured by the Dallas Fed trimmed mean inflation rate, which
was 3.7% in March measured from one year earlier.†

For more on inflation persistence, see M. Almuzara and A. Sbordone, “Inflation Persistence: How Much Is There and
Where Is It Coming From?” Federal Reserve Bank of New York Liberty Street Economics blog, April 20, 2022.
†

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Inflation well above target

Sources: Bureau of Economic Analysis and Federal Reserve Bank of Dallas. The gray shaded area indicates U.S.
recession. Last observation: March 2022.
11

A generous interpretation
• In my definitions of “behind the curve,” I will use the most generous
•
•

(lowest) interpretation of the persistent component of current inflation,
which is the 3.7% Dallas Fed trimmed mean value.
This will help us define “behind the curve”: The idea is to measure the
degree to which the current level of the policy rate is less than some
minimally reasonable level.
We should keep in mind that this minimal definition excludes some
inflation that is actually occurring, and that the Fed’s inflation target is
ultimately stated in terms of headline inflation.†

See J. Bullard, “Measuring Inflation: The Core Is Rotten,” Federal Reserve Bank of St. Louis Review, July/August 2011,
93(4), pp. 223-33.
†

12

Taylor-type monetary policy rules
• John Taylor (Stanford University) is famous for developing a “Taylor
•
•

rule” which has been widely accepted in monetary policy discussions
over the last 30 years.†
A Taylor-type policy rule with generous assumptions will give us a
minimal recommended value for the policy rate given current
macroeconomic conditions.
We will then compare this minimal recommended rate to the actual
policy rate to get a measure of the degree to which U.S. monetary
policy is “behind the curve.”

See J.B. Taylor, “Discretion versus Policy Rules in Practice,” Carnegie-Rochester Conference Series on Public Policy,
December 1993, 39, pp. 195-214; and J.B. Taylor, “A Historical Analysis of Monetary Policy Rules,” in J.B. Taylor, ed.,
Monetary Policy Rules. Chicago: University of Chicago Press, 1999, pp. 319-41.
.
†

13

Ingredients in a Taylor-type rule calculation

• In addition to an inflation measure, we need three ingredients in a noninertial Taylor-type rule calculation:*
1.

A value for the real interest rate (𝑅𝑅 ∗ ); I will use an approximate prepandemic value of –50 basis points.†

2.

A parameter value describing the reaction of the policymaker to deviations
of inflation from target; I will use a relatively low value of 1.25.

3.

A parameter value describing the reaction of the policymaker to deviations
of output from potential; I will use zero when the CBO output gap is
positive, and 1 otherwise.‡

* Adding inertia would not change the ultimate value of the policy rate but would suggest making a series of policy rate changes.
† For more on this topic, see J. Bullard, “R-Star Wars: The Phantom Menace,” Feb. 26, 2018, remarks delivered at the 34th
Annual National Association for Business Economics (NABE) Economic Policy Conference in Washington, D.C.
‡ See the FOMC’s “Statement on Longer-Run Goals and Monetary Policy Strategy,” adopted effective Jan. 24, 2012; as
reaffirmed effective Jan. 25, 2022.
14

A generous policy rule benchmark

• All the choices I have outlined can be interpreted as generous—that is, as
•
•

tilting toward a lower recommended policy rate.
The notion of “behind the curve,” as I am defining it, is the position of the
policy rate relative to this minimalist benchmark.
The minimalist rule can be stated as:
𝑅𝑅𝑡𝑡 = 𝑅𝑅∗ + 𝜋𝜋 ∗ + 1.25 𝜋𝜋𝑡𝑡 − 𝜋𝜋 ∗ + min 𝑦𝑦𝑦𝑦𝑦𝑦𝑦𝑦𝑡𝑡 , 0 ,

where 𝑅𝑅𝑡𝑡 is the recommended policy rate; 𝑅𝑅 ∗ = –0.5; 𝜋𝜋 ∗ = 2.0; 𝜋𝜋𝑡𝑡 is Dallas Fed
trimmed mean inflation measured from one year earlier; and 𝑦𝑦𝑦𝑦𝑦𝑦𝑦𝑦𝑡𝑡 is the output
gap, constructed by applying Okun’s law to deviations of the unemployment rate
from the median Summary of Economic Projections longer-run value.

• This rule is consistent with the pre-pandemic policy rate.

15

A “behind the curve” calculation

• With these values in the minimalist policy rule, one concludes that the
•
•
•
•

recommended policy rate is the following:
–0.5 + 2.0 + 1.25 * (3.7 – 2.0) = 3.63%
The current value of the policy rate is 87.5 basis points.
One concludes that the current policy rate is below the minimalist
recommendation by 275 basis points.
This provides one definition of the idea that the Fed is “behind the
curve.”
A higher value for 𝑅𝑅∗ or a broader definition of inflation would suggest
considerably higher recommended policy rate values, and the Fed would
be further behind the curve.
16

Second Interpretation of “Behind the Curve”

17

Credibility and forward guidance
• Modern central banks have considerably more credibility than they did
•
•
•

in the 1970s, much of it stemming from an explicit commitment to
inflation targeting.
They also make more use of forward guidance.
As a result, indications of future policy rate increases are incorporated
into current financial market pricing, before policy actions are taken.
This has been a key factor in current market pricing, as the 2-year
Treasury yield and the 30-year mortgage rate have increased
substantially.

18

Market pricing based on Fed credibility

Sources: Optimal Blue and Department of the Treasury. The gray shaded area indicates U.S. recession. Last observation:
May 5, 2022.
19

Not as far behind the curve
• Let’s now return to the minimal Taylor-type rule calculation, which
•
•
•

recommended a policy rate of 3.63%.
In light of the forward guidance that has been given by the Fed since the
fourth quarter of 2021, the 2-year Treasury yield may provide a better
representation of where Fed policy is likely to be in the near future.
The value of the 2-year Treasury yield as of May 5 was 2.71%, about 90
basis points shy of the rate recommended in the simple Taylor-type rule
calculation.
This suggests the Fed is not as far “behind the curve,” although it would
still have to raise the policy rate to ratify the forward guidance.
20

But … still behind the curve
• Recall that the recommended policy rate of 3.63% from the simple
•
•

Taylor-type policy rule calculation involved some choices.
In particular, a higher value for 𝑅𝑅∗ or a broader definition of inflation
would lead to the rule recommending a much higher value for the
policy rate.
Therefore, the second interpretation probably still leaves the Fed
behind the curve but by less than it appears based on the first
interpretation.†

† For

additional analysis of Taylor-type rules and the role of Fed credibility in the current circumstance, see D.H. Papell
and R. Prodan, “Policy Rules and Forward Guidance Following the Covid-19 Recession,” unpublished manuscript,
University of Houston, April 12, 2022. They conclude that the FOMC is currently about 100-125 basis points behind their
rule recommendation.
21

Defining “behind the curve”

Sources: Bureau of Economic Analysis, Congressional Budget Office, Department of the Treasury, Federal Reserve Bank
of New York and author’s calculations. Last observations: March 2022 and May 5, 2022.
22

Risks to Inflation Expectations

23

Inflation expectations
• One might argue that the current situation is more about waning Fed
•
•
•

credibility with respect to its inflation target.
According to TIPS markets, straight-read inflation expectations are rising.
The 5-year inflation compensation measure was 3.23% as of May 5.
In economic theory, expected inflation and actual inflation should be
closely related.
The current divergence between actual inflation readings and TIPS-based
expected inflation will have to be resolved, possibly resulting in still
higher inflation expectations.

24

Actual and expected inflation

Sources: Federal Reserve Bank of St. Louis and Bureau of Economic Analysis. Last observations: March 2022 and April
2022.
25

Conclusion

26

Two interpretations

• Generously defined Taylor-type monetary policy rules, even if based on

•
•

a minimum interpretation of the persistent component of inflation, still
recommend substantial increases in the policy rate. By this first
interpretation of “behind the curve,” the Fed is far behind.
The first interpretation does not take into account Fed credibility or its
use of forward guidance.
Credible forward guidance means market interest rates have increased
substantially in advance of tangible Fed action. By this second definition
of “behind the curve,” the Fed is not as far behind, but it must now
increase the policy rate to ratify the forward guidance previously given.

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Connect With Us
James Bullard

stlouisfed.org/from-the-president
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