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St. Louis Fed's Bullard Weighs the Impact of
Quantitative Tightening
February 22, 2019
New York – Federal Reserve Bank of St. Louis President James Bullard on Friday offered his
views on the future of the Federal Reserve’s balance sheet at the 2019 U.S. Monetary Policy
Forum hosted by the University of Chicago’s Booth School of Business.
In his presentation, “When Quantitative Tightening Is Not Quantitative Tightening,” Bullard
made the argument for why the Fed’s balance sheet policy may be less important today than
it was during the period when quantitative easing was most effective.
The Federal Open Market Committee (FOMC) has raised the policy rate and, since late 2017,
simultaneously reduced the size of the Federal Reserve’s balance sheet, he pointed out.
Many have argued that the balance sheet reduction—or quantitative tightening (QT) as it is
sometimes called in global �nancial markets—could operate in the background with
relatively small macroeconomic effects, Bullard said.
Others argue that balance sheet reduction should have equal and opposite effects relative to
balance sheet expansion, or QE, he explained, and, accordingly, that there may be relatively
large macroeconomic effects.

The Case for Small Effects from QT
Bullard argued that the case for relatively small macroeconomic effects of balance sheet
reduction is more accurate. He suggests that “it is indeed possible to view quantitative
easing as having an important in�uence on the macroeconomy and simultaneously view
the macroeconomic effects of unwinding the balance sheet as relatively minor.”
“This may be one reason why the FOMC’s balance sheet reduction policy beginning in the
fall of 2017 seemed to have only minor effects in �nancial markets,” Bullard said.
The balance sheet reduction has arguably been signi�cant, he added, pointing out that the
Fed has been able to reduce reserve balances by about 40 percent from the peak.

Baseline Neutrality
Bullard noted a 2010 paper1 suggesting that in situations where �nancial markets are
functioning properly, temporarily expanding the level of reserves beyond the satiation point
for banks would have no direct effect on the economy.
This is one way to formulate a neutrality theorem for the size of the Fed’s balance sheet in
ordinary times or when the policy rate is well above the zero lower bound, he explained.
“A baseline neutrality theory suggests temporarily increasing the Fed’s balance sheet size
beyond the minimal level needed to implement monetary policy has no macroeconomic
effect at all when the policy rate is well above the zero lower bound,” Bullard explained.

Signaling Effects
However, while the Fed’s policy rate was near zero, the Fed’s balance sheet policy
nevertheless had an important macroeconomic impact through a signaling channel, he
continued.
Bullard noted that actual effects of quantitative easing appear to be far from neutral,2 and
one theory as to why this may be so is that QE did not have direct effects but did send a
credible signal about how long the FOMC intended to keep the policy rate near zero.
With the policy rate near zero, he explained, the FOMC may wish to signal convincingly that
they will keep the policy rate near zero “for longer,” that is, beyond the time that an ordinary
approach to monetary policy would call for rising rates. “QE may have been a good
approach to accomplish this objective,” he said.
“Once the policy rate rose above the lower bound, balance sheet movements no longer
provided a valuable signal about the future direction of monetary policy,” he added.
This means that baseline neutrality would again apply, Bullard said, “and the size of the
balance sheet could be reduced without important macroeconomic consequences.” In other
words, the balance sheet reduction could occur “in the background,” he noted.

Asymmetric Effects
In summary, the �nancial and macroeconomic impact of the FOMC’s balance sheet policy
may well be asymmetric, Bullard noted.
“With the policy rate near zero, the effects of QE may have been substantial due to signaling
effects,” he said. He pointed out that the FOMC normalized the policy rate to a considerable
extent during 2017 and 2018. “Now, with the policy rate well above zero, any signaling

effects from balance sheet changes have dissipated,” Bullard added.
This means quantitative tightening does not have equal and opposite effects from
quantitative easing, he pointed out. “Indeed, one may view the effects of unwinding the
balance sheet as relatively minor,” he said.
1 See V. Cúrdia and M. Woodford, “Conventional and Unconventional Monetary Policy,”

Federal Reserve Bank of St. Louis Review, July/August 2010, 229-64.
2 See S. Bhattarai and C.J. Neely, “An Analysis of the Literature on International

Unconventional Monetary Policy,” Working Paper No. 2016-021C, Federal Reserve Bank of
St. Louis, October 2018.