Philip N Jefferson: Research and statistics centennial anniversary -
past, present and future
Speech by Mr Philip N Jefferson, Vice Chair of the Board of Governors of the Federal
Reserve System, at "A Look at the Past, Present, and Future," a conference celebrating
the Centennial of the Division of Research and Statistics, Board of Governors of the
Federal Reserve System, Washington DC, 8 November 2023.
* * *
Thank you, Stacey, and thank you to the organizers for a thought-provoking conference.
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Provoking thought and discussion are very fitting ways to mark the centenary of the
Division of Research and Statistics (R&S).
In keeping with the conference theme, I have organized my remarks around the past,
present, and future of R&S. My reflection on the past, while idiosyncratic, is also, I
believe, indicative of a through line that characterizes the division historically. For me,
that past begins in 1983, when I came to the Board as a newly minted college graduate
to be a research assistant (RA) in the Government Finance Section, now known as
Fiscal Analysis. One of our primary tasks was to keep track of the volatile, and
somewhat unpredictable, fluctuations in tax receipts. The daily numbers were
transmitted not by computer, but by telephone. Other data retrieval required RAs to go
to the Treasury directly in the luxurious conveyance of a D.C. taxicab, reimbursed by
the Board-a little perk that, as it happened, never came my way. In our section, though,
it was a lot of time on the phone, and the two economists I worked with, Al Teplin and
Wolf Ramm, would take down the numbers and pass them to me.
Obviously, many things have changed in R&S over the past 40 years. But one thing that
hasn't changed much is the role of RAs in analyzing data and participating in other
important functions performed by the division. Back then, armed with those tax receipt
numbers, I would be expected to put together a projection. My bosses had their own
projections, of course, and they subjected my work to very careful review. But I was
given that assignment because there was a widespread view then that RAs were here
to learn and to contribute meaningfully to research and policy work, and I felt a
considerable responsibility to do the very best I could with the important work I had
been given. Much has changed at R&S, but those values remain. As a young college
graduate, I was impressed with how seriously people in R&S took their responsibilities,
whatever their role. I am not the only person whose experience as a young person in
R&S was formative. In my case, it might seem remarkable that a former R&S RA has
returned as Vice Chair, but for decades, former RAs have been returning and serving in
leadership roles at the Board and throughout the System.
Moving from the past to the present, it has been a while since the things we thought we
understood well about the economy were subject to as much debate as they are today.
At the same time, an explosion of available data, much of it of high frequency and from
unconventional or alternative sources, has given R&S many more potential avenues for
analyzing the economy and, hence, much more to do. The list of alternative data
sources available to forecast economic outcomes seems almost endless, including
social media posts and web traffic, credit card purchases, geolocation, and satellite
imagery. These alternative data have transformed the way economists forecast future
outcomes and measure the effectiveness of monetary policy. For example, economists
can use postings to social media sites to analyze investors', journalists', and
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households' real-time interpretation of central bank communications. However, a
wealth of data does not necessarily translate into better forecasts and better insights.
Recent academic research suggests that alternative data mainly help forecast
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shortterm outcomes and not so much long-term outcomes. This is why it is important that
R&S continues to be at the forefront of research, making sure we are making the right
inferences with new tools and new data sources.
With respect to the future, my expectation is that today's challenges will persist. I have
already mentioned one challenge, which is to make sure we are acquiring the right
"alternative" data, making the right inferences, and appropriately using tools such as
artificial intelligence, including machine learning, to analyze this wealth of data. These
tools may be very good at estimating correlations, but we know that correlation does not
imply causation; thus, their usefulness may be limited. Identifying a correlation in the
data without identifying causation may lead policymakers to incorrect conclusions and
therefore lead us to implement inappropriate policies. In addition, these tools are very
good at data mining, which can be dangerous if it gives us the false sense that a good
in-sample fit leads to a good out-of-sample forecasting model. Economists in R&S and
other divisions, as well as academics, have made progress on this front, but there is
room for further improvement. In addition to the challenge of how to best use these
tools and data at the Fed, R&S faces the challenge of understanding what these new
technologies mean for labor productivity and the economy.
The other challenge I want to highlight is that of making decisions under uncertainty.
This is not a new challenge, of course. John Maynard Keynes and Frank Knight
provided book-length treatments of the subject a century ago (Keynes, 1921; Knight,
1921). In addition, in 2003, Alan Greenspan observed, "Uncertainty is not just an
important feature of the monetary policy landscape; it is the defining characteristic of
that landscape" (Greenspan, 2003). The fact that uncertainty has been a challenge for
so long makes me think that it will continue be a challenge going forward, and in the
wake of the pandemic, it is highly salient.
In 1967, William Brainard argued that uncertainty about the power of monetary policy
implied that policy should respond more cautiously to shocks than would be the case if
this uncertainty did not exist (Brainard, 1967). Brainard's attenuation principle is a
classic example of what has come to be known as the Bayesian approach to
uncertainty and is often cited as the foundation for the gradualism in the adjustment of
monetary policy. That said, methods based on theories of ambiguity aversion led to anti-
attenuation. In other words, to protect against uncertainty, the appropriate response
may be a quick and strong monetary policy response. Of course, the right response to
uncertainty is probably context specific and thus varies over time.
As Chair Powell mentioned in a speech in 2018, there are two particularly important
cases in which doing too little when there is high uncertainty comes with higher costs
than doing too much (Powell, 2018). The first case is when attempting to avoid severely
adverse events such as a financial crisis. In this situation, words like "we will do
whatever it takes" will likely be more effective than "we will take cautious steps." The
second case is when inflation expectations threaten to become unanchored. If
expectations were to begin to drift, the reality or expectation of a weak monetary policy
response would exacerbate the problem.4
How to respond to uncertainty is a matter that the Federal Open Market Committee,
with the help of R&S, has been wrestling with for a long time. While I could be wrong,
as of today, I do not foresee that some all-powerful artificial intelligence will be able to
perfectly balance the risks of doing too little or too much. Therefore, I expect that long
into the future, we'll be relying on the knowledge and good judgment of the people of
R&S to weigh the risks and to help in providing options to monetary policymakers so
that they can make informed decisions.
In closing, congratulations on a century of service to the Fed and the American people.
I have every expectation that the next 100 years of the Division of Research and
Statistics will be just as integral to the prosperity and well-being of the American people
as it has been to date.
Thank you!
References
Brainard, William C. (1967). "Uncertainty and the Effectiveness of Policy," American
Economic Review, vol. 57 (May), pp. 411-25.
Dessaint, Olivier, Thierry Foucault, and Laurent Fresard (2023). "Does Alternative Data
Journal of Finance,
Improve Financial Forecasting? The Horizon Effect," forthcoming.
Greenspan, Alan (2003). " Monetary Policy under Uncertainty ," speech delivered at a
symposium sponsored by the Federal Reserve Bank of Kansas City, Jackson Hole,
Wyoming (August 29).
Keynes, John Maynard (1921). A Treatise on Probability. London: Macmillan.
Knight, Frank H. (1921). Risk, Uncertainty and Profit. Boston: Houghton Mifflin.
Powell, Jerome H. (2018). " Monetary Policy in a Changing Economy ," speech delivered
at "Changing Market Structure and Implications for Monetary Policy," a symposium
sponsored by the Federal Reserve Bank of Kansas City, Jackson Hole, Wyoming
(August 24).
Schmanski, Bennett, Chiara Scotti, Clara Vega, and Hedi Benamar (2023). "Fed
Communication, News, Twitter, and Echo Chambers," Finance and Economics
Discussion Series 2023-036. Washington: Board of Governors of the Federal Reserve
System, May.
Söderstrom, Ulf (2002). "Monetary Policy with Uncertain Parameters," Scandinavian
Journal of Economics, vol. 104 (March), pp. 125-45.
1
The views expressed here are my own and not necessarily those of my colleagues on
the Board of Governors or the Federal Open Market Committee.
For an example of recent research that looks at Twitter posts during FOMC days, see
Schmanski and others (2023).
3
Dessaint, Foucault, and Fresard (2023) find that alternative data mainly helps forecast
short-term outcomes.
4
For example, Soderstrom (2002) shows that when there is uncertainty about the
persistence of inflation, it is better to implement monetary policy that is aggressive than
gradual.