Fed’s Keeper of
Secret Teal Book Lifts Veil on New Forecast Era
By
March 11, 2021, 10:00 AM
GMT
Stacey Tevlin is the most important person in U.S. economics
that you have probably never heard of. She leads a team of 357 people in the Federal Reserve’s Research and Statistics
division, which is entrusted with the forecasts for policy makers as they
weigh interest rates every six weeks.
Her work appears in a document called the Teal Book, which is kept confidential for five years. She
doesn’t go on television, give speeches, or even talk to reporters very often.
Yet her team’s work has so much influence on the policy debate that one former
Fed governor calls the staff forecast “the 13th member” of the Federal Open
Market Committee.
Bloomberg News spoke to her in February. The interview has
been edited for brevity and clarity.
1. Where did you grow up, what did your parents do, and how
did that shape your world view?
Where I grew up definitely shaped my world view. I grew up
outside of Detroit in the 1970s and 1980s. I lived through some of the big
recessions that hit Detroit hard. That was a presence as I was growing up.
People were losing their jobs and moving out of town. My parents’ jobs weren’t
affected by that. My dad was a history teacher and my mom taught English, but
we lived in a neighborhood which was mostly auto workers and their families.
Tevlin, 52, earned a Ph.D. in economics in 1995 from
the Massachusetts Institute of Technology and a B.A. in economics from
Northwestern University in 1990. She wrote her dissertation on how successful firms distribute profits. Her
adviser was Robert Solow, winner of the Nobel Prize in Economics.
When I went to college, I thought I would be an engineer
because I really liked math. Then I took Bob Gordon’s macro course in my
freshman year and recognized it was about those gyrations we had lived through.
That really grabbed me on a personal level, and that’s part of the reason I
decided to become an economist.
2. How did you
forecast the virus and the economy in the days before the vaccine
and how do you do it now?
We forecast both the course of the virus and vaccine
availability because we have to. They are basic assumptions that underlie our
understanding of the economy.
A year ago I wouldn’t have had any idea how to do that. We
don’t have any epidemiologists on the staff. What we do have are a lot of
people who understand complicated models and data really well.
A number of people on our staff have invested a significant
amount of time learning both the math and the science of pandemics,
mitigation strategies, and vaccines so we could build an understanding of
how they are likely to evolve and affect the economy.
At the very beginning, we developed a whole new set of
daily and weekly indicators to track the economy. We started a reading group where we compiled all the Covid-related
economic research -- I think it was 200 papers last I checked -- making
sure we are on top of the research. We got up to speed pretty quickly on
this.
3. The Fed is experimenting with novel data sets that are closer
to real-time indicators. Which gave you an edge?
Having timely data made a huge difference in our
understanding. More than what we had in hand, it was that we had built up knowledge
in how you go about acquiring, storing, and transforming these alternative data
sets.
A lot of the things we wanted to know about changed, so
while we did still use the high-frequency data that we had been developing for
six years, we also pivoted very quickly to find what we needed.
We had a team of entrepreneurial
data enthusiasts already in place who were willing to go out and uncover
great new data sources before I would have thought to ask for them.
4. The FOMC has a new
strategy focused on shortfalls from
full employment. How has that changed your approach?
When we put together a projection, we need to write down a
path for monetary policy that yields a sensible forecast. Using a monetary
policy rule is a straightforward and transparent way to do that, even though
the FOMC doesn’t use a rule for policy.
Last year, we made some changes to our rule to reflect those
updates. For instance, we made some tweaks to incorporate and acknowledge what
the FOMC said about achieving average inflation of 2% over time, and focusing
on shortfalls from maximum employment.
They didn’t specify a rule, of course, so we are not going
to capture exactly what they are going to do. To help them in their
deliberations, we also present different simulations for the economy using
different rules.
5. The board has few minority economists. Is that something
you are trying to change?
Absolutely. Almost every year for the past 10 or so that I
can remember we have made some changes in our recruiting process to try and
improve how we are doing it -- working on finding ways to overcome implicit
bias, making sure we have the best practices.
We also spend a lot of time and effort to make sure that we
are helping to build a pipeline of new
economists. In the last couple of years we have also really been making an
effort to address the inclusion piece
to make sure once you get diverse people at the board that they feel welcome.
I don’t want to make it sound all rosy. We are working hard
on diversifying our workforce, but we are not where we would like to be.
6. How do you forecast the impact of unprecedented U.S. fiscal stimulus?
We are always having to write down some assumption of where
fiscal policy is going to end up. We often have a pretty reasonable guess, but
we don’t always.
Then it gets harder, because we need to estimate how much of
the fiscal outlays actually get spent and when. We base that first on the
economic research. But then we also augment those studies to tailor them to the
current situation.
7. What’s the uncertainty
around that?
It’s huge. There
is definitely a lot of judgment we are imposing on this. We don’t think people
will react exactly as they have in the past. We have a lot of debates on
this as a staff.
We also run multiple scenarios. We know we don’t have
all the right answers but we look at different versions and show different
scenarios to policy makers.
We don’t know how people are going to behave. There is a
little bit of introspection and there is a lot of looking at survey questions
as we try and glean things, such as when people are going to be confident to go
out and start doing stuff.
We can try to build on how they have behaved so far in the
pandemic or across countries. We put all that together -- data, surveys,
cross-sectional analysis, and model estimates -- and honestly we look at it and
ask ourselves if the forecast seems at
all reasonable. I wish we had a better crystal ball.
Even if we get the health variables right in a
forecast, it is still an open question if we have the behavioral response
right.
9. It’s been a long year. What do you do for a boost to get
through the day?
If I can get out of the house, I would go ride my bike. That
would be a boost for me. But if I can’t because I am sitting in a meeting, and
this is kind of embarrassing to say, I am a big fan of chocolate milk and
peanut-butter crackers.
10. The pillars of
the economy are productivity,
population growth, technological change and diffusion. What do they look
like post pandemic?
We don’t know. But that is definitely something we are
thinking about: What do we want to focus on in the post-pandemic world? It will
likely be all of those pillars: What is the labor force going to look like, are
people who have left going to stay out permanently, are they going to be
drawn back in?
Definitely productivity is an important question since we are using technology so differently. How is that going to impact business models? We also have questions about market structure and pricing. There are so many interesting questions, but we don’t know the answers yet.
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