Irma Rosenberg: The monetary policy decision-making process
Speech by Ms Irma Rosenberg, First Deputy Governor of the Sveriges Riksbank, at
Riksbanken, Stockholm, 13 June 2008.
* * *
The Riksbank is considered to be one of the most open central banks in the world.1
Openness has also been one of the basic principles in shaping our activities. If an
independent central bank is to be perceived as credible it must be possible for outsiders to
understand its decisions and to assess its activities. We have therefore tried to be as open
and clear as possible about what we do and why we do it. This increases the credibility of our
monetary policy and makes it easier to anchor inflation expectations around the target. Part
of this openness entails clearly describing how our analyses are achieved and the processes
for making interest rate decisions.
I believe that most people are familiar with the way we conduct monetary policy in general.
We look ahead and base our monetary policy on forecasts. We have held many speeches on
this subject. But how do we go about producing a forecast that leads to a decision on the
interest rate? This is probably not as well-known and I intend to talk about it today. In recent
years we have changed our methods of working in a number of fields. For example, since the
beginning of 2007 we report very clearly the future interest rate path we expect to see. Our
forecasts of inflation and other components, like the interest rate decisions, are based on a
forecast of the future repo rate path. These forecasts change as new information is received,
but we report our current views of the future every time we publish a monetary policy
decision.
The Riksbank is governed by an Executive Board
The year 1999 is a natural starting point when describing the process for monetary policy
decision-making. This was when the price stability target was prescribed by law and the
Riksbank was given a more independent position with regard to our principal, Sveriges
Riksdag (the Swedish parliament). This entailed a major change with regard to our
decisionmaking and the way we work in relation to the General Council of the Riksbank.
As you already know, the work at the Riksbank has been headed since 1999 by an Executive
Board consisting of six members, one of whom is Governor of the Riksbank and Chairman of
the Executive Board. The members are appointed for a period of six years at a time.
Normally the periods of office for the different members overlap to create continuity in the
work of the Bank. Previously it was the Governing Council of the Riksbank, whose members
are appointed by the Riksdag, who governed the Bank together with the Governor. Today the
General Council has more of a controller function. They appoint the members of the
Executive Board, but do not have any influence over, for instance, the decisions on the repo
rate. It is the Executive Board which independently makes the decisions.
The Executive Board is what is usually known as an individualistic committee.2 This means
that each member has an individual responsibility. Interest rate decisions are made by voting
and the members can then publicly express their views. The Bank of England also has this
type of committee. In this, we differ from a number of other central banks, although most
have a committee that makes decisions on the interest rate.3 One exception is, for instance,
New Zealand, where the central bank governor is alone in making the decisions.
Many other central banks instead have a collegial committee. In this case the members
reach a decision which they then all publicly support. Any differences of opinion are kept
within the group; outwardly they speak with one voice. The way they reach a decision varies.
In what is known as a genuinely collegial committee the decision is preceded by an internal
discussion where each member puts forward his or her views. The ECB is an example of this
type of committee. In an autocratically collegial committee, on the other hand, it is the
chairman who more or less dictates the group's "consensus". Some researchers have
considered the Federal Reserve's FOMC committee under the leadership of Alan Greenspan
to be an example of such a committee.4 The changes made recently indicate that the FOMC
is more of an individualistic committee. The Riksbank is one of the central banks with the
most pronounced individual responsibility.
Major changes in the way the material for the decision is produced
During the years I have worked at the Riksbank there have been major changes in the work
on producing the material for monetary policy decision-making.
Six years ago our forecasts were based on the assumption that the repo rate would be held
unchanged, regardless of whether or not this was a realistic assumption. The forecasts
extended two years ahead, compared with the current three years. The analysis was to a
great extent based on assessments and discussions. Formal models were used but did not
play the same central role as they do today. Although this functioned fairly well, it also
involved limitations. For example, it is difficult to see how alternative scenarios - something
that is being given greater scope in our analysis - could be used without a more coherent
model. The fact that we are now using models more also makes it easier to explain how a
forecast is made and to assess the forecasts.
In recent years we have made some major changes that have had significance for the way
we organise our internal forecasting work. The main change being that we now base our
forecasts on our own view of the future repo rate path and we give this forecast relatively
large significance when communicating our monetary policy. We have also worked
extensively on bringing in new, larger models, such as general equilibrium models, into the
forecasting work.
The forecasts are the result of an interplay between models and assessments
Our toolbox for making forecasts consists of assessments, theories, empirical studies and
models. These tools complement one another and have different roles in the work. They are
all important and necessary to make as good forecasts as possible.
As the economy is so extremely complex, we use various macroeconomic models to help us
piece together a coherent picture of the economy. These models are based on modern
economic theory, empirical studies and practical experience of different correlations in the
economy. This makes it easier for us to make a consistent assessment of how the different
parts of the economy will develop. If one merely studies individual correlations one misses
the interdependence existing between the different parts and sectors of the economy. There
is a considerable risk that the different parts of the analysis will not hold together.
But models are merely simplifications of the reality. They must be supplemented with
analyses and assessments by experts in different fields. The experts have important insights
into the real situation that the models are unable to capture. Forecasts based on models
provide a good starting point and help to structure the discussions. The experts then adjust
the models' forecasts on the basis of their specific knowledge and assessments. The
assessments become particularly important when unusual events and structural changes
occur in the economy. Such models, which are merely based on historical correlations, may
have difficulty dealing with these.
Major advances in academic research regarding macro models
In recent years models have come to play an increasingly important role in the forecasting
work. This is also the case for many other central banks. The background is that methods
have developed very quickly with regard to the empirical properties and forecasting
performance of large structural macro models. There have also been major advances with
regard to time series models, that is, models focusing on regularities in data and based to a
lesser extent on economic theory.5 Increasingly powerful computers have played an
important role in this context. They enable us to make advanced and time-consuming
calculations.6
Structural macro models have been based to a greater extent than before on micro based
theory of household and corporate behaviour. For example it is assumed in the models that
there are various market imperfections combined with nominal and real rigidities. The agents
in the model also have rational expectations, that is, they use the information available in the
best possible way when they make their decisions. This type of model is usually referred to in
the research literature under the generic term of New Keynesian DSGE models.7 The
methods have been developed in close cooperation between academic researchers and
economists at central banks who have exchanged ideas and experiences.
The Riksbank has developed its own macro model for the Swedish economy
At the Riksbank we have developed a dynamic macro model for the Swedish economy which
is known as Ramses.8 This is a so-called general equilibrium model and belongs to the
group of New Keynesian DSGE models. General here means that it tries to explain the whole
economy and not merely a particular section of it, such as private consumption or the labour
market. The fact that it is an equilibrium model means that it assumes that market
mechanisms create a balance between supply and demand in the different markets of the
economy.
Ramses is currently used to make forecasts, to interpret economic developments and to
calculate the effects of monetary policy, for example. Some areas are not yet very well
developed in Ramses. This includes, for example, fiscal policy and the credit market. We
therefore use partial models that focus on certain individual variables as a complement to
Ramses. We also use so-called Bayesian VAR models. A VAR model is a system of
equations, which can be used for instance to capture the average variation in macro data.9 In
a Bayesian VAR model some form of subjective information prior to estimation is used, for
instance how high the long-term sustainable growth rate is.
In general, the further ahead we look, the more importance we give to economic theory and
the assumptions of long-term equilibrium in Ramses and the Bayesian VAR models. To gain
an impression of the current situation in the Swedish economy we instead use different time
series models and indicator models. These are used to make forecasts 1-2 quarters ahead.
The forecasts are then used as starting values in the large macro models. Of course there
are also substantial elements of assessments of what comprises a probable development for
the economy throughout the entire process.
Material for our assessments and forecasts comes from many sources
On the whole, we use official statistics and the results of surveys from authorities such as
Statistics Sweden and the National Institute of Economic Research and their counterparts in
other countries. We also closely follow the assessments made by other forecasters in
Sweden and abroad and regularly evaluate our own forecasting performance. We also bring
back new impressions from the many international meetings we regularly attend. In addition,
the Riksbank has begun to carry out its own company surveys. This involves our employees
visiting companies around the country and hearing their views on the economic situation.
This is a means of obtaining explanations of what we can see in the official statistics and of
capturing tendencies before they appear in the statistics.
The process begins with a discussion of the risks
Before I go in greater detail into how we make forecasts, I would like to make some general
observations. Firstly, making forecasts is a continuous process. Many of us at the Riksbank,
both Executive Board members and employees in the different departments, closely monitor
economic activity. The increased use of models makes it easier to some extent to update the
forecasts when new information is received. But we only make a new, thorough and coherent
assessment of what all the new information means for future monetary policy in connection
with our monetary policy meetings, which are held six times a year.
Another observation is that the Executive Board as a collective is now more involved in the
forecasting process than it was a few years ago. This is largely because we have chosen to
publish our forecast for the repo rate. I shall return to this shortly.
A third observation concerns the logic of the process. We try to deal with that which is
independent of our own monetary policy at an early stage. Sweden is a small, open
economy, so the international forecasts can be settled without taking into account what may
later crystallise into a well-balanced Swedish monetary policy. The current situation in the
Swedish economy is also largely independent of what the Executive Board determines at the
next meeting, in that it takes time before monetary policy has an effect on the economy and
inflation.
But please note that we have a relatively broad definition of the "current situation". The
National Accounts are published with a lag of almost one quarter. They are our most
important source of statistics regarding the real economy. This means that we often do not
know at the start what the outcome was for the economy during the previous quarter. This
means that an assessment must be made for both the previous quarter and the current
quarter. We use various indicators that are published on a monthly basis to make this
assessment.
So what is the actual process for making the forecasts? It usually starts around eight weeks
before the monetary policy meeting (see Figure 1). This is the case when a Monetary Policy
Report is going to be published; otherwise the process is slightly shorter. In total, around 30
economists are involved in some phase of the forecasting work, together with the Executive
Board members.
The material for the monetary policy meetings is mainly produced in the Monetary Policy
Department in close cooperation with the Executive Board. The process begins with a risk
meeting. The participants at this meeting are the Executive Board, employees of the
Monetary Policy Department, some employees from other departments and some advisers to
the Executive Board. The purpose of the meeting is to capture at an early stage various
types of risk and alternative sequences of events for the economy that we envisage in the
future. The discussions at this meeting are relatively unbiased and take a broad perspective.
It is at this meeting that the alternative scenarios begin to take shape, those that are later
described in Chapter 2 of the Monetary Policy Report and that show how the economy might
develop if particular events occur. The scenarios can be used as a kind of counter-example
to explain why the Executive Board considers that the main scenario is the one that at
present gives the most well-balanced monetary policy. It can also illustrate different risks that
an individual member wishes to illustrate or perhaps even a scenario that one person prefers
instead of the main scenario.
Our experience is that the work on the different scenarios makes it easier for us Executive
Board members to agree on a main scenario that the majority of us can support. The results
are then presented at something called the first large monetary policy group meeting. This
meeting is held in roughly the third week of the eight-week long forecasting process. Of
course, we also have the capacity to produce new alternative scenarios later on in the
process if this is necessary.
Several different meetings lead up to the main scenario
Prior to the first large monetary policy group meeting a number of meetings are held within
the Monetary Policy Department. The Executive Board members are invited to intend these
meetings, but they are mainly intended to be working meetings for the economists. The
discussions are often at a relatively detailed and technical level. It is at these meetings that
the forecasts in the main scenario begin to take shape. The main scenario is the
development we consider to be the most probable and which is described in Chapter 1 of the
Monetary Policy Report.
Important new statistics and new events in Sweden and abroad are presented and analysed
at these meetings. There are also comparisons with how developments relate to the earlier
assessments. The purpose is to gain an impression of the current status of the economy.
For a small, open economy like Sweden the natural starting-point for the forecasting work is
how economic activity and inflation develop in the world around us. The forecasting work
therefore begins with an international outlook meeting, which has the purpose of reaching a
preliminary forecast for international events.
Soon after this a financial market meeting is held. At this meeting there is a discussion of
market participants' expectations of the repo rate and how these have changed since the
previous monetary policy meeting. These are then compared with the model forecasts for the
repo rate and how these have changed. In addition, there are analyses and discussions of
what has happened in the financial markets since the previous assessment. House prices,
credits, stock market rates, exchange rates, money supply, international rates and so on are
also discussed at this meeting.
After this a current status meeting is held, where the focus is on the current situation in the
Swedish economy. One particularly important aspect is to assess how much of the Swedish
economy's total resources in the form of labour and machinery are currently being used to a
normal extent. Apart from new information on the current economic situation, there are also
discussions of other new information that may be important for the forecasts in the slightly
longer term.
The first monetary policy group meeting with the Executive Board summarises new
information
After this it is time for the first large monetary policy group meeting. The entire Executive
Board and most of the members of the Monetary Policy Department take part in this meeting.
In addition, a number of advisers to the Executive Board and employees of the Financial
Stability Department usually take part. A summary of the new information and the current
status of the economy in Sweden and abroad is presented at the meeting. We also run
through the alternative scenarios ordered at the risk meeting a few weeks earlier and discuss
whether they really capture the risks that we Executive Board members envisage. We also
have the opportunity at this meeting to request more information on various issues
considered important to the coming decision. The meeting usually takes around three hours.
Monetary Policy Department establishes its forecasts
At approximately the same time as the meeting with the Executive Board, the Monetary
Policy Department establishes its view of macroeconomic developments over the coming
three years. In a preliminary stage it focuses on around ten key variables such as inflation,
interest rates, GDP, number of hours worked, exchange rates and resource utilisation. The
forecasts are produced on the basis of the exogenous conditions, the international forecasts,
the model forecasts for the Swedish economy conditional on the current situation and
assessments. The forecast for the interest rate path produced by the Monetary Policy
Department is meant to reflect the Executive Board's normal, historical behaviour. It is not
any form of recommendation from the Department. All of this is discussed at a macro
forecasting meeting in the Monetary Policy Department.
When the overall macroeconomic picture has been established, the economists chisel out
the different points of the forecast in more detail. For instance, they make a complete
forecast of the components in the balance of resources and in the labour market. Finally they
check the overall picture to ensure that the different parts of the forecast hold together and
have been added up correctly. In total, the economists forecast around fifty variables. All of
these are then compiled into an internal document that summarises the Department's view of
how inflation and economic activity will develop in the future. Another document is also
created, explaining how the forecasts are affected by model results and assessments.
None of the Executive Board members takes part in this stage. The idea is that the product
then reported to us will as far as possible be a civil servants' product. It should not be
influenced by the ideas of the different Executive Board members. The civil servants thus
hold a relatively strong position in the process. The Executive Board's main contribution is
not to get involved in all of the details of the forecasts - instead we shall highlight different
perspectives and broaden the analysis. The fact that the civil servants produce their own
draft forecasts also contributes to strengthening and maintaining the internal competence.
The Executive Board discusses the forecast at the second large meeting
The Monetary Policy Department then presents its forecast for the main scenario to the
Executive Board at the second large monetary policy group meeting. This takes place in
week five, that is, approximately three weeks prior to the monetary policy meeting. The
organisation of this meeting differs from the first one. The meeting is divided into two parts.
The first part of the meeting is open to the majority of the employees of the Monetary Policy
Department. The civil servants then report their outlook on the economy over the coming
years. They present the results from any in-depth reports ordered by the Executive Board.
There is now an opportunity for us Executive Board members to ask questions about and
express opinions on the forecasts to the different sector experts.
The second part of the meeting is held in a smaller circle consisting of the Executive Board,
senior staff at the Monetary Policy Department, a couple of advisers and representatives of
the Communications Secretariat. It is now that the Executive Board discusses and expresses
opinions on the main scenario on the basis of its assessments. This may sometimes mean
giving different weight to alternative macroeconomic scenarios, that is, the risks. The main
scenario is then adjusted in accordance with the views of the Executive Board. In this
situation the forecasts, including the interest rate forecasts, may be regarded as a
wellfounded guess as to which main scenario will receive the support of a majority of the
Executive Board members a few weeks later. But there is still a possibility for the Executive
board to make changes to the forecasts. The Executive Board can also ask the civil servants
to provide further in-depth reports or follow up certain issues. These are then presented 1-2
days later at a follow-up meeting with the Executive Board.
Here I would like to take the opportunity to refer to the current round of forecasts. On Monday
we will be discussing the Swedish macroeconomic outlook at the second large monetary
policy group meeting. This means that we Executive Board members are entering an intense
phase of the monetary policy process. The decision-making situation we have had during the
spring has on the one hand concerned rising inflation and on the other hand signs of a
slowdown in economic activity. In both respects the outcome for Sweden has been slightly
worse than we had anticipated in the April Monetary Policy Update. The inflation figure for
May was 0.4 percentage points higher than we had forecast in April. A large part of this
deviation is due to energy prices having increased more than we had expected. At the same
time, growth was lower. The National Accounts for the first quarter of this year show that
GDP growth was 2.2 per cent, which was 0.6 percentage points less than we had forecast in
April. In principle, we are now facing the same type of problems in our deliberations, that is,
rising inflationary pressure and weaker economic activity. The way we Executive Board
members finally decide to balance these factors and all of the other new information we will
receive is something we will return to at our monetary policy meeting on 2 July. We are six
Board members and it is during the coming weeks that each person will finally form his or her
opinion of how the economy will develop in the future and what monetary policy is required to
attain the inflation target at the same time as avoiding excessive fluctuations in the real
economy.
Material reworked into a Monetary Policy Report
After the second large monetary policy group meeting the Monetary Policy Department
continues its work and compiles the first draft of the Monetary Policy Report. The Department
now has close contacts with the Executive Board. A formal Executive Board meeting is held
the week after the second meeting with the focus being on the forecasts. The editorial work
on the Monetary Policy Report continues and is regularly checked with the members of the
Executive Board. A few days prior to the monetary policy meeting we have another formal
Executive Board meeting where we go through the text of the report in detail and where the
report is tabled. However, the forecast can be changed as late as during the monetary policy
meeting. It is not until the monetary policy meeting that the text and forecasts of the
Monetary Policy Report are finally determined.
The Executive Board makes interest rate decisions through a majority vote
The Executive Board holds six monetary policy meetings a year. If necessary we can meet
more often. The number of meetings is not stipulated by law, but is determined by us
Executive Board members.
We make decisions on the current level of the repo rate at the monetary policy meetings. We
also agree on which interest rate path is most appropriate at the present time. The decisions
are made through a majority vote, where the Chairman of the Executive board has a casting
vote, and they are announced in a press release.
In addition to the Executive Board members, a number of employees from the Monetary
Policy Department and the Communications Secretariat take part in the meeting, as well as
some advisers and legal advisers. In addition, the Chairman and Vice Chairman of the
General Council regularly take part in the meetings and thus obtain a good insight into the
work of the Executive Board. They both have the right to express opinions, but not to put
forward proposals or take part in any decisions. In total, around 20 persons are usually
present at the meeting.
What happens at a monetary policy meeting? There is an agenda which states the order in
which we will discuss the different items. The meeting usually begins with a brief update on
how the financial markets have developed, including market expectations of the repo rate
with regard to our meeting, and other new, important information that has been received in
the last few days. This is followed by a summary of the main elements in the Monetary Policy
Report or the Monetary Policy Update.
After these introductory words from the civil servants, I and my colleagues go on to discuss
economic developments over the coming three years. First we deal with economic activity
and inflation abroad and in Sweden. Each person puts forward his or her view of the current
economic situation and how the interest rate needs to be adjusted to attain the inflation
target. There is no predetermined order as to who will begin the discussion. The discussion
is fairly free at this stage. During the course of the process each one of us has formed his or
her own opinion, but of course the formal decision is not made until the actual meeting. The
Chairman of the Executive Board usually concludes by summarising the discussions held
and what proposals have been put forward regarding the current interest rate. After this we
move on to the decision and vote.
To give the general public insight into the decision-making process and to make it easier to
assess our activities, we take minutes at the meeting which the bank then publishes. As of
summer 2007, we also write the member's names in the minutes. The minutes are published
around two weeks after the monetary policy meeting.
Interest rate decision announced on the day after the monetary policy meeting
A press release is published the day after each monetary policy meeting. This contains the
most important reasons for and considerations behind the majority decision. The press
release also contains the Riksbank's forecasts for economic activity and inflation and a
description of what monetary policy is currently considered to be well balanced. In
connection with the publication of the interest rate decision we also hold a press conference
where journalists are given the opportunity to ask questions.
In connection with three of the monetary policy meetings a Monetary Policy Report is
published. On the other occasions a shorter Monetary Policy Update is published instead.
This contains a more limited number of forecasts for the central macro variables.
That is to say, it is the majority view that is reflected in the press releases and the reports.
Any differences of opinion can be seen in the minutes of the monetary policy meetings.
There it is stated in detail how each of the members has argued and voted. But before the
minutes are published it is the majority line that applies when we Executive Board members
make speeches outside of the Riksbank. After that we members are each free to describe
our personal differences of opinion regarding the interest rate decision.
Constant assessment means that we are always prepared for change
Let me round off. Today I have talked about the major changes in recent years in the way we
produce material used as a base for our interest rate decisions. Some of these have come
about because the methods of making forecasts in general have developed, something that
also affects other central banks.
Other changes have been shaped by the specific conditions that apply in Sweden. The
Riksbank's independent position makes demands on us to be open and clear, what
economists usually term transparency. The Riksbank's decision to begin publishing its own
forecasts for the repo rate is a step in the work on increasing transparency and further
improving our analysis.10
The new assumption for the repo rate has led to the Executive Board becoming more
involved in the forecasting process. We are constantly evaluating our forecasts to see how
successful they are at capturing developments. This also means we are constantly striving to
improve our ways of working. If we make any major changes that have significance for our
forecasts we will of course let you know.
Sources:
Adolfson, M., M. Andersson, J. Lindé, M. Villani and A. Vredin, (2007a), "Modern Forecasting
International Journal
Models in Action: Improving Macroeconomic Analyses at Central Bank",
of Central Banking, vol. 3, December, pp.111-144.
Adolfson, M., S. Laséen, J. Lindé and M. Villani, (2007b), "RAMSES - a new general
equilibrium model for monetary policy analysis", Sveriges Riksbank Economic Review, no. 2.
Blinder, A.S. and C. Wyplosz, (2004), "Central Bank Talk: Committee Structure and
Communication Policy", Working Paper, prepared for the ASSA meeting, Philadelphia,
January 7-9, 2005.
Dincer, N.N. and B. Eichengreen, (2007), "Central Bank Transparency: Where, Why and with
What Effects?" National Institute of Economic Research Working Paper 13003.
Rosenberg, I., "Riksbank to introduce own path for the repo rate", 17 January 2007.
Pollard, P., (2004), "Monetary Policy-Making around the World", Powerpoint presentation,
Federal Reserve Bank of St. Louis.