John Murray: Is there a commodity curse? Lessons from the past
Remarks by Mr John Murray, Deputy Governor of the Bank of Canada, at the University of
Alberta Institute for Public Economics and C.D. Howe Institute, Edmonton, Alberta,
6 May 2010.
* * *
Good evening. Thank you for inviting me to this significant and topical event. It's fitting that
this conference is dedicated to Bradford Reid. He will be missed by so many former students
and colleagues: as a friend, a dedicated teacher, and an insightful researcher. His particular
research interests included fiscal policy and public-debt management, and their implications
for the macroeconomy. These would certainly fit well with our discussions here today and
tomorrow.
As the title of the conference suggests, we have seen many boom-and-bust cycles in the
commodity sector. This raises one obvious and central question: How can we avoid them in
the future? More specifically, how can Canada and Alberta get out of this seemingly endless
cycle of feast or famine? The answer, regrettably, is that it isn't possible to eliminate the
cycle entirely. The best that we can hope to do is to dampen its effects by learning from past
experience. History, it has been said, is a good teacher, but policy-makers are not always
good students. Tonight, I'll present a few thoughts on how we might make better use of these
sometimes painful lessons.
Alberta and Canada are different from the rest
Canada's economy is different from most other advanced economies. Primary commodities
- resources - account for a much larger share of our national GDP. The estimated size of
the sector varies according to how it is defined, but using a reasonably conservative
approach, one finds that resource production represents about 10 per cent of Canada's
GDP, 5 per cent of total employment, and 45 per cent of export sales.1 The share of resource
production in U.S. GDP, by comparison, is only 5 per cent. Canada is a large net exporter of
raw materials, unlike the United States, which is a large net importer. In this respect, the
United States is similar to most other advanced economies. Countries such as Canada,
Australia, and Norway, on the other hand, are the exceptions.
Alberta is also different when compared with most - but not all - of the nine other provinces
in Canada. In 2006, the last year for which Statistics Canada has comparable figures,
resources accounted for roughly 32 per cent of Alberta's GDP. This was lower than the figure
for Newfoundland and Labrador (at 40 per cent) and only slightly higher than that for
Saskatchewan (at 29 per cent.) But it was far above that of the other provinces. In British
Columbia, for example, natural resources accounted for less than 10 per cent of GDP, while
in Ontario - not surprisingly - it was barely 2 per cent. The bottom line, simply stated, is that
Canada is different, and Alberta is more different still, from many of its counterparts.
Special challenges of a commodity-based economy
Canada's natural resources are a tremendous gift. They have brought us enormous material
benefits - higher incomes and greater economic security than in many other countries. Most
other countries would gladly trade places with us, should we ever grow tired of our rich
resource endowment. Indeed, there are probably several provinces that would gladly trade
places with Alberta.
This isn't to say that being a commodity-based economy is problem free. In fact, this
conference is largely about the problems or, more positively, the challenges that our
dependence on commodities sometimes creates. Some economists have gone so far as to
say that there is a "commodity curse."2 They suggest that rich resource endowments are
actually inimical to economic development. Comparing the experiences of a large set of
countries, they observe that commodity-based economies tend, on average, to have slightly
lower growth rates, as well as lower income levels, than their resource-poor counterparts.
Before you become overly concerned or take strong objection to this claim, I should add that
the statistical relationship that I have just shown you is rather weak, and is dominated by the
results for a large number of developing countries for which the conservatorship of their
resources has proven to be more of a challenge. The evidence for advanced
resourceproducing countries, such as Canada, is typically much more positive. Once again, we are
the exception.
The reasons that have been put forward by way of explaining the so-called commodity curse
have both a political and an economic dimension. Researchers have found that many
countries with rich resource endowments suffer from weak governance and a democratic
deficit. The governments are often despotic, and the countries prone to armed conflict and
civil unrest. Property rights aren't respected, and institutional arrangements are weak.
This, obviously, is not an accurate characterization of countries like Canada, Australia, New
Zealand, and Norway. Nevertheless, Canada and all other commodity-based countries are
economic
subject to serious challenges, linked primarily to the extreme volatility of
commodity prices.
The long and short of price volatility
Some countries are large enough commodity producers (or consumers) that their actions can
materially influence global commodity prices. Saudi Arabia might be an example. But these
are certainly the exception. For the most part, commodity producers are price-takers. They
sell a fairly homogeneous product in a highly competitive market, and their actions have little
effect on the price that they receive.
Unfortunately, for countries like Canada and provinces like Alberta, these prices are typically
volatile, and highly uncertain. This volatility is caused, in large part, by the unusual nature of
the short-run demand and supply curves associated with most commodity markets. The
products that commodity-based economies sell typically have extremely low short-run
demand elasticities (i.e., demand is not very responsive to price changes.) Supply is similarly
inelastic, since it often takes time to bring new production online if prices suddenly rise, or to
reduce production if prices suddenly drop.3 Any move in either of these curves, therefore, is
likely to lead to outsized changes in global prices.
This erratic behaviour is evident in the movement of most commodity prices through time.
Commodity prices are typically much more volatile than those of other goods or services -
and one of the most volatile commodity prices of all is that of oil. This is bad news for energy
producers, and clearly complicates the task of planning and investment. Oil and natural gas
now account for the majority of Canada's commodity production.
Another important feature worth noting is that the long-run demand and supply elasticities for
most commodities are typically much higher. If commodity prices remain high, consumers
find ways to economize on their use, or find substitute products. New supplies also gradually
come online. All of these factors work to push prices lower. In this sense, there is a
selfcorrecting mechanism at play. Indeed, over the very long run - and here, I am referring to
decades - the average real price of most commodities has been surprisingly stable.4
Economists refer to this as "mean reversion." If we knew that this sawtooth pattern would
always be repeated - short-run spikes followed by an overshoot on the down side and an
eventual return to the long-run mean - it would save a lot of unnecessary cost and
disappointment.
But hope springs eternal, and many of the price movements last just long enough to
convince investors and governments that "this time it is different." And there is always a
chance that some day it will be different. In the intervening period, long-range investments
may have been set in train, new facilities built, and workers relocated - all initiatives that
have to be reversed once prices correct. This is not always a problem, however. If prices
stay high (or low) for a sufficiently long time, these reallocations of capital and labour could
well be warranted and yield valuable returns, even if prices eventually revert to trend.
The trouble is that businesses, households, and policy-makers often get caught out. They
overreact and have difficulty engineering a smooth course correction once conditions
change. The inherent difficulty associated with predicting how long a boom (or bust) might
last, and how high (or low) prices might go, makes the process extremely risky. Critics worry
that a commodity-based economy will constantly find itself in motion, never quite settling
down. When this constant churning is combined with volatile price changes, the ongoing
costs and probability of a significant miscalculation can be high.
The policy-maker's Hippocratic Oath: first, do no harm
One of the most important things that policy-makers can do is to avoid making the situation
worse. Helpful lessons can be learned in this regard, by looking at Canada's experience
during the 1970s. Although every boom and bust is in some way unique, there is sufficient
commonality across commodity cycles that this period is still instructive.
Fiscal authorities in the 1970s assumed that the commodity boom would last forever, or at
least for a very long time. They believed that the elevated revenues that they were suddenly
receiving in the form of higher royalties and tax receipts would continue to grow. New,
ambitious government programs were launched, which exacerbated the dramatic economic
upturn that was already in progress, and nothing was saved for a rainy day.
Monetary authorities at the time didn't have the benefit of a policy framework anchored on an
explicit inflation target. They also underestimated the effect that the run-up in commodity
prices would have on demand conditions, and compounded the errors by overestimating the
supply potential of the economy. More specifically, they failed to appreciate the serious
negative effects that higher commodity prices - principally, energy prices - would have on
the economy's production capacity. The generalized price increases that were subsequently
observed across the economy were at first dismissed as one-off effects that would soon pass
out of the inflation numbers.
The exchange rate appreciation that was triggered by the improvement in Canada's terms of
trade over this period, and that would have helped contain inflationary pressures, was
actively resisted for fear of what it might do to other sectors of the economy and employment.
The result, when commodity prices subsequently collapsed, was a continuing spiral of rising
government deficits and double-digit inflation, both of which took many years to resolve. The
ultimate cost in terms of lost output and employment was enormous.
What can policy-makers do to improve the situation?
Now, let me turn from Canada's experiences in the 1970s to some of the broader policy
lessons that can be drawn. Policy-makers can learn from past mistakes and help to ensure
better outcomes in three important ways. First, fiscal authorities should avoid behaving in a
procyclical manner, exaggerating the boom with aggressive increases in spending and
stimulative tax reductions. Additional infrastructure may be needed to support private
investment in certain areas, but by strengthening their fiscal positions in good times,
governments can help to relieve inflationary pressures and smooth consumption. This is the
motivation for Alberta's Sustainability Fund and the Heritage Savings Trust Fund. Fiscal
strengthening can also help to relieve upward pressure on the exchange rate.
The second way in which authorities can help is by maintaining a disciplined monetary policy.
Monetary authorities must stay focused on their primary mission of preserving price stability,
helping businesses and households to see through the cycle and promoting better decision
making by keeping inflation low, stable, and predictable. This is what Canada's monetary
policy framework now provides: greater focus, greater accountability, and greater discipline.
The two key elements of our current framework are (i) an explicit monetary policy goal - the
2 per cent target for inflation - and (ii) a flexible exchange rate.
Canada's flexible exchange rate gives the Bank of Canada the monetary policy
independence that is required to successfully pursue and attain its inflation objective. The
flexible exchange rate also serves as an automatic buffer, helping to cushion the economy
and dissipate the effects of the commodity shock. Trying to resist these exchange rate
movements typically imposes even greater costs on the economy, since the underlying
pressures don't disappear, they simply manifest themselves in other ways. These take the
form of much higher wages and domestic prices in the case of a commodity price boom and,
ultimately, lower employment and output. Necessary adjustment is delayed, and leads to a
more exaggerated cycle in the overall economy.
Another important lesson that has been learned relates to the production capacity of the
economy. The Bank of Canada is now more sensitive to the negative supply effects that are
associated with large relative price movements and the economic restructuring that follows,
adjusting its estimates of potential output appropriately to avoid inadvertently overstimulating
the economy.
The third and final way that governments can help the economy to cope with commodity
cycles is through structural reform. In normal times, the Canadian economy generally
performs quite well, but it is still subject to unhelpful frictions and barriers. These affect the
resilience of the economy and its ability to weather shocks, making it difficult to reallocate
resources in a flexible, efficient manner. Canada has made good progress over the past
three decades in allowing goods and services to move more easily. Further efforts to reduce
interprovincial trade barriers would be welcome, for instance, extending the excellent Trade,
Investment and Labour Mobility Agreement (TILMA) and the New West Partnership
initiatives.
Governments, of course, are not the only ones responsible for ensuring a well-functioning
economy. They are not even the most important players. That role rests with the private
sector, which must take responsibility for its actions, looking through the boom-bust cycles
and curbing any excessive exuberance or pessimism.
How have we been doing lately?
The past few years have been extraordinary in many ways and, if nothing else, have
provided a useful check on whether the prescriptions that I have just described are being
applied. A super-cycle in commodity prices, followed by the biggest financial crisis of the
postwar period, represents a significant stress test. Fortunately, the preliminary results are
encouraging.
The 1970s and the 2000s differ in significant ways. The boom-bust experience in the 1970s
was triggered by an unprecedented supply shock and exacerbated by overly stimulative
fiscal and monetary policies. Interest rates had to be boosted to over 20 per cent in the early
1980s and combined with aggressive budget tightening in the early 1990s to bring the
macroeconomy under control. In contrast, the boom portion of the commodity cycle from
roughly 2006-2008 was the result of increased demand for commodities - much of it coming
from Asia. It was also fuelled by excessive leverage and elevated asset prices in financial
markets. Commodity prices collapsed when the asset bubble burst, and policy-makers had to
move with unprecedented speed and co-operation to deal with the fallout.
Unlike the situation in the 1970s, CPI inflation through the past five years has remained
relatively stable, despite the size of the shocks that hit the economy during the recent global
economic crisis. Inflation expectations also remained well anchored during the crisis and, as
a result, the Bank of Canada was able to ease monetary policy aggressively without losing
the confidence of private agents. The ultimate costs of the crisis in terms of unemployment
and lost output, although serious and painful, were nevertheless smaller than many had
feared.
The Bank's measure of core inflation, CPIX, proved to be an invaluable tool in this regard.
CPIX strips away eight of the most volatile components - including several commodity prices -
in the total consumer price index (CPI), giving the Bank, as well as businesses and
households, a more reliable measure of how strong or weak underlying inflation pressures
might be.
The flexible exchange rate has also been allowed to do its job over this period. Although
some of the short-term movements in the exchange rate may have been excessive, such as
the run-up to US$1.10 in November 2007, on balance Canada's flexible exchange rate has
helped to cushion the economy on the way up and on the way down - an appreciation
followed by a depreciation. Fiscal authorities at the federal and provincial levels also acted
responsibly in the years preceding the "bust" of late 2008 and early 2009, taking some of the
edge off the boom and leaving adequate fiscal headroom when extra stimulus was required.
Encouraging steps, as noted earlier, have also been made with regard to structural reforms,
although much more still needs to be done in this area.
Where are commodity prices headed now?
So, where might things be going now, as we look ahead? I'd like to end my presentation by
saying a few words about the near-term behaviour of commodity prices and the projection
that the Bank released two weeks ago as part of its April Monetary Policy Report.
Before discussing our commodity price projections, I must admit that we regularly make use
of some simplifying assumptions. Absent a more reliable guide, we typically base our
projections for many commodities on the prices embedded in futures curves.5 This is
particularly true for oil and natural gas. We realize that these curves are not a very reliable
forecasting tool. But we, and other forecasters, have yet to find a better alternative. The
curves do provide a measure of what knowledgeable agents are expecting and are willing to
put their money on. Every institution and investor that tries to anticipate commodity price
developments experiences similar challenges. Commodity prices, as noted earlier, are
inherently volatile and difficult to predict.
You might ask, then, what are the futures curves and the Bank projecting now? The Bank left
its base-case projections for commodity prices in the April Report largely unchanged from
what it had projected in the January Report. Oil and natural gas prices, as judged by the
profiles of the futures curves for these commodities, are projected to rise quite modestly over
the next three years, while non-energy prices are projected to increase by a cumulative 30
per cent. These increases are driven by the strengthening global recovery, most notably in
China and other Asian emerging-market economies (EMEs.) Indeed, most of the upward
pressure on commodity prices over the past 10 years has come from the EMEs. These
economies are expected to keep growing, barring any unforeseen shock. Does this mean
another commodity super-cycle?
It is tempting to look at recent developments and extrapolate into the future. China and India
alone account for more than 40 per cent of the world's population. If these two economies
continue to grow at annual rates of 8 to 10 per cent, as we have seen recently, they will soon
overtake even the largest advanced economies, and their prospective demand for
commodities could be enormous. Couple this with the fact that many of the world's resources
are non-renewable or are in limited supply, and you have a recipe for something that's surely
breathtaking. It's enough to make us all Malthusians.
Before we race to this conclusion, however, we need to remember the problems that have
arisen in the past when we assumed that commodity prices would rise continuously, or at
least would stabilize at a much higher level. It's always tempting to think that the next
commodity cycle will be different. Where have we heard that before? The scenario that I
have just outlined is not implausible. That is what makes it so seductive. I can't say definitely
that commodity prices won't rise to unprecedented levels, but if history is any guide,
continuous rapid upward movement in real (inflation-adjusted) prices - oil or otherwise - is
unlikely, as is a large permanent increase in the real price level. History suggests, therefore,
that we should proceed with caution and, to use a rather corny commodity cliché, not count
our chickens before they hatch.
In closing, let me mention that tomorrow, we will be releasing a new Bank of Canada
commodity price index (BCPI.) This is noteworthy because, as we've just discussed, the
price of commodities in Canada has important implications for the economy, and the
interpretation of developments in commodity markets is important to the conduct of monetary
policy. Clearly, we need the most accurate measure of movements in overall commodity
prices possible. This new BCPI, which incorporates a new methodology, will be more
accurate, representative and flexible.