Emmanuel Tumusiime-Mutebile: The impact of oil price volatility and its
implications for the economy and for macroeconomic stability
Speech by Mr Emmanuel Tumusiime-Mutebile, Governor of the Bank of Uganda, at the Dialogue
on "The Impact of Oil Price Volatility and its Implications for the Economy and for Macroeconomic
Stability", Kampala, 25 February 2015.
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Good afternoon ladies and gentlemen,
1. Introduction
The theme of my talk will be uncertainty about the future path of oil prices and what this means for
the medium to long term future of the Ugandan economy. Uncertainty is a very important concept
in economics, in particular because it has profound implications for long term investment decisions
by the private sector. Uncertainty in respect to oil prices, and thus public revenue in oil producing
economies, also has important implications for fiscal sustainability.
In the second half of 2014 the global oil market suffered one of its largest price shocks for many
years. Inevitably, this has led economic agents to re-examine their long term forecasts for oil
prices. For example, one of the sources of economic forecasts that we use in the Bank of Uganda
had made a forecast, in March 2014, of crude oil prices at $148 per barrel in the second quarter of
2019, The same source has now revised down its forecast for the crude oil price in the same
period to $81 per barrel, a fall of 46 percent. I do not intend to offer my own opinion on the price of
oil over the long term, because it is almost impossible to make such a forecast with any
reasonable degree of confidence. The 2014 oil price shock, unexpected as it was, has forced
many analysts to question the assumptions which previously underlay their long term forecasts
and, as a result, the future path of oil prices has become much more uncertain.
The greater uncertainty about the future price of oil has prompted major oil companies to put on
hold their investments in high cost oil production projects, such as deep water drilling in the
Atlantic Ocean. Oil companies are now much less confident than they were before mid 2014 that
long term oil prices will be high enough to allow these high cost projects to be viable.
The key point that I want to emphasise is not that long term oil prices will necessarily be lower
than previously forecast, it is that the future long term path of oil prices has become much less
certain. In 10 years time, global oil prices could be above $100 per barrel, but they could also be
less than $50 per barrel. Furthermore, even estimating the probability that oil prices will be $100
per barrel, or $80 per barrel or $40 per barrel, is very difficult. This is the essence of uncertainty: it
involves risks which cannot objectively be quantified.
2. Uncertainty and investment
Important innovations to the theory of investment decisions were made by economists in the
1980s. Researchers such as Ben Bernanke, Robert Pindyck, Dani Rodrik and Ricardo Caballero
demonstrated that decisions by private sector investors to undertake irreversible investments -
that is investments with sunk costs - are very sensitive to risk and uncertainty about future prices,
costs and other variables which affect the financial viability of the investment. Faced with
uncertainty about such variables, investors have incentives to delay their irreversible investments
in order to wait for more information which will reduce that uncertainty. This is known as the option
value of waiting. The greater is the risk and uncertainty about the future path of variables which
affect the viability of an investment, the higher is the option value of waiting and the larger are the
incentives facing the investors to delay their investment.
What does this mean for Uganda? Uncertainty has implications for investment in both the oil
industry and the rest of the economy. Let me start with the oil industry.
Most of the capital investments in the oil industry are irreversible, especially those involving large
scale infrastructure such as pipelines, so the option value of waiting will be a factor influencing
investment decisions in the industry. Given the uncertainty about long term oil prices, the
probability that future oil prices will be too low to enable investments in the oil industry in Uganda
to be commercially viable over the lifetime of the projects is not zero. You may reasonably take the
view that the probability that oil prices will be too low to ensure the viability of investments is small,
but it cannot be dismissed entirely. Investors in the oil industry face a tangible risk that global oil
prices over the long term will render their investments unviable. That risk is higher today than it
was prior to the fall in global oil prices in mid 2014.
As a consequence, investors in the oil industry face incentives to delay or slow down their
investments as they wait to see how global oil prices might evolve. That does not mean that oil
companies will not invest in Uganda's oil industry, but it does mean that they will be more cautious
about committing resources to irreversible capital projects than would have been the case before
the fall in global oil prices. It is likely, therefore, that the pace of capital investment in oil production
and the associated infrastructure will be slower than had been anticipated before the global oil
price fall.
The uncertainty about the future path of oil prices will also have implications for private investment
decisions in the non oil sectors of the economy. Oil revenues expand the national income of a
country. An increase in national income raises demand for consumption and investment goods.
The demand for traded consumption and investment goods can be met through higher imports,
but the demand for non traded goods, such as most services and housing, can only be met from
domestic production. Hence to enable the economy to maintain internal balance, between supply
and demand, the structure of production within the economy must shift in favour of industries
which produce non traded goods. The larger is the increase in national income derived from oil
revenues, the greater the shift in the structure of production from the traded goods sectors to the
non traded goods sectors. To bring about this shift in the structure of the economy, there must be
capital investment in the non traded sectors, together with a reduction of investment, or even
disinvestment, in the traded goods sectors. This shift in the production structure of the economy is
facilitated by an appreciation of the real exchange rate, entailing a rise in the prices of non traded
goods relative to those of traded goods, thereby making non traded goods production more
profitable and traded goods production less so. Private investors have incentives to invest in the
non traded goods sectors because they expect demand for non traded goods to increase in the
future when the country begins to spend its oil revenue.
The global price of oil has important consequences for national income. In essence the bulk of the
national income derived from oil takes the form of public revenues, because the oil companies
themselves are foreign. Production sharing agreements in the oil industry are structured so that
most of the risk of price volatility is borne by public revenues. A fall in global oil prices translates
directly into a fall in public revenue and hence a fall in national income. Consequently, the
uncertainty about the level of future global oil prices also translates into uncertainty about the
amount of national income that will be derived from oil and hence the magnitude of any future rise
in demand for non traded goods in the Ugandan economy. With future demand being more
uncertain, private investors have incentives to delay irreversible investments in these sectors. This
will not be offset by any increase in private investment in the traded goods sectors of the
economy, because the future viability of these sectors is also uncertain. As a result, we can expect
the uncertainty about future global oil prices to have a negative impact on private investment,
which in turn will cause real economic growth rates to be lower than they would otherwise have
been.
The uncertainty about oil prices also has implications for the exchange rate. Increased national
income and expenditure as a result of the exploitation of natural resources leads to real exchange
rate appreciation. Economic agents will, therefore, expect that the exchange rate will be more
appreciated in real terms in the future, when the country begins to spend its oil revenue. If the
exchange rate is expected to appreciate in the future, it will actually start to appreciate now, as
rational investors purchase assets valued in the domestic currency. The more uncertain outlook
for oil prices has almost certainly led economic agents to revise their expectations about the path
of the real exchange rate in the long term, which in turn will affect the exchange rate now. I think
that it is very likely that this is one of the reasons why our exchange rate came under strong
pressure in the final quarter of 2014 and in January of this year.
3. Fiscal policy
Finally, I want to discuss the implications of oil price uncertainty for fiscal policy, which is crucial
for macroeconomic stability. As I have noted, most of the national income earned from oil accrues
to the Government in the form of public revenue. The Secretary to the Treasury has already
spoken on this issue so I will keep my remarks brief.
We have to be honest and recognize that it has become more likely that public revenues from oil
over the long term will be lower than we had previously expected. The uncertainty of future oil
prices will affect public revenues through two channels. First, it is possible that oil production
volumes will be lower if irreversible capital investments in the oil industry are delayed, as I
discussed earlier. Secondly, the public revenue earned from each barrel of oil pumped out of the
ground will probably be lower. The latter effect could be very significant given that the Government
bears most of the risk of price volatility. Of course oil prices could recover strongly over the long
term thereby yielding substantial revenues for the Government. But there is also a probability,
which cannot be dismissed as negligible, that oil prices will not be high enough to enable
Government to earn much revenue from oil. As a consequence, there is a huge amount of
uncertainty about the magnitude of public revenues over the long term.
Given this uncertainty, it is imperative that Government should be very cautious about incurring
expenditure commitments, the financing of which is contingent on substantial inflows of oil
revenues in the future. Such commitments could include both a large expansion of the public
wage bill and large public investment projects. If Government were to undertake such
commitments and future oil revenues are too low to fully finance them, the fiscal position would be
unsustainable; the Government would face a fiscal crisis. This is what happened in many oil
producers in the early 1980s, when the oil price fell sharply.
Fiscal sustainability is essential for macroeconomic stability. If the country were to face a fiscal
crisis, interest rates would spike, inflationary expectations would rise, the exchange rate would fall
sharply and capital would flow out of the country. In these circumstances, it would be almost
impossible for the central bank to maintain macroeconomic stability through monetary and
exchange rate policy. The message that I want to convey is that we must have a far sighted long
term fiscal policy which recognizes the inherent risks to the magnitude of future oil revenues and
ensures that fiscal sustainability will not be put at risk, even if this means adopting very cautious
spending plans in the Medium Term Expenditure Framework.
4. Conclusion
Volatility and uncertainty makes macroeconomic management more difficult. Nevertheless, the
uncertainty over future oil prices does not presage disaster for Uganda. Even if oil prices are very
low in the future and very little public revenue is earned from oil, our economy can continue to
thrive and grow if it is well managed, as it has been for the last 25 years. What would be disastrous
for our economy is if we fail to recognize the significant risks entailed in the uncertain future path of
oil prices and incur expenditure commitments which subsequently prove to be unaffordable.