View original document

The full text on this page is automatically extracted from the file linked above and may contain errors and inconsistencies.

Economic SYNOPSES
short essays and reports on the economic issues of the day
2004 ■ Number 18

A Crude Crude Oil Calculation
James B. Bullard
key macroeconomic development during 2003 and
The question is, should we expect this price level to be
2004 has been the higher price of crude oil. Analysts
sustained?
have attributed the higher price to several possible
One way to answer this is to consider the futures market
sources, including supply disruptions in key oil-producing
prices for this commodity. The December contracts for 2004
countries, demand increases from a global economy perthrough 2008 stipulate an expected future price, which we
forming better than expected, especially in Asia, and a risk
can then convert into 2004 dollars by guessing an expected
premium associated with an uncertain security environment
rate of CPI inflation in the U.S. over the life of the contract.
in the Middle East. Oil prices have a long and checkered
The University of Michigan monthly survey of household
history in U.S. and global macroeconomics, with some
expectations suggests this longer-run expected inflation rate
analysts going so far as to associate every postwar U.S. recesis currently about 3.0 percent, and we will assume it is consion with sharp increases in oil prices. In this context, it is
stant through December 2008. The diamonds in the chart
important to try to assess the impact of the present episode.
indicate the real price of crude oil expected in futures marHas the recent price behavior in this market changed signifikets according to this measure. The calculation suggests that
cantly from what it was over the previous 15 years?
the price of crude oil will return to its 1988-2002 mean
The chart shows the monthly average price of a barrel
gradually over the next several years. By this measure, the
of West Texas intermediate crude oil from 1988 through
market does not foresee a substantially higher long-run
June 2004, deflated by the U.S. consumer price index
real price of oil. ■
(CPI) to obtain the price in constant 2004 dollar
terms. The mean plus and minus two raw stanReal Oil Prices
dard deviations of these prices, calculated from
Monthly Average of Daily Data
1988-2002, are indicated in the chart. The twoOil Price, in Constant 2004 $
standard-deviation rule of thumb is one simple
60
way to separate unusually large movements
from ordinary fluctuations. Prices consistently
outside the two-standard-deviation band might
50
indicate that the market has undergone some
type of structural shift and that the inflation40
adjusted mean price might be substantially
higher in the future.
30
The chart indicates that, as a first approximation, this market displayed a constant mean price
of about $27 per barrel in 2004 dollars through
20
the period 1988 to 2002. Since 2002, the real
price has increased, recently moving outside
10
the two-standard-deviation band. This price is
higher than any observed since 1988, except for
Mean
+/– 2 Standard Deviation
Futures Prices as of June 2004
the brief period of $50-per-barrel oil during the
run-up to the first Gulf War. So even taking norNOTE: Mean and standard deviation are from 1988-2002.
mal volatility into account, today’s prices are high.
19
88
19
89
19
90
19
91
19
92
19
93
19
94
19
95
19
96
19
97
19
98
19
99
20
00
20
01
20
02
20
03
20
04
20
05
20
06
20
07
20
08

A

Views expressed do not necessarily reflect official positions of the Federal Reserve System.

research.stlouisfed.org