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Commodity pricing theory mainly focuses on the transference of a "risk premia" from
risk-adverse hedgers to speculators. This insurance-like context was first
proposed by Keynes (1930) in his theory of normal backwardation. Essentially,
Keynes believed that hedgers have to pay speculators a risk premium to convince
them to accept their risk.
Dr. Richard Spurgin (2000) explained it in the following way. There are four
types of participants in futures markets: short hedgers, long hedgers, speculators
and arbitrageurs. Short hedgers are commercial producers and long hedgers are
commercial consumers.
Arbitrageurs perform a special function, and exist to ensure consistent pricing
across different types of instruments relating to a particular asset and its
relationships (e.g., cash, futures, forwards, options, etc.).
[Note: A discussion of commodity pricing theory as it relates to price convergence
between the futures and spot price is a technical topic and overly complicates
the purpose of this article. Suffice it to say that the futures-spot convergence
is the principal objective that validates the futures markets' economic purpose.]
Speculators, on the other hand, are assumed to "hold the difference between
the long hedger, short hedger and arbitrageur positions." Accordingly, speculators
are key to ensuring the futures markets operate smoothly, as shall be illuminated
by Dr. Spurgin's "hedging response function."
The hedging response model is intuitive and serves as a good basis for understanding
the functionality of the commodity futures market, as well as for formulating
legislation and regulations that promote the economic purpose of these markets
without hindering innovation or normal speculative activities.
According to Dr. Spurgin's hedging response function, there are four asymmetric
scenarios which theoretically produce excess return to speculators, and two
symmetric scenarios which are zero-sum:
(A) a rise in commodity price (beneficial to producers) generates more initiative
from producer short hedgers to lock in higher prices, hence a net short hedging
position is established;
(B) a rise in commodity price (detrimental to consumers) causes consumers
to be more concerned about guarding against margin pressure than producers
are concerned about locking in higher prices, hence a net long hedging position
is established;
(C) a drop in commodity price (beneficial to consumers) generates more initiative
from consumer long hedgers to lock in lower costs, hence a net long hedging
position is established;
(D) a drop in commodity price (detrimental to producers) causes producers
to be more concerned about guarding against margin pressure than consumers
are concerned about locking in lower costs, hence a net short hedging position
is established; and
(E) a symmetric response results when the transaction is 'speculator versus
speculator,' or (F) a 'long hedger versus short hedger.' Theoretically, the
majority of futures transactions result in a symmetric response, and therefore
it is the "net" hedging response that is of most interest.
In accordance with Dr. Spurgin's hedging response model, speculators fulfill
an economic purpose by plugging the asymmetrical difference between
a net long or net short hedging response. This is the reason why speculators
provide an economically important role in the functionality of these markets.
Anecdotally, "Scenario B" seems to be the current predominant "hedging response
function" in the oil markets. If that is the case, then the question is, who
are the "long hedgers" that are reflexively reacting or producing higher prices?
There is evidence to suggest that a major constituency in this regard is the
financial "investors" seeking to hedge inflationary expectations vis-à-vis
commodity index funds. Another key constituency according to various news media
accounts has been international governments who are ensuring they have sufficient
stockpiles of a particular commodity (e.g., strategic oil reserves). This is
in addition to traditional commercial long hedgers who can add to upside price
pressure, as well as speculators engaged in "trend-following" strategies.
However, the lynchpin is that if the hedging response is "Scenario
B," then on a net basis it is speculators who are actually the main sellers
of futures contracts versus long hedgers.
Speculators who are short (i.e., selling futures) are betting against the
bullish trend on the speculation that prices will drop. But in order to be
enticed to do so, they must be paid an excess premium for making such a bet,
resulting in upward price pressure. That is the likely reason why we have been
seeing oil prices consistently rise.
If one agrees with this analysis as well as the viability of Dr. Spurgin's
model to provide insight into the workings of the futures markets, then the
next logical question is whether the categorization of various constituencies
accurately reflects a bona fide hedger or more accurately speculators.
For example, should index funds continue to be categorized as a commercial,
or re-categorized as either a non-commercial, or a separate category? The euphemism
amongst veteran futures traders is that index funds represent "dumb money," and
that nobody wants "to get run over by a stampede of cattle." Yet, an argument
can also be made that long-bias index funds provide a "hedge" against inflation.
On the other hand, the term "bona fide hedger" implies a commercial that is
capable of making or taking spot delivery.
There is an additional scenario referred to as a "market squeeze" which Dr.
Spurgin does not discuss in his paper on the hedging response function. For
example, commercial short hedgers who initially entered positions at a lower
price by selling futures under "Scenario A," get caught in a "short squeeze" whereby
increasing upward pressure forces "short covering" (i.e., buying).
This particular scenario often causes spikes in volatility, similar to what
we experienced during February and March of this year in the wheat contract.
Again, however, it was speculators who ultimately provide the liquidity which
allowed these market participants to exit their positions.
Accordingly, we can arrive at the following conclusion...
It would be reckless and irresponsible for the U.S. Government to force regulators
to raise margin requirements under current market conditions, specifically
with respect to the oil markets.
In April 2008, U.S. Sen. Byron Dorgan, a North Dakota Democrat, told Congress, "There
is an orgy of speculation in futures markets. This is a 24-hour casino with
unbelievable speculation." He and others in Congress have been raising the
idea of changing margin requirements that traders must pay up front in order
to engage in oil speculation. Dorgan said stock speculation requires a 50%
margin, but commodities like oil demand a much lower threshold, just 5% or
7%.
According to Senator Dorgan's and other Congressional members' analysis/opinion/rhetoric,
excessive speculation is driving prices up, not fundamental demand-supply factors.
If this is the case, then increasing margin should theoretically bring about
an exodus of speculators from the futures market, causing oil prices to come
back down.
But as our analysis reveals using Dr. Spurgin's model, the oil market currently
indicates that there is a net hedging response where long hedgers are willing
to pay short speculators excess premia to enter into a contract. As Michael
Masters posited, the predominant long hedgers may very well be the commodity
index funds. Yet it should also be noted that these same index funds will not
be materially impacted by an increase in margin because they are fully-funded.
Hence, while the hedging response function may or may not be causing the market
to steadily rise, it is prudent to err on the side of caution. If our thesis
is correct, then raising margin requirements will result in a disastrous short
covering rally.
At $135 a barrel per oil, we are beginning to see indications of demand destruction.
It may in fact be the case that threats from Congress are already having a
detrimental impact on the oil markets.
Governments and regulators should beware... the law of unintended consequences
rules the market!
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