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Rising cost of oil 'due to speculation'
As long as oil prices continue to spiral, pundits seem destined to argue over the reasons why. Increasing demand from emerging Chinese and Indian markets is sure to be at least partly to blame, but no-one can agree on the influence of another possible cause: financial speculation.
Speculation drives up the price of a commodity beyond its natural value and can happen in several ways — for example, when investors hedge against future oil prices if they are expected to appreciate.
Now, econophysicists Didier Sornette of ETH Zurich, Switzerland, and Wei-Xing Zhou of the East China University of Science and Technology, together with Ryan Woodard of ETH Zurich, claim that speculation must have driven some of the escalation in oil prices. They have found evidence for a “bubble” — an indicator of speculation — in prices since 2003, when the cost of an oil barrel was four times lower than it is today.
Bubbles are a controversial topic in academic finance because there is no clear way to define them. However, Sornette’s group says it can pin them down by examining the precise rate of growth in prices.
In an economy without speculation, the price of commodities tends to grow by a fixed percentage every year; this is an exponential rate of growth. But when an economy is influenced by speculation, the percentage increase can grow too. This gives rise to a power-law growth or, as the researchers call it, a “super-exponential growth”.
Sornette’s group has looked at three different models to see if oil prices exhibit super-exponential growth. Each of these models is based on a “log-periodic power law”, which characterizes the super-exponential growth, and contains three main parameters: the time when the bubble is expected to end; the exponent of the power law; and a scale factor. The researchers found that all three models fitted the oil-price data well, implying that the growth has indeed been a bubble (Physica A submitted; preprint at arXiv:0806.1170v2).
Could it be that there is no financial speculation, but that the demand for oil from China and India is growing super-exponentially, like a bubble? Sornette’s group cites figures on world oil supply and demand from the International Energy Agency that suggest this cannot be the case. Sornette told physicsworld.com that he is “99% certain” speculation is influencing current oil prices.
Sornette group first came up with his theory of super-exponential growth as a symptom of economic bubbles in 1996. In 2005, they used it to predict the burst of the US housing bubble.
About the author
Jon Cartwright is a reporter for physicsworld.com
Originally posted by maximerto
I find it funny you lot in the US are making a big deal out of $6 a gallon when you don't know how much we're paying for ours. Basically we pay for our petrol over here by the liter, 4.5 liters are in a gallon. Each liter of unleaded for us is costing £1.18, with diesel over £1.30. So this works out at £5.39 per gallon. So when this is converted into the US dollar, which is 1.96 comparared to that of the british pound it works out at $2.31 per liter. Then once this is converted is comes out at $10.41. So basically we're paying almost twice what you're paying over there.
Originally posted by XcLuciFer
This is why Oil is so high!
Originally posted by schrodingers dog
reply to post by Bunch
There is a lack of understanding of how speculators work. When congress speaks of "speculators" what they are really talking about is international hedge funds like the Quantum fund and others.
"If all of the supply of oil is really being consumed at the current prices, then it does not make sense to blame those prices on financial investors who are neither supplying physical oil nor consuming physical oil"
- Severin Borenstein, director of the UC Energy Institute