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If I am not mistaken you have to correct not by inflation but by the risk-free interest rate you can get on your money, but it really depends what question you are trying to answer.

The question I am answering is, how much money do you need to have today to have $60 in 6 years' time? You need much less than $46, because you can get at least 4.85% if you buy US treasury bonds. That is 33% over 6 years. So if you buy $40.27 in 6-year bonds today you'll have $53.50 in 6 years' time.

Now, you are right that, adjusted for inflation, that is $46 today. So, investing $40 today you can make the equivalent of $46 of today's money in 6 years.

A vivid image of what should exist acts as a surrogate for reality. Pursuit of the image then prevents pursuit of the reality -- John K. Galbraith

by Migeru (migeru at eurotrib dot com) on Thu Oct 20th, 2005 at 11:21:39 AM EST
[ Parent ]
but it really depends what question you are trying to answer

Indeed. The question I was trying to answer was: What is the real price, in 2005 dollars, predicted by the futures market? And the answer to that question must be to adjust for inflation but not for interest.

The result then is that the market really expects oil to drop (gradually) 25% in six years, not the 10% that the raw numbers imply.

by jobh (jbh@lupus.ig3.net) on Fri Oct 21st, 2005 at 05:19:46 AM EST
[ Parent ]
But the point is, to you the future oil price looks like $46 because you expect your income to increase at about the average inflation rate. To the traders it looks like $40 because that's all the money they have to have today to pay for the oil in 6 years.

It looks paradoxical to me and I don't quite know how to resolve it. Both numbers are right for what they calculate, but notice that someone said upthread that the stock market is pricing oil stocks as if the long-term price of oil were $40. Maybe there's something there.

A vivid image of what should exist acts as a surrogate for reality. Pursuit of the image then prevents pursuit of the reality -- John K. Galbraith

by Migeru (migeru at eurotrib dot com) on Fri Oct 21st, 2005 at 06:05:25 AM EST
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