Timmy
white swans need love too
- Joined
- 30 September 2007
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The issue arises with capital goods, and how they are costed and imputed into final GDP. An example:
Iron ore is mined, and sold to a steelworks that turns it to steel, which is sold to a manufacturer of steel metal tools, which manufactures a machine tool, which is sold to a manufacturer [using the tool] to manufacture a component of an automobile, which sells the component to Ford.
In GDP, the calculation is as follows:
Selling price of iron ore - mining costs.
Selling price of Ford - purchase costs of iron ore.
All the intermediate transactions [with associated profits/losses] are lost to the final GDP calculation. Thus we can see immediately that the assertion of consumer purchases constitute 70%+ of the economy, is a fallacy.
duc - thanks for the detailed post with plenty of info to think through.
One thing I don't get is what you have said here, that the intermediate steps not being captured. If we take the final step in the chain (Selling price of Ford in this example) and subtract the first step in the chain (cost of iron ore), wont that capture all the intermediate steps anyway, the value added at each step will be built into price, which is passed on up the line etc.?
(Hope I explained this clearly enough?)
ps. On deflators not working under certain circumstances, bit of homework for me there to grasp this - tks again.