NCDEX, says that if buyers could insist on taking actual delivery of the commodity, it would make it harder for speculators to manipulate prices in search of a cash profit.

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But no actual trading of the physical commodity needs to take place.

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We use the vast majority of our arable land to grow corn and soy commodity crops instead of actual food.

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Determining the actual marginal cost of production is somewhat tricky since the commodity is priced globally in dollars, but the bottom lines for South African mining companies are ultimately determined by the price they receive in South African rand, with their expenses also paid in rand.

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Relative to actual annual consumptive usage, there is already a greater inventory of gold than there is of any other commodity.

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