A commodity in [[economics]] is a [[goods|good]], such as food, metals or grains, which is interchangeable with similar goods, and which is available in large quantities.
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A '''commodity''' in [[economics]] is a [[goods|good]], such as [[food]], [[metal]]s or [[grain]]s, which is interchangeable with similar goods, and which is available in large quantities.
Investors can buy or sell on [[commodities exchanges]] using [[futures contracts]].
Investors can buy or sell on [[commodities exchanges]] using [[futures contracts]].
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More generally, a commodity is any good in a competitive market.
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More generally, a commodity is any good in a [[competitive]] [[market]].