Commodity market may include interest rates, environmental instruments, swaps, or freight contracts. Source: International Trade Centre Energy commodities include crude oil particularly West Texas Intermediate (WTI) crude oil and Brent crude oil, natural gas, heating oil, ethanol and purified terephthalic acid. Hedging is a common practice for these commodities. For many years, West Texas Intermediate (WTI) crude oil, a light, sweet crude oil, was the world’s most-traded commodity. WTI is a grade used as a benchmark in oil pricing. It is the underlying commodity of Chicago Mercantile Exchange's oil futures contracts. WTI is often referenced in news reports on oil prices, alongside
Value (economics) amount of exertion that anyone will render in exchange for it. But as men always seek to gratify their desires with the least exertion this is the lowest amount for which a similar thing can otherwise be obtained." In another classical tradition, Marx distinguished between the "value in use" (use-value, what a commodity provides to its buyer), labor cost which he calls "value" (the socially-necessary labour time it embodies), and "exchange value" (how much labor-time the sale of the commodity can claim, Smith's "labor commanded" value). By most interpretations of his labor theory of value, Marx, like Ricardo, developed a