Commodity
In economics, a commodity is an economic good, usually a resource, that specifically has full or substantial fungibility: that is, the market treats instances of the good as equivalent or nearly so with no regard to who produced them.[1][2][3]
For other uses, see Commodity (disambiguation).
The price of a commodity good is typically determined as a function of its market as a whole: well-established physical commodities have actively traded spot and derivative markets. The wide availability of commodities typically leads to smaller profit margins and diminishes the importance of factors (such as brand name) other than price.
Most commodities are raw materials, basic resources, agricultural, or mining products, such as iron ore, sugar, or grains like rice and wheat. Commodities can also be mass-produced unspecialized products such as chemicals and computer memory. Popular commodities include crude oil, corn, and gold.
Other definitions of commodity include something useful or valued[4] and an alternative term for an economic good or service available for purchase in the market.[5] In such standard works as Alfred Marshall's Principles of Economics (1920)[6] and Léon Walras's Elements of Pure Economics ([1926] 1954)[7] 'commodity' serves as general term for an economic good or service.
Etymology[edit]
The word commodity came into use in English in the 15th century, from the French commodité, "amenity, convenience". Going further back, the French word derives from the Latin commoditas, meaning "suitability, convenience, advantage". The Latin word commodus (from which English gets other words including commodious and accommodate) meant variously "appropriate", "proper measure, time, or condition", and "advantage, benefit".
Description[edit]
Characteristics[edit]
In economics, the term commodity is used specifically for economic goods that have full or partial but substantial fungibility; that is, the market treats their instances as equivalent or nearly so with no regard to who produced them.[1] Karl Marx described this property as follows: "From the taste of wheat, it is not possible to tell who produced it, a Russian serf, a French peasant or an English capitalist."[8] Petroleum and copper are examples of commodity goods:[9] their supply and demand are a part of one universal market.
Non-commodity items such as stereo systems have many aspects of product differentiation, such as the brand, the user interface and the perceived quality. The demand for one type of stereo may be much larger than demand for another.
The price of a commodity good is typically determined as a function of its market as a whole. Well-established physical commodities have actively traded spot and derivative markets.
Commoditization[edit]
Commoditization occurs as a goods or services market loses differentiation across its supply base, often by the diffusion of the intellectual capital necessary to acquire or produce it efficiently. As such, goods that formerly carried premium margins for market participants have become commodities, such as generic pharmaceuticals and DRAM chips. An article in The New York Times cites multivitamin supplements as an example of commoditization; a 50 mg tablet of calcium is of equal value to a consumer no matter what company produces and markets it, and as such, multivitamins are now sold in bulk and are available at any supermarket with little brand differentiation.[10] Following this trend, nanomaterials are emerging from carrying premium profit margins for market participants to a status of commodification.[11]
There is a spectrum of commoditization, rather than a binary distinction of "commodity versus differentiable product". Few products have complete undifferentiability and hence fungibility; even electricity can be differentiated in the market based on its method of generation (e.g., fossil fuel, wind, solar), in markets where energy choice lets a buyer opt (and pay more) for renewable methods if desired. Many products' degree of commoditization depends on the buyer's mentality and means. For example, milk, eggs, and notebook paper are not differentiated by many customers; for them, the product is fungible and lowest price is the main decisive factor in the purchasing choice. Other customers take into consideration other factors besides price, such as environmental sustainability and animal welfare. To these customers, distinctions such as "organic versus not" or "cage free versus not" count toward differentiating brands of milk or eggs, and percentage of recycled content or Forest Stewardship Council certification count toward differentiating brands of notebook paper.
In the original and simplified sense, commodities were things of value, of uniform quality, that were produced in large quantities by many different producers; the items from each different producer were considered equivalent. On a commodity exchange, it is the underlying standard stated in the contract that defines the commodity, not any quality inherent in a specific producer's product.
Commodities exchanges include:
Markets for trading commodities can be very efficient, particularly if the division into pools matches demand segments. These markets will quickly respond to changes in supply and demand to find an equilibrium price and quantity. In addition, investors can gain passive exposure to the commodity markets through a commodity price index.
In order to diversify their investments and mitigate the risks associated with inflationary debasement of currencies, pension funds and sovereign wealth funds allocate capital to non-listed assets such as a commodities and commodity-related infrastructure.[13]
Inventory data[edit]
The inventory of commodities, with low inventories typically leading to more volatile future prices and increasing the risk of a "stockout" (inventory exhaustion). According to economist theorists, companies receive a convenience yield by holding inventories of certain commodities. Data on inventories of commodities are not available from one common source, although data is available from various sources. Inventory data on 31 commodities was used in a 2006 study on the relationship between inventories and commodity futures risk premiums.[14]