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Commodity Money

Commodity money: paying with the good itself

Imagine a merchant accepting gold for cloth. He receives more than a promise that someone will hand over gold later: he gets the metal itself, which he can pass on or use for jewellery. This is how Commodity Money works. Yet the same material can also be a production input or stored wealth. Understanding money requires looking at how people use an item, not just at the item itself.

Commodity Money is money consisting of a commodity that also has nonmonetary uses. Here, a commodity means a tradable good such as gold or silver. Being scarce and saleable is not enough: the item must actually serve as a medium of exchange. Metal in your hand is also different from a document promising its delivery.

A goldsmith buys gold to make a ring. The merchant in our example accepts it in payment because he wants to buy other goods. The material may be identical while its role differs. Mises distinguishes this use of a commodity as money from other forms of money. Chemical composition alone therefore cannot settle the question. Nor does a gold object stored at home prove that gold commonly functions as money in that setting. [1]

The merchant may have no interest in a gold ring. He only needs to expect an easier onward exchange. Carl Menger explains why someone accepts a good they do not want to consume if it helps obtain what they really need. In our example, gold connects the sale of cloth with a later purchase of food. This illustrates indirect exchange; the actual history of monetary adoption in particular societies needs separate evidence. [2]

Gold has uses beyond payment. That does not give it permanently fixed purchasing power, meaning the ability to buy a quantity of things. Mises rejects a simplistic price supposedly fixed by the material itself. If someone says “intrinsic value”, ask what they mean. Jewellery use explains one reason people want the metal, not how much bread a merchant will offer for it today or next year. [1]

Take our simple example: a piece weighs 10 g and has a fineness of 900/1000. It therefore contains 9 g of pure metal; other components make up the rest. Fineness tells us what share of the weight is the specified metal. This calculation verifies neither authenticity nor price. LBMA, the organisation setting standards for the precious metals market, distinguishes weighing from fineness information in its wholesale-bar rules. Good Delivery is the name of the standard for these bars. Our small example does not describe its requirements; it simply separates two often-confused measurements. [3]

Transporting metal can be inconvenient. The Bank of England describes receipts for deposited gold coins and later gold-redeemable banknotes entering circulation. Instead of metal, you pass on the right to receive it: whoever accepts the receipt relies on the issuer to deliver the metal. Even with full backing, you must know the terms and rely on their fulfilment. We therefore distinguish the commodity from a claim on it. The same promised weight does not mean the same way of holding an asset. [4]

A gold standard governs the relationship between a monetary unit and gold, including convertibility rules. It is a monetary arrangement, not a name for every gold object. The Bank of England records permanently ending its banknotes’ gold convertibility in 1931. That concerns a particular institution and country, not a simultaneous end to all gold-based regimes. People could still own and trade gold without thereby restoring a gold standard. [4]

Gold cannot be produced simply by entering an amount in an account, but its available quantity is not fixed. Mining can add metal, while demand for monetary and other uses changes. The amount of goods bought with it can change too. A commodity basis alone therefore does not guarantee unchanged prices. The Bank of England notes the effects of changes in the commodity’s quantity. Knowing that a metal is scarce is not enough to assess purchasing power. [4]

Bitcoin is often compared with gold because of scarcity. Its Whitepaper, the document explaining the system’s design, describes transfers of bitcoin (BTC) and Proof of Work, computational work securing transaction history, rather than a claim to receive metal. Digital units cannot be melted into jewellery. That alone does not settle their monetary usefulness; it shows the limit of the material analogy. Anyone calling BTC Commodity Money should explain the definition being used. Mining costs alone cannot decide that classification. [5] [1]

For the clearest picture, read this entry together with Regression Theorem, Bitcoin, Fiat money, Medium of Exchange, Fiduciary Media. The reverse links also lead from Fiat money, Denationalisation of Money, Free Banking, Carl Menger.

DOC · 001Mises — Commodity Money, Credit Money, and Fiat MoneyPrimary DOC · 002Menger — The Nature and Origin of MoneyPrimary DOC · 003LBMA — Good Delivery Rules: Technical SpecificationsPrimary DOC · 004Bank of England — Money in the modern economy: an introduction (2014)Primary DOC · 005Nakamoto — Bitcoin: A Peer-to-Peer Electronic Cash SystemPrimary
Revised: Source-first · No investment advice