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On the island of Yap, large limestone discs called fei served as currency, but they were rarely moved when ownership changed; the community simply remembered who owned which stone. One family's wealth rested on a stone that had sunk to the sea floor during transport and that no living person had seen, yet it still counted as spendable. The case shows that the physical token is incidental; what circulates is a shared record of credits and debts.
When Irish banks closed for about six months in 1970, the economy kept functioning because people wrote cheques to each other that could not be cleared. Pubs and shopkeepers, who knew their customers' creditworthiness, acted as informal clearing and credit-assessment nodes. Money turned out to be a decentralised system of personal IOUs that could run without banks, provided trust and local knowledge of who was good for their debts remained intact.
The medieval English exchequer recorded debts on notched hazel sticks split lengthwise, with the creditor holding the 'stock' and the debtor the 'foil'. Stocks were transferred to third parties as payment, so a record of sovereign debt itself functioned as money for centuries. When Parliament burned the obsolete tallies in 1834, the fire destroyed the Houses of Parliament, a vivid emblem of how thoroughly money was ledger-entry rather than metal.
Money consists of three elements: an abstract unit of value, a system of accounts that records each person's credits and debts, and the transferability of those credits to third parties. Coins and notes are only tokens that represent positions in this ledger. Something becomes money when an obligation owed to one person can be accepted in settlement by someone else.
The orthodox story, in which money emerged as a convenient commodity to overcome the double coincidence of wants in barter, has no support in historical or anthropological evidence. Credit and accounting systems predate coinage, and actual economies ran on recorded obligations long before metal tokens circulated. Treating money as a neutral 'thing' led economists to exclude banks and credit from their models, leaving them blind to financial crises.
Because money is credit denominated in a unit set by a sovereign, deciding what that unit is worth distributes gains and losses between creditors and debtors. Fixing a gold standard, pursuing tight or loose policy, or bailing out banks are therefore political choices about who bears risk, not technical discoveries of money's 'true' value. Seeing money this way turns monetary debate into a question of fairness and of who has the power to set the standard.