The Hierarchy of Money

A simple village story explains how money becomes layered by trust, liquidity and timing. Villagers pick rare river stones as money because they’re durable and costly to obtain, which anchors supply. Trade frictions lead to debt: sellers accept promises to pay later, and interest emerges to compensate for delayed purchasing power. Entrepreneurs evolve into banks by borrowing deposits from savers and lending to borrowers, earning the spread. Banks record assets (loans, stone holdings) and liabilities (deposits), and a mismatch between illiquid loan assets and demandable deposits creates fragility. Runs wipe out small banks, force fire-sales of assets, destroy wealth, and drive consolidation. Different bankers adopt different models - custodial safekeeping, fixed withdrawal windows, or demand deposits with interest - so depositing becomes a speculative choice about liquidity risk versus return.

Banks then become payment intermediaries: paper banknotes and deposit transfers replace hauling stones, simplifying daily commerce. Interbank flows create transient creditor-debtor relations, so banks settle each other’s claims through gross settlement and fast stone-runners to avoid becoming inadvertent lenders. The result is a hierarchy of money where raw stones sit at the top and bank liabilities, notes and credit occupy lower rungs determined by how readily and safely they convert into the highest-quality money.