The Criteria for Something to Function as Money
Money is not an essence; it is a role performed within a system of cooperation. Something functions as money only when it satisfies a sequence of necessary conditions for reducing the cost of triadic exchange (A → B → C).
The criteria fall into three layers:
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Minimum Functional Criteria (Necessary)
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Economic Performance Criteria (Necessary and Contingent)
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Civilizational Stability Criteria (Systemic)
Each builds on the prior.
These are the non-negotiable, causal preconditions for anything to serve as money.
1.1 Divisibility
Must be decomposable into smaller, proportionate units without destroying value.
Causal role: enables trade at arbitrary scales.
Causal role: enables trade at arbitrary scales.
1.2 Portability
Must be transferable at low cost, low friction, low risk.
Causal role: permits exchange beyond face-to-face barter.
Causal role: permits exchange beyond face-to-face barter.
1.3 Durability
Must resist decay, wear, or corruption.
Causal role: preserves intertemporal accounting.
Causal role: preserves intertemporal accounting.
1.4 Recognizability
Must be easily and reliably identifiable by participants.
Causal role: reduces transaction costs and reduces fraud.
Causal role: reduces transaction costs and reduces fraud.
1.5 Non-counterfeitability
Must impose high cost on imitation or forgery.
Causal role: maintains integrity of the unit and trust in the system.
Causal role: maintains integrity of the unit and trust in the system.
1.6 Fungibility
All units must be interchangeable without distinction.
Causal role: eliminates the need to track identity or lineage of specific units.
Causal role: eliminates the need to track identity or lineage of specific units.
A thing that does not meet these six cannot function as money.
These determine whether money functions efficiently, predictably, and at scale.
2.1 Store of Value (intertemporal stability)
Must preserve purchasing power across time with tolerable variance.
Causal consequence: supports saving, capital formation, and long planning horizons.
Causal consequence: supports saving, capital formation, and long planning horizons.
2.2 Medium of Exchange (transactional efficiency)
Must be widely accepted with sufficiently low friction and low default risk.
Causal consequence: maximizes velocity without eroding trust.
Causal consequence: maximizes velocity without eroding trust.
2.3 Unit of Account (pricing logic)
Must be a stable measure against which goods can be compared.
Causal consequence: ensures commensurability across markets.
Causal consequence: ensures commensurability across markets.
2.4 Scarcity (non-arbitrary supply)
Total supply must be constrained by natural law, protocol, or political constraint.
Causal consequence: prevents inflation from political exploitation.
Causal consequence: prevents inflation from political exploitation.
2.5 Low Opportunity Cost of Holding
Holding money must not impose prohibitive loss compared to alternative stores.
Causal consequence: encourages liquidity and smooth exchange.
Causal consequence: encourages liquidity and smooth exchange.
2.6 Network Liquidity
Money must achieve a threshold of adoption where it becomes self-reinforcing.
Causal consequence: replaces bilateral trust with systemic trust.
Causal consequence: replaces bilateral trust with systemic trust.
These determine whether money can support long-term cooperative equilibria in a polity.
3.1 Governance Legibility
Rules governing issuance, redemption, and circulation must be transparent, operational, and warrantable.
Causal consequence: prevents concealed taxation and political rent-seeking.
Causal consequence: prevents concealed taxation and political rent-seeking.
3.2 Constraint Against Discretionary Debasement
Supply manipulation must be either physically impossible (gold), computationally impossible (proof-of-work), or politically impossible (constitutional constraint).
Causal consequence: preserves reciprocity across generations.
Causal consequence: preserves reciprocity across generations.
3.3 Interoperability With Legal Order
Money must be enforceable in courts and compatible with contracts and restitution.
Causal consequence: anchors money within institutional cooperation.
Causal consequence: anchors money within institutional cooperation.
3.4 Risk Insurability
Must not impose catastrophic systemic risk on holders due to issuer default or protocol failure.
Causal consequence: preserves the commons of trust.
Causal consequence: preserves the commons of trust.
3.5 Cultural Compatibility
Population must treat the money as legitimate, appropriate, and reciprocal.
Causal consequence: enables coordination without coercion.
Causal consequence: enables coordination without coercion.
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Money reduces the friction of cooperation by providing a universal intermediary measure.
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To do so, it must satisfy minimum physical/operational preconditions (divisible, portable, durable, recognizable, non-counterfeitable, fungible).
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Once those conditions are met, it must meet economic performance criteria enabling saving, exchange, and pricing.
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Once those are met, it must avoid governance failure—because money is a commons subject to political predation.
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Failure at any layer forces regression to barter, credit networks, foreign currencies, or black-market substitutes.
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Therefore, money is a function, not a substance: an instrument that minimizes conflict in exchange by providing commensurability across time, space, and persons.
Cheers
CD
Source date (UTC): 2025-11-18 17:58:42 UTC
Original post: https://x.com/i/articles/1990842114465521914
