Thiers' Law
Updated 2026-08-01
INTRODUCTION
English translation pending.
CORE DEFINITION
Named after Adolphe Thiers, who observed that the assignats issued during the French Revolution were rejected in favor of metal coin. Gresham's law states that bad money drives out good, but that result depends on a legally fixed exchange rate between the two monies. Once the rate floats or inflation becomes extreme, the relationship reverses: people spend or refuse the depreciating currency and keep the stable one, so good money drives out bad. The controlling variable is not the quality of the coins but whether an enforced parity prevents the market from pricing the difference.
SCAFFOLDING EFFECT
Reduce cognitive load
- Regime check: ask whether the exchange rate is fixed or free before applying Gresham's law. - Signal building: create verifiable quality signals so good actors can earn a premium. - Parity removal: break artificial equal pricing that lets inferior goods hide behind superior ones.
Anchor fast decisions
Bad money displaces good money only while a legal parity forces both to trade at the same price, because people then hoard the better one and spend the worse. Remove the parity and the two currencies trade at different prices, so the stable one commands a premium and the weak one is refused. The reversal is driven by information and pricing, which is why verifiable quality signals flip the outcome.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Gresham's_lawverified
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