Pecuniary Externality
Updated 2026-08-01
INTRODUCTION
English translation pending.
CORE DEFINITION
A pecuniary externality is an effect transmitted through prices rather than through any physical or contractual channel. When a new competitor lowers prices, existing firms lose revenue and their suppliers lose business; when a large employer arrives, local rents rise. Economists distinguish this from a technological externality such as pollution, because prices merely redistribute gains and losses while the price system is working as intended. The key qualifier is that pecuniary effects are generally not a case for intervention or compensation.
SCAFFOLDING EFFECT
Reduce cognitive load
- Harm sorting: Separate losses caused by competition, which need no remedy, from losses caused by infringement, which do. - Policy brake: Notice when a call for compensation is really a request to protect an incumbent. - Efficiency test: Ask whether the price change reflects a reallocation toward higher-value use.
Anchor fast decisions
Prices coordinate resources by moving them toward their highest-valued use. When a firm loses customers to a cheaper or better competitor, the loss is the visible side of that reallocation: resources are being released for better use elsewhere. Because the loss arises from the price signal itself rather than from a missing market or an uncompensated cost, treating it as a market failure would stop the reallocation and preserve the less efficient arrangement.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
account_treeGenealogyexpand_more
menu_bookReferencesexpand_more
Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Pecuniary_externalityverified
PRIVATE NOTES · Only visible to you
SAVED Q&A
ENTRY Q&A · Private saving available
Ask with a clear boundary
thinkingmodels answers from published entry context only.
Your question is sent to thinkingmodels. The answer uses public entry context only.
RELATED MODELS