Pareto efficient
Adjective
Meaning
Pareto efficient (comparative more Pareto efficient, superlative most Pareto efficient)
(game theory, economics) Describing a situation in which the profit of one party cannot be increased without reducing the profit of another.
Pareto-efficient (comparative more Pareto-efficient, superlative most Pareto-efficient)
Alternative spelling of Pareto efficient
Alternative names
Pareto-efficient
Synonyms
Examples
In the absence of externalities and public goods, perfectly competitive equilibria are Pareto-efficient, i.e. no improvement in the utility of a consumer is possible without a worsening of the utility of some other consumer.
By restricting attention to the set of choices that are Pareto-efficient, a designer can make tradeoffs within this set, rather than considering the full range of every parameter.
The Bolzano–Weierstrass theorem allows one to prove that if the set of allocations is compact and non-empty, then the system has a Pareto-efficient allocation.