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MENTAL MODEL · M4639

Pareto Optimality

Pareto Optimality
BusinessHigh supportWelfare Economics
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

A state of resource allocation in which it is impossible to make any one individual better off without making at least one individual worse off. That is, there is no room for "Pareto improvement". Scaffold role: A benchmark of efficiency. It provides a standard for judging whether an economic policy or social institution is effective. However, it should be noted that Pareto optimality does not imply fairness—an extremely unequal state can also be Pareto optimal.

SCAFFOLDING EFFECT

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A benchmark of efficiency. It provides a standard for judging whether an economic policy or social institution is effective. However, it should be noted that Pareto optimality does not imply fairness—an extremely unequal state can also be Pareto optimal.

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Pareto optimality refers to a state of resource allocation in which it is impossible to make any one individual better off without making at least one individual worse off. It is a criterion of "efficiency" rather than "fairness".

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Pareto_efficiencyZH · Explicit
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