Pareto efficiency
Let an agent explain Pareto efficiency by definition, conditions, examples and limits, including that it says nothing about fairness.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain Pareto efficiency by definition, conditions, examples and limits, including that it says nothing about fairness.
A state of resource allocation in which no individual can be made better off without making at least one other individual worse off; the set of such allocations forms the Pareto frontier.
What it is for: Evaluating allocations in economics, engineering and multi-objective optimisation.
It can be test whether an allocation is Pareto efficient; find the Pareto frontier; explain Pareto improvements; discuss equity separately.
Distinguishing features
No one better off without someone worse off
Many efficient allocations exist
Silent on fairness
Used in multi-objective optimisation
What it looks like
Not physical; shown as frontiers on graphs.
How it is recognised
Pareto frontier curves
Pareto improvements
Pareto principle (80/20) is a different idea
Related models
is a kind of - category
is used in - fields
is contrasted with - fairness
is confused with - different concept
In practice
Families and kinds
Pareto improvement
Pareto optimality
Pareto frontier
weak and strong Pareto efficiency
Failure modes and hazards
Treating efficiency as fairness
Confusing with the 80/20 rule
Ignoring assumptions of models
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Concept Definition.
Definition is precise.
Test
Is it efficient.
Test
Efficiency test.
- Can anyone be made better off without harming someone else? boundary
- Under which assumptions? definition
Improvement
Pareto improvement.
Improvement
Pareto improvement.
- Is this change a Pareto improvement? boundary
- Who gains and who loses? definition
Frontier Trade-offs.
Frontiers show trade-offs.
Find
Computation.
Find
Frontier computation.
- How is the Pareto frontier found for these objectives? action
- Which algorithm is used? definition
Choose
Selecting a point.
Choose
Selection.
- How should a point on the frontier be chosen? definition
- Which values guide the choice? boundary
Limits What it does not say.
Efficiency is not fairness.
Equity
Fairness.
Equity
Equity.
- Is the allocation fair as well as efficient? boundary
- Which fairness criterion is used? definition
Assumptions
Models.
Assumptions
Assumptions.
- Which model assumptions does the conclusion rely on? definition
- Do they hold here? boundary
Senses Disambiguation.
Pareto has several ideas.
Principle
80/20 rule.
Principle
Pareto principle.
- Is the 80/20 Pareto principle meant instead? boundary
- Which entry fits? action
Teaching
Examples.
Teaching
Teaching.
- Which simple example illustrates Pareto efficiency? action
- What misconceptions are common? boundary
What the second pass must settle
- Should frontier concepts be separate entries?
- How should optimisation uses be linked?
- How should the 80/20 principle be split off?