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Что (кто) такое Pareto efficiency - определение
Pareto efficiency
ECONOMIC CONCEPT OF A STATE IN WHICH NO REALLOCATION OF RESOURCES CAN MAKE EVERYONE AT LEAST AS WELL OFF
Pareto optimality; Pareto efficient; Pareto optimal; Pareto optimum; Weakly Pareto Optimal; Strongly pareto optimal; Strongly Pareto Optimal; Pareto Optimality; Strongly Pareto optimal; Weakly Pareto optimal; Pareto set; Pareto Efficiency; Pareto-optimal; Pareto improvement; Efficiency (fair division); Pareto-efficient; Constrained Pareto optimal; Constrained Pareto efficiency; Pareto dominant; Pareto inefficient; Pareto dominance; Constrained pareto efficiency; Pareto-optimality; Paretian; Strong Pareto optimum; Weak Pareto optimum; Pareto optimality set; Pareto optimal set; Pareto criterion; Pareto-improvement; Pareto-improving; Pareto dominated; Skyline query; Pareto optimal outcome; Pareto-efficiency; Weak pareto optimality; Fractional pareto optimality; Pareto Criterion
Pareto efficiency or Pareto optimality is a situation where no individual or preference criterion can be made better off without making at least one individual or preference criterion worse off. The concept is named after Vilfredo Pareto (1848–1923), Italian civil engineer and economist, who used the concept in his studies of economic efficiency and income distribution.
Fractional Pareto efficiency
In economics and computer science, Fractional Pareto efficiency or Fractional Pareto optimality (fPO) is a variant of Pareto efficiency used in the setting of fair allocation of discrete objects. An allocation of objects is called discrete if each item is wholly allocated to a single agent; it is called fractional if some objects are split among two or more agents.
Ordinal Pareto efficiency
Ordinal Pareto efficiency refers to several adaptations of the concept of Pareto-efficiency to settings in which the agents only express ordinal utilities over items, but not over bundles. That is, agents rank the items from best to worst, but they do not rank the subsets of items.
