Pareto optimality Pareto Efficiency, Pareto Improvement and Pareto Optimal Configuration Game Theory It is an important concept in economics, engineering and social sciences. Pareto optimality refers to an ideal state of resource allocation, that is, assuming an inherent group of people and distributable resources, in the change from one distribution state to another, it is impossible to make someone's situation better without making anyone worse off. In other words, it is impossible to improve the situation of some people without harming others.

This concept was named after the Italian economist Vivredo Pareto, who was the first to use this concept in his research on economic efficiency and income distribution. ?　

Pareto Optimality is also called Pareto efficiency. Pareto optimality and Pareto improvement are important concepts in game theory, and are widely used in economics, engineering and social science. ?　　

Pareto optimality refers to a state of resource allocation. Without making anyone worse off, it is impossible to make someone better off.

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Pareto improvement refers to a change that makes at least one person better without making anyone worse off.

　
On the one hand, Pareto optimality means that there is no room for Pareto improvement; On the other hand, Pareto improvement is the path and method to reach Pareto optimum. Pareto optimality is Fairness and efficiency The "ideal kingdom". ?