Netlog 帕累托最优的经典案例，帕雷托最优（英语：Pareto optimality），或帕雷托最适，也称为帕雷托效率（英语：Pareto efficiency），是经济学中的重要概念，并且在博弈论、工程学和社会科学中有着广泛的应用。与其密切相关的另一个概念是帕雷托改善。

帕雷托最优是指资源分配的一种理想状态。给定固有的一群人和可分配的资源，如果从一种分配状态到另一种状态的变化中，在没有使任何人境况变坏的前提下，使得至少一个人变得更好，这就是帕雷托改善。帕雷托最优的状态就是不可能再有更多的帕雷托改善的状态；换句话说，不可能在不使任何其他人受损的情况下再改善某些人的境况。(Netlog classic case of Pareto optimality, Pareto optimal (English: Pareto optimality), the most suitable or Pareto, also known as Pareto efficiency (English: Pareto efficiency), is an important concept in economics, and game theory, engineering and social sciences have been widely used. Another concept that is closely related to it is Pareto's improvement.



Pareto optimality refers to an ideal state of resource allocation. Given the inherent group of people and the resources that can be allocated, if one changes from one distribution state to another, without making any situation worse, it will make at least one person better, which is Pareto improvement. Pareto's best state is that there can be no more improvement of Pareto's condition. In other words, it is impossible to improve someone's condition without damaging anyone else.)