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Pareto efficiency or Pareto optimality is a situation that cannot be modified so as to make any one individual or preference criterion better off without making at least one individual or preference criterion worse off. The concept is named after Vilfredo Pareto (1848–1923), Italian engineer and economist, who used the concept in his studies of economic efficiency and income distribution. The following three concepts are closely related:

Pareto efficiency or Pareto optimality is a situation that cannot be modified so as to make any one individual or preference criterion better off without making at least one individual or preference criterion worse off. The concept is named after Vilfredo Pareto (1848–1923), Italian engineer and economist, who used the concept in his studies of economic efficiency and income distribution. The following three concepts are closely related:

'''<font color="#ff8000">帕累托效率 Pareto efficiency</font> '''或'''<font color="#ff8000">帕累托最优 Pareto optimality </font>'''是一种不能再改进的状态，它使得任何个体或偏好准则变得更好而不使任意一个个体或一项偏好准则变得更差。这个概念是以意大利工程师、经济学家[[维尔弗雷多·帕累托]]（1848-1923）的名字命名的。他在研究'''<font color="#ff8000">经济效率 economic efficiency</font>'''和'''<font color="#ff8000">收入分配 income distribution</font>'''时使用了这个概念。以下三个概念密切相关：

'''<font color="#ff8000">帕累托效率 Pareto efficiency</font> '''或'''<font color="#ff8000">帕累托最优 Pareto optimality </font>'''是一种不能再改进的状态，它使得任何个体或偏好准则变得更好而不使任意一个个体或一项偏好准则变得更差。这个概念是以意大利工程师、经济学家维尔弗雷多·帕累托 Vilfredo Pareto（1848-1923）的名字命名的。他在研究'''<font color="#ff8000">经济效率 economic efficiency</font>'''和'''<font color="#ff8000">收入分配 income distribution</font>'''时使用了这个概念。以下三个概念密切相关：

   --[[用户:趣木木|趣木木]]（[[用户讨论:趣木木|讨论]]）专有名词与疑难句 后面需要附上英文

   --[[用户:趣木木|趣木木]]（[[用户讨论:趣木木|讨论]]）专有名词与疑难句 后面需要附上英文