I'm right back at it again. Just like I've always said, you're too cool for school. You ain't here to make no friends. I'm right back at it again. Just like I have always said, you're too cool for school. You ain't here to make no friends. So here I am, I'm right back at it again. You ain't here to make no friends.
Economic efficiency is, roughly speaking, a situation in which nothing can be improved without something else being hurt. Depending on the context, it is usually one of the following two related concepts: 1  Allocative or Pareto efficiency: any changes made to assist one person would harm another.
Definition of efficiency. The simple, often used, definition of efficiency is (doing the thing right). We need this measure for marketing activities and business processes since it helps us see when we are minimising resources or time needed to complete a process, i.e. we are keeping our costs low.