The concept of efficiency — how much one can accomplish per unit of time (or per dollar, etc.) — requires a quantitative numerator as well as a denominator. It requires a metric. Therefore, it tells us nothing about results we cannot quantify or measure. When we gear our society around efficiency, we produce more and more of the measurable, while... See more
Ted Merz, who used to be the Global Head of News Product at Bloomberg, has an insightful article about how the company's founder (Mike Bloomberg) uses metrics as a management tool. One metric that is prominently displayed around the office on TV screens is the number of Bloomberg terminals sold year-to-date.