Back in the late 19th century, Italian economist Vilfredo Pareto observed that 80 percent of the land ... handful just accepted the rule as some kind of unrepealable law of nature.

Alternately referred to as the Pareto principle or the law ... that 80 percent of the effects are derived from 20 percent of the causes. Here are three different ways the 80/20 rule applies ...

Anyway, as you may know, the 80/20 rule is a principle (sometimes called the Pareto Principle) that holds that 80% of the effects come from 20% of the causes. In other words, 80 percent of your ...