Does the 80-20 Rule Still Make Sense?

There’s an old rule that says 80% of an outcome is created by only 20% of inputs. Called the 80/20 rule, or the Pareto Principle, it was created by the Italian economist Vilfredo Pareto more than 100 years ago in relation to the wealth distribution in Italy, stating that 20% of Italians held 80% of […]