Roughly 80% of the outputs come from 20% of the inputs. This applies to many events observed in the world of economy, biology, computing, sport and many other areas.
Examples:
- Sometimes when my kitchen becomes a mess and I donβt have 20 min for a comprehensive clean-up I am doing a 2 min cleanup. It is incredible how much one can achieve in two minutes and later on the task of finishing the cleanup doesnβt seem that big.
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It means you often can identify 20% of work that will bring you 80% of outcomes. Often to get to from 80% to 100% of outcomes requires 80% of effort.
Other names: Pareto principle (see Pareto Principle on Wikipedia)