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Pareto's Law, or the 80/20 Rule in simple terms

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Pareto Principle (80/20 Rule) is a principle stating that in many areas, 20% of efforts yield 80% of results. It was formulated by Italian economist Vilfredo Pareto in the late 19th century when he noticed that 20% of people in a country owned 80% of the land. This principle was later discovered in business, education, management, and even in everyday life.
Where it is applied:
  • in business, 20% of clients bring 80% of profit
  • in learning, 20% of topics provide 80% of correct answers
  • in everyday life, we use 20% of our belongings 80% of the time
  • in time management, 20% of tasks yield 80% of results
How to apply it in practice:
  • identify the most important tasks and work on them first
  • focus on those clients or projects that provide the greatest return
  • eliminate tasks that take up a lot of time but do not yield significant results
The essence of the Pareto Principle is that most results are often achieved through a small but key portion of efforts. By finding and utilizing your "20%", you can become more effective in any area.
It is important to understand that the figures 80/20 are not exact mathematical indicators. This is not a law of physics, where the same result must always occur. In real life, the ratio can be different: 70/30, 90/10, or even 95/5. The essence is that a small portion of efforts or resources usually brings a larger portion of the result.
Therefore, the Pareto Principle should be seen as a concept that helps to look at your affairs from a different perspective. It does not dictate exact figures but rather suggests where to look for the key "20%" to increase efficiency. It is more of a way of thinking than a strict calculation.

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