The 80-20 rule is not a universal constant, as shown by contemporary economic data. In the United States during 2020, for instance, the wealthiest 20% of citizens controlled 90% of the nation's wealth, a more extreme imbalance than the 80-20 ratio predicts. This highlights that while the principle of unequal distribution holds, the specific numbers can vary significantly.

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The 80-20 rule is a principle derived from Pareto's Law of wealth distribution. It posits that the wealthiest 20% of a given population typically possesses 80% of the total wealth. Although Pareto's Law is a more general concept about unequal distribution, it is often used as a synonym for the specific 80-20 rule.

The 80-20 Rule

To cite the ebook, use The CORE Econ Team 2023 The Economy 2.0: Microeconomics Open access e-text https://core-econ.org/the-economy/.

To cite a unit, use The CORE Econ Team 2023 The Economy 2.0: Microeconomics Open access e-text https://core-econ.org/the-economy/ Unit [unit number] (url).

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