Vilfredo Pareto

Italian economist and sociologist (1848-1923)

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Lived 1848–1923, aged 75France

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Era
1848–1923
Aged 75

Summary

Updated 2026-06-08

An Italian engineer who noticed that 80% of Italy's wealth sat with 20% of its people — and turned that asymmetry into a universal principle now wielded everywhere from business strategy to software bugs.

Biography

About

Vilfredo Federico Damaso Pareto was born Wilfried Fritz Pareto on 15 July 1848, trained in physics and mathematics, and worked across civil engineering, economics, sociology, political science, and philosophy. He made his mark studying income distribution and individual choice, helping build the Lausanne School of economics and introducing the concept of Pareto efficiency to microeconomics. He was the first to observe that income follows a power law — a Pareto distribution — drawn from his finding that roughly 80% of Italian wealth concentrated in about 20% of the population, the insight that…

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In their own words

Sourced, dated quotes from Vilfredo Pareto

Vilfredo Pareto

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History is a graveyard of aristocracies.

— The Rise and Fall of Elites

Vilfredo Pareto

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The assertion that men are objectively equal is so absurd that it does not even merit being refuted.

— p. 90.

Vilfredo Pareto

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It is a known fact that almost all revolutions have been the work, not of the common people, but of the aristocracy, and especially of the decayed part of the aristocracy.

— p. 92.

Vilfredo Pareto

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