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The Pareto PrincipleThe Pareto principle (also known as the 80/20 rule, the law of the vital few, or the principle of factor sparsity)[1][2] states that, for many events, roughly 80% of the effects come from 20% of the causes.[3] Management consultant Joseph M. Juran suggested the principle and named it after Italian economist Vilfredo Pareto, who noted the 80/20 connection while at the University of Lausanne in 1896, as published in his first work, Cours d'économie politique. Essentially, Pareto showed that approximately 80% of the land in Italy was owned by 20% of the population.It is an axiom of business management that "80% of sales come from 20% of clients".[4] Richard Koch authored the book, The 80/20 Principle, which illustrated some practical applications of the Pareto principle in business management and life.[5] ...Distribution of world GDP, 1989[10] Quintile of population IncomeRichest 20% 82.70%Second 20% 11.75%Third 20% 2.30%Fourth 20% 1.85%Poorest 20% 1.40%... https://en.wikipedia.org/wiki/Pareto_principle
‘For to everyone who has, more will be given, and he will have abundance; but from him who does not have, even what he has will be taken away. 30