<P> The Pareto principle ( also known as the 80 / 20 rule , the law of the vital few , or the principle of factor sparsity ) states that , for many events , roughly 80 % of the effects come from 20 % of the causes . 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 paper , `` Cours d'économie politique '' . Essentially , Pareto showed that approximately 80 % of the land in Italy was owned by 20 % of the population ; Pareto developed the principle by observing that about 20 % of the peapods in his garden contained 80 % of the peas . </P>
<P> The Pareto principle ( also known as the 80 / 20 rule , the law of the vital few , or the principle of factor sparsity ) states that , for many events , roughly 80 % of the effects come from 20 % of the causes . 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 paper , `` Cours d'économie politique '' . Essentially , Pareto showed that approximately 80 % of the land in Italy was owned by 20 % of the population ; Pareto developed the principle by observing that about 20 % of the peapods in his garden contained 80 % of the peas . </P>
where did the 80 20 rule come from
where did the 80 20 rule come from
Management consultant Joseph M. Juran
Management consultant Joseph M. Juran