Pareto principle

Etymology
From, Italian economist.

Proper noun

 * 1) The principle that describes the phenomenon wherein a small percentage of a population accounts for a large proportion of a particular characteristic of that population.

Translations

 * Chinese:
 * Mandarin: 帕雷托法則
 * Czech: Paretův princip
 * Esperanto: principo de Pareto
 * Finnish:
 * Russian: при́нцип Паре́то