and with A + B = 1, inequality measures like the Gini index (G) and the Hoover index (H) can be computed. In this case both are the same. See also 1% rule 10/90 gap Benford's law Diminishing returns Elephant flow Keystone species Long tail Matthew effect Mathematical economics Megadiverse countries Ninety–ninety rule Pareto distribution Pareto priority index Parkinson's law Peter principle Power law Price's law Principle of least effort Profit risk Rank–size distribution Regression toward the mean Sturgeon's law Vitality curve Wealth concentration Zipf's law Microtransaction whale References Further reading . External links Pareto Principle: Rule of causes and consequences ParetoRule.cf : Pareto Rule ParetoRule.cf : The Pareto Rule About.com: Pareto's Principle Wealth Condensation in Pareto Macro-Economies The Pareto Principle: Accomplishing goals with purpose Statistical laws Rules of thumb Tails of probability distributions Statistical principles Adages Vilfredo Pareto