early retirement of bondsearnedearned surplusearning per shareearning powerearning processearning trendearningsearnings and comprehensive incomeearnings before interest and taxearnings before interest and taxesearnings per shareearnings reportsease of administrationeasementeconmic cooperation organizationeconometricseconomic concept of incomeeconomic entityeconomic incomeeconomic lifeeconomic obligationseconomic of scaleeconomic order quantityeconomic resourceseconomic utilityeconomicaleconomyediteffecteffect of changing priceseffective cost of debteffective interest methodeffective interest rateeffective rate of interesteffective rate of returneffective yieldeffectivenesseffectiveness measureseffectseffects of changing pricesefficiencyefficiency and economyefficiency and synergyefficient markets hypothesiselastic demandelasticityelasticity of demandelectronic data processingelectronic point of sale system