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外文资料及中文译文
作者姓名***
专业财务管理
指导教师姓名***
专业技术职务副教授
外文资料
FIVEWAYSTOIMPROVERETURNONEQUITY
TheDuPontModel:ABriefHistory
Theuseoffinancialratiosbyfinancialanalysts,lenders,academicresearchers,and
smallbusinessownershasbeenwidelyacknowlegedintheliterature.(See,for
example,OsteryoungConstand(1992),DevineSeaton(1995),orBurson(1998)
TheconceptsofReturnonAssets(ROAhereafter)andReturnonEquity
(ROEhereafter)areimportantforunderstandingtheprofitabilityofabusiness
enterprise.Specifically,a“returnon”ratioillustratestherelationshipbetween
profitsandtheinvestmentneededtogeneratethoseprofits.However,theseconcepts
areoften“toofarremovedfromnormalactivities”tobeeasilyunderstoodanduseful
tomanymanagersorsmallbusinessowners.(SlaterandOlson,1996)
In1918,fouryearsafterhewashiredbytheDuPontCorporationtoworkinits
treasurydepartment,electricalengineerF.DonaldsonBrownwasgiventhetaskof
untanglingthefinancesofacompanyofwhichDuPonthadjustpurchased23percent
ofitsstock.(ThiscompanywasGeneralMotors!)Brownrecognizeda
mathematicalrelationshipthatexistedbetweentwocommonlycomputedratios,
namelynetprofitmargin(obviouslyaprofitabilitymeasure)andtotalassetturnover
(anefficiencymeasure),andROA.Theproductofthenetprofitmarginandtotal
assetturnoverequalsROA,andthiswastheoriginalDuPontmodel,asillustratedin
Equation1below.
Eq.1:(netincome
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