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1、摘要摘要市盈率涵蓋了股票投資最主要的兩個因素:股價和收益,而且其計算簡單,是投資者在投資決策時進(jìn)行價值判斷的重要指標(biāo)之一。本文考慮到市盈率不是孤立指標(biāo),深入研究了市盈率主要的影響因素及各因素對市盈率的影響關(guān)系。本文從經(jīng)典的股票定價模型出發(fā),結(jié)合前人已有的研究結(jié)果,得到影響市盈率的10個主要因素分別為貝塔系數(shù)、主營業(yè)務(wù)收入增長率、凈資產(chǎn)收益率、流動比率、資產(chǎn)負(fù)債率、流通市值、換手率、行業(yè)市盈率、初始市盈率和股利發(fā)放率。并利用滬深300指數(shù)股為樣本,通過描述性統(tǒng)計分析,相關(guān)性分析及多元回歸分析等方法對市盈率的影響因素進(jìn)行實證研究。通過
2、從整體和行業(yè)的角度建立市盈率與其相關(guān)影響因素的回歸模型,得到一些結(jié)論:市盈率與貝塔系數(shù)、主營業(yè)務(wù)收入增長率和凈資產(chǎn)收益率大體呈負(fù)相關(guān)關(guān)系;與資產(chǎn)負(fù)債率、流動比率、換手率、行業(yè)市盈率、初始市盈率呈正相關(guān),與流通市值和股利發(fā)放率的關(guān)系不能確定。除此之外,從擬合系數(shù)和檢驗結(jié)果看,發(fā)現(xiàn)分行業(yè)建立的回歸模型都要比整體回歸模型好,說明投資者在對公司市盈率進(jìn)行預(yù)測時,深入到行業(yè)的角度的去考慮是十分必要的。關(guān)鍵詞:市盈率;影響因素;多元線性回歸-I-萬方數(shù)據(jù)AbstractAbstractP/Eratiocoversthetwomajorfact
3、orsofstockinvestment:priceandearningsthatareeasytocalculate.Soitisoneoftheimportantindicatorsofvaluejudgmentswheninvestorsmakeinvestmentdecisions.ConsideringP/EratioisnotanisolatedindicatorthispapermakesanintensivestudyofthemajorfactorsaffectingP/Eratioandtheimpactont
4、herelationshipofeachfactorwithP/Eratio.ThispapergetsthetenmainfactorsaffectingP/Eratiobyanalyzingtheclassicstockvaluationmodelandtheresultsofpreviousstudies,theyarebeta,mainoperatingincomegrowthrate,rateofreturnoncommonstockholders'equity,currentratio,debtratio,circul
5、ationmarketvalue,turnoverrate,theindustryP/Eratio,theinitialP/Eratioandthedividendpayoutratio.BasedonShanghaiandShenzhen300index,theinfluencefactorsofP/Eratiohavebeenempiricallyresearchedmakinguseofdescriptivestatistics,correlationanalysisandregressionanalysismethods.
6、AndbybuildingmultiplelinearregressionmodelofP/Eratioandtheinfluencefactorsfromtheperspectiveoftheoverallandindustry,wegetssomeconclusions:beta,mainoperatingincomegrowthrateandrateofreturnoncommonstockholders'equityarenegativelyrelatedtoP/Eratio;debtratio,currentratio,
7、turnoverrate,theindustryP/EratioandtheinitialP/EratioarepositivelycorrelatedtoP/Eratio;buttherelationshipwithcirculationmarketvalueanddividendpayoutratecannotbedetermined.Inaddition,fromthefittingcoefficientsandtestresultswefindthattheregressionmodelestablishedbyindus
8、tryisbetterthantheoverallregressionmodel,indicatethatitisimportantforinvestorstoforecasttheP/Eratiofromtheperspectiveofindus