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1、對外經(jīng)濟貿(mào)易大學碩士學位論文開放式基金規(guī)模與業(yè)績相關(guān)性的實證研究姓名:董浩申請學位級別:碩士專業(yè):金融學指導教師:張紅地201105摘要本文應(yīng)用多種研究方法對積極管理型的丌放式股票基金的業(yè)績與規(guī)模之間的關(guān)系進行了分析,并結(jié)合理論和現(xiàn)實市場環(huán)境對實證研究的結(jié)論進行解釋。本文首先把116支樣本基金按照其凈值規(guī)模由小到大每月等分為五組,構(gòu)造五個規(guī)模不同的基金組合,對其從2006年1月到2009年2月的月度收益數(shù)據(jù)使用市場收益、CAPM模型以及Fama-French三因子模型作為業(yè)績基準對基金收益進行調(diào)整,發(fā)現(xiàn)基金業(yè)績與規(guī)模之間整體呈有偏的倒U型分布。接下來為控制其他因素對
2、基金業(yè)績的影響,加入基金公司規(guī)模、上期收益、上期申購贖回凈值等等可能影響基金收益的因素,使用Fama—Macbeth方法對67支基金樣本的季度和月度收益進行回歸分析,初步得到基金公司規(guī)模與收益之間的正相關(guān)關(guān)系。進一步的,本文使用面板數(shù)據(jù),應(yīng)用單向個體固定效應(yīng)回歸模型對24支基金2007-2008年的季度和月度數(shù)據(jù)進行分析,發(fā)現(xiàn)以市場收益調(diào)整和CAPM模型作為業(yè)績基準時,基金規(guī)模與基金業(yè)績存在顯著線性『F相關(guān)關(guān)系,但以三因子模型為業(yè)績基準時,正相關(guān)關(guān)系不顯著,但可以部分的被基金風格漂移所解釋。關(guān)鍵詞:風險調(diào)整業(yè)績,基金規(guī)模,F(xiàn)ama-Macbeth回歸,固定效應(yīng)模型A
3、bstractThearticleadoptedmultiplemethodstoanalyzeandexplaintherelationshipbetweenfundsizeanditsperformanceafteraccountingforvariousperformancebenchmarks.Atfirst,wedividedthe16samplefundsinto5sizequintilesandcalculatedtheirloadingsofCAPMmodelandFama-French3factorsmodelusingdatafromJan.20
4、04toFeb.2009.TheresultrevealedtheinvertedUshaperelationshipbetweensizeandriskadjustedperformanceifwedisregardotherfundcharacteristics.Wethenaddedsomevariablessuchasthesizeoffundmanagementfirm,returnoflastperiod,fundflowoflastperiodetc.tocontrolfactorsthatpotentiallyinfluencefundperform
5、ancewhiletheymayjustcorrelatedwithfundsize.UsingFama-Macbethapproachtoperformtheregressionanalysisofthe67samplefunds,wecannotmakefindsolidrelationshipbetweenfundsizeandperformance.Tofurtherexploretherelationship,weadoptedpaneldataandemployedthefixed—effectsmodeltoinvestigateintheseason
6、alandmonthlydataduring2007.2008of24samplefunds.Theregressionresultshowsapositivelinearrelationshipbetween如ndsizeandCAPMmodeladjustedperformanceandtherelationshipiSnotstatisticallysignificantunderFama—French3factorsmodeladjustedreturns.However,thedifferencebetweenthesemodelsCanbeexplain
7、edbythetransformationoftheinvestmentstyles..‘Atlast,weexploreanumberofpotentialexplanationsforthisrelationship.Thepositivesideoffundsizeincludestransactioncost,naturalselectioneffectandherdinstinct.ThenweconductsomefurtherinvestigationintotheliquidityproblemandtheeffectofSMBandHMLfac