基金管理外文文献翻译.docx
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基金管理外文文献翻译.docx
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基金管理外文文献翻译
基金管理外文文献翻译
(含:
英文原文及中文译文)
文献出处:
英文原文
IsMoneyReally“Smart”?
NewEvidenceontheRelationBetweenMutualFundFlows,ManagerBehavior,andPerformancePersistence
RussWermers
Mutualfundreturnsstronglypersistovermulti-yearperiods—thatisthecentralfindingofthispaper.Further,consumerandfundmanagerbehaviorbothplayalargeroleinexplainingtheselongtermcontinuationpatterns—consumersinvestheavilyinlast-year’swinningfunds,andmanagersofthesewinnersinvesttheseinflowsinmomentumstockstocontinuetooutperformotherfundsforatleasttwoyearsfollowingtherankingyear.Bycontrast,managersoflosingfundsappearreluctanttoselltheirlosingstockstofinancethepurchaseofnewmomentumstocks,perhapsduetoadispositioneffect.Thus,momentumcontinuestoseparatewinningfromlosingmanagersforamuchlongerperiodthanindicatedbypriorstudies.
Evenmoresurprisingisthatpersistenceinwinningfundreturnsisnotentirelyexplainedbymomentum—wefindstrongevidencethatflow-relatedbuying,especiallyamonggrowth-orientedfunds,pushesupstockprices.Specifically,stocksthatwinningfundspurchaseinresponsetopersistentflowshavereturnsthatbeattheirsize,book-to-market,andmomentumbenchmarksbytwotothreepercentperyearoverafour-yearperiod.Cross-sectionalregressionsindicatethattheseabnormalreturnsarestronglyrelatedtofundinflows,butnottothepastperformanceofthefunds—thus,castingsomedoubtonpriorfindingsofpersistentmanagertalentinpickingstocks.Finally,atthestyle-adjustednetreturnslevel,wefindnopersistence,consistentwiththeresultsofpriorstudies.Onbalance,weconfirmthatmoneyissmartinchasingwinningmanagers,butthata“copycat”strategyofmimickingwinningfundstocktradestotakeadvantageofflow-relatedreturnsappearstobethesmarteststrategy.
Eighty-eightmillionindividualsnowholdinvestmentsinU.S.mutualfunds,withover90percentofthevalueoftheseinvestmentsbeingheldinactivelymanagedfunds.Further,activelymanagedequityfundsgainthelion’sshareofconsumerinflows—flowsofnetnewmoneytoequityfunds(inflowsminusoutflows)totalled$309billionin2000,pushingtheaggregatevalueofinvestmentsheldbythesefundstoalmost$4trillionatyear-end2000.Whilethemajorityofindividualinvestorsapparentlybelieveinthevirtuesofactivemanagementingeneral,manyappeartoholdevenstrongerbeliefsconcerningthetalentsofsubgroupsoffundmanagers—theyappeartobelievethat,amongthefieldofactivemanagers,superiormanagersexistthatcan“beatthemarket”forlongperiodsoftime.Inparticular,MorningstarandLippercompetevigorouslyfortheattentionofthesetruebelieversbyprovidingregularfundperformancerankings,whilepopularpublicationssuchasMoneyMagazineroutinelyprofile“star”mutualfundmanagers.Inaddition,investordollars,whilenotveryquicktoabandonpastlosingfunds,aggressivelychasepastwinners(see,forexample,SirriandTufano(1998)).
Arethese“performance-chasers”wastingtheirmoneyandtime,orismoney“smart”?
Severalpastpapershaveattemptedtotacklethisissue,withsomewhatdifferingresults.Forexample,GrinblattandTitman(1989a,1993)findthatsomemutualfundmanagersareabletoconsistentlyearnpositiveabnormalreturnsbeforefeesandexpenses,whileBrownandGoetzmann(1995;BG)attributepersistencetoinferiorfundsconsistentlyearningnegativeabnormalreturns.Gruber(1996)andZheng(1999)examinepersistencefromtheviewpointofconsumermoneyflowstofunds,andfindthatmoneyis“smart”—thatis,moneyflowsdisproportionatelytofundsexhibitingsuperiorfuturereturns.However,theexactsourceofthesmartmoneyeffectremainsapuzzle—doessmartmoneycapturemanagertalentor,perhaps,simplymomentuminstockreturns?
1Morerecently,Carhart(1997)examinesthepersistenceinnetreturnsofU.S.mutualfunds,controllingforthecontinuationattributabletopricedequitystyles(see,forexample,FamaandFrench(1992,1993,1996),JegadeeshandTitman(1993),DanielandTitman(1997),andMoskowitzandGrinblatt(1999)).Carhartfindslittleevidenceofsuperiorfundsthatconsistentlyoutperformtheirstylebenchmarks—specifically,Carhartfindsthatfundsinthehighestnetreturndecile(oftheCRSPmutualfunddatabase)duringoneyearbeatfundsinthelowestdecilebyabout3.5percentduringthefollowingyear,almostallduetotheone-yearmomentumeffectdocumentedbyJegadeeshandTitman(1993)andtotheunexplainedpoorperformanceoffundsinthelowestprior-yearreturndecile.2Thus,Carhart(1997)suggeststhatmoneyisnotverysmart.RecentstudiesfindsomewhatmorepromisingresultsthanCarhart(1997).Chen,Jegadeesh,andWermers(1999)findthatstocksmostactivelypurchasedbyfundsbeatthosemostactivelysoldbyovertwopercentperyear,whileBollenandBusse(2002)findevidenceofpersistenceinquarterlyfundperformance.Wermers(2000)findsthat,althoughtheaveragestyle-adjustednetreturnoftheaveragemutualfundisnegative(consistentwithCarhart’sstudy),high-turnoverfundsexhibitanetreturnthatissignificantlyhigherthanlow-turnoverfunds.Inaddition,thesehighturnoverfundspickstockswellenoughtocovertheircosts,evenadjustingforstyle-basedreturns.Thisfindingsuggeststhatfundmanagerswhotrademorefrequentlyhavepersistentstockpickingtalents.Allofthesepapersprovideamorefavorableviewoftheaverageactivelymanagedfundthanpriorresearch,althoughnonefocusonthepersistenceissuewithportfolioholdingsdata.Thisstudyexaminesthemutualfundpersistenceissueusingbothportfolioholdingsandnetreturnsdata,allowingamorecompleteanalysisoftheissuethanpaststudies.Withthesedata,wedevelopmeasuresthatallowustoexaminetherolesofconsumerinflowsandfundmanagerbehaviorinthepersistenceoffundperformance.Specifically,wedecomposethereturnsandcostsofeachmutualfundintothatattributableto
(1)managerskillsinpickingstockshavingreturnsthatbeattheirstyle-basedbenchmarks(selectivity),
(2)returnsthatareattributabletothecharacteristics(orstyle)ofstockholdings,(3)tradingcosts,(4)expenses,and(5)coststhatareassociatedwiththedailyliquidityofferedbyfundstotheinvestingpublic(asdocumentedbyEdelen(1999)).Further,weconstructholdings-basedmeasuresofmomentum-investingbehaviorbythefundmanagers.Together,thesemeasuresallowanexaminationoftherelationbetweenflows,managerbehavior,andperformancepersistence.
Inrelatedwork,SirriandTufano(1998)findthatconsumerflowsreactaboutasstronglytoone-yearlaggednetreturnsastoanyotherfundcharacteristic.Inaddition,themodelofLynchandMusto(2002)predictsthatperformancerepeatsamongwinners(butnotlosers),whilethemodelofBerkandGreen(2002)predictsnopersistence(orweakpersistence)asconsumerflowscompeteawayanymanagerialtalent.ConsistentwithSirriandTufano(1998),andtotestthecompetingviewpointsofLynchandMusto(2002)andBerkandGreen(2002),wesortfundsontheirone-yearlaggednetreturnsformosttestsinthispaper.Whileotherwaysofsortingfundsareattempted.
Data
Wemergetwomajormutualfunddatabasesforouranalysisofmutualfundperformance.DetailsontheprocessofmergingthesedatabasesisavailableinWermers(2000).ThefirstdatabasecontainsquarterlyportfolioholdingsforallU.S.equitymutualfundsexistingatanytimebetweenJanuary1,1975andDecember31,1994;thesedatawerepurchasedfromThomson/CDAofRockville,Maryland.TheCDAdatasetliststheequityportionofeachfund’sholdings(i.e.,theshareholdingsofeachstockheldbythatfund)alongwithalistingofthetotalnetassetsundermanagementandtheself-declaredinvestmentobjectiveatthebeginningofeachcalendarquarter.CDAbegancollectinginvestment-objectiveinformationonJune30,1980;wesupplementthesedatawithhand-collectedinvestmentobjectivedatafromJanuary1,1975.
ThesecondmutualfunddatabaseisavailablefromtheCenterforResearchinSecurityPrices(CRSP)andisusedbyCarhart(1997).TheCRSPdatabasecontainsmonthlydataonnetreturns,aswellasannualdataonportfolioturnoverandexpenseratiosforallmutualfundsexistingatanytimebetweenJanuary1,1962andDecember31,2000.FurtherdetailsontheCRSPmutualfunddatabaseareavailablefromCRSP.
Thesetwodatabasesweremergedtoprovideacompleterecordofthestockholdingsofagivenfund,alongwiththefund’sturnover,expenseratio,netreturns,investmentobjective,andtotalnetassetsundermanagementduringtheentiretimethatthefundexistedduringourtheperiodof1975to1994(inclusive).5Finally,stockpricesandreturnswereobtainedfromtheCRSPstockfiles.
Performance-DecompositionMethodologyInthisstudy,weuseseveralmeasuresthatquantifytheabilityofamutualfundmanagertochoosestocks,aswellastogeneratesuperiorperformanceatthenetreturnlevel.Thesemeasures,ingeneral,decomposethereturnofthestocksheldbyamutualfundintoseveralcomponentsinordertobothbenchmarkthestockportfolioandtoprovideaperformanceattributionforthefund.Themeasuresusedtodecomposefundreturnsinclude:
1.theportfolio-weightedreturnonstockscurrentlyheldbythefund,inexcessofreturns(duringthesametimeperiod)onmatchedcontrolportfolioshavingthesamestylecharacteristics(selectivity)
2.theportfolio-weightedreturnoncontrolportfolioshavingthesamecharacteristicsasstockscurrentlyheldbythefund,inexcessoftime-seriesaveragereturnsonthosecontrolportfolio
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