CFA三级培训项目：经典题_行为金融学（Behavioral Finance）_打印版.docx

11S,(TheBehavioralFinancePerspectiveCase:MimiFongMimiFong,CFA,aprivatewealthmanagerwithanassetmanagementfirm,hasbeenaskedtomakeapresentationtohercolleaguescomparingtraditionalandbehavioralfinance.Shedecidestoenlivenherpresentationwithstatementsfromcolleaguesandclients.Thesestatementsareintendedtodemonstratesomekeyaspectsofanddifferencesbetweentraditionalandbehavioralfinance.Statement1(fromacolleague):"Whennewinformationonacompanybecomesavailable,Iadjustmyexpectationsforthatcompany'sstockbasedonpastexperienceswithsimilarinformation/1(fromaclient):"Whenconsideringinvestments,Ihavealwayslikedusinglongoptionpositions.Iliketheirrisk/returntradeoffs.Mypersonalestimatesoftheprobabilityofgainsseemtobehigherthanthatimpliedbythemarketprices.Iamnotsurehowtoexplainthat,buttomelongoptionsprovidetremendousupsidepotentialwithlittlerisk,giventhelowprobabilityoflimitedlosses."(fromaclient):"Ihavealwaysfollowedabudgetandhavebeenadisciplinedsaverfordecades.EveninhardtimeswhenIhadtoreducemyusualdiscretionaryspending,Ialwaysmanagedtosave."HCase:MimiFongStatement4(fromacolleague):"WhileItrytomakedecisionsanalytically,Idobelievethemarketscanbedrivenbytheemotionsofothers.SoIhavefrequentlyusedbuy/sellsignalswheninvesting.Also,my20yearsofexperiencewithmanagerswhoactivelytradeonsuchinformationmakesmethinktheyareworththefeestheycharge.,zStatement5(fromacolleague):,Mostofmyclientsneedawell-informedadvisortoanalyzeinvestmentchoicesandtoeducatethemontheiropportunities.Theyprefertobepresentedwiththreetosixviablestrategiestoachievetheirgoals.Theyliketobeabletomatchtheirgoalswithspecificinvestmentallocationsorlayersoftheirportfolio."Case:MimiFongStatement6(fromaclient):"Ifollowadisciplinedapproachtoinvesting.Whenastockhasappreciatedby15percent,Isellit.Also,Isellastockwhenitspricehasdeclinedby25percentfrommyinitialpurchaseprice."Statement7(fromaclient):wOveraII,Ihavealwaysbeenwillingtotakeasmallchanceoflosingupto8percentoftheportfolioannually.Icanacceptanyassetclassestomeetmyfinancialgoalsifthisconstraintisconsidered.Inotherwords,anacceptableportfoliowillsatisfythefollowingcondition:Expectedreturn-1.645Expectedstandarddeviation-8%."WhichofthefollowingstatementsismostconsistentwithexpectedCase:MimiFongSSolution:CStatement3ismostconsistentwithexpectedutilitytheory.Theclientexhibitsself-controlandisabletodeferconsumption.Thisclientisconsideringshort-termandlong-termgoalsandattemptingtomaximizethepresentvalueofutility.InStatement1,beliefsarebeingupdatedusingheuristicsratherthanBayes,formula.Statement2isconsistentwithprospecttheory;theclientisoverweightingtheprobabilityofahighfinancialimpactoutcome(gainsonoptions)andunderweightingtheprobabilityofaloss(theoptionpremiumcost).Case:MimiFongWhichofthefollowingstatementsmostlikelyindicatesabeliefthattechnicalanomaliesexistinthecapitalmarkets?Solution:BStatement4indicatesthebeliefthatbuy/sellsignalscanbeusedtoearnexcessreturns.Statement4indicatesthatmarketscanbeinfluencedbytheemotionsofothers(sentiment).Thisisconsistentwithabehavioralapproachtoassetpricingthatincludessentimentsuchasthebehavioralstochasticdiscountfactor-basedassetpricingmodelproposedbyShefrin.Case:MimiFongSB.boundedrationality.C.mentalaccountingbias.Case:MimiFong3Solution:CTheclientsdiscussedinStatement5exhibitmentalaccountingbiasbecausetheyconsidertheirportfoliobymatchingitslayerstogoals.Theclientsmaynothavetimethemselvestoexaminetheinvestmentuniverseandarriveatoptimalsolutions,buttheyrelyontheiradvisertodothisforthem.Thus,theydonotexhibitboundedrationality.TheclientofStatement6ismostlikelybehavingconsistentlywith:A.prospecttheory.B.expectedutilitytheory.C.behavioralportfoliotheory.TheclientofStatement6isbehavingconsistentlywithbehavioralportfoliotheory.Theclientsellsandholdsastocknotbecauseofthestock,spotential,butratherfromafearofthestockdeclininginvalueandgainsdissipatingandanaversiontorealizinglosses.Loss-aversioninprospecttheoryisdiscussedfromadifferentperspective.Case:MimiFongSTheclientofStatement7wouldmostlikelyagreewithwhichofthefollowingStatements?cfafrmcpacmavideofweixin:804283381A.Istriveforamean-varianceefficientportfolio.B.Iconstructmyportfolioinlayerstomeetmygoals.C.Iamloss-averseandhaveavaluefunctionthatissteeperforlossesthangains.Case:MimiFong3Solution:ATheclientisexpressingaportfoliogoalthatconsidersexpectedreturnandstandarddeviation.Thisisconsistentwithtraditionalfinanceandtheclientislikelytopreferamean-varianceefficientportfolio.Thereisnothinginthestatementthatindicatesloss-aversionasopposedtorisk-aversionorapreferenceforconstructingaportfolioinlayers.TheBehavioralBiasesofIndividualsHCase:TiffanyJordanTiffanyJordanisahedgefundmanagerwithahistoryofoutstandingperformance.Forthepast10years,Jordan,sfundhasusedanequitymarketneutralstrategy(long/shortstrategythatstrivestoeliminatemarketrisk;i.e.1betashouldbezero)whichhasprovedtobeeffectiveasaresultofJordan'shardwork.Anequitymarketneutr