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Chapter4:
AllocatingResources OverTimeObjectiveExplaintheconceptofcompoundinganddiscountingandtoprovideexamplesofreallifeapplications1Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallNote:ThisslideshowdoesnotfollowthebookascloselyasshowsfortheotherchaptersStudentsgettingtimevalueofmoneyforthefirsttimeneedtodoubleortripleexposuretothisbasicskillTherearemanyexamplesattheendofthiscollectionorganizedintosubsectionsstartingatslide95of2632Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallIntroduction:TimeValueofMoney(TVM)
$20todayisworthmorethantheexpectationof$20tomorrowbecause:abankwouldpayinterestonthe$20 inflationmakestomorrows$20lessvaluablethantoday’suncertaintyofreceivingtomorrow’s$203Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.1CompoundingAssumethattheinterestrateis10%p.a.Whatthismeansisthatifyouinvest$1foroneyear,youhavebeenpromised$1*(1+10/100)or$1.10nextyearInvesting$1foryetanotheryearpromisestoproduce1.10*(1+10/100)or$1.21in2-years4Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallValueofInvesting$1Continuinginthismanneryouwillfindthatthefollowingamountswillbeearned:5Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallValueof$5InvestedMoregenerally,withaninvestmentof$5at10%weobtain6Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallGeneralizingthemethodGeneralizingthemethodrequiressomedefinitions.LetibetheinterestratenbethelifeofthelumpsuminvestmentPVbethepresentvalueFVbethefuturevalue7Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallFutureValueandCompoundInterest8Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallFutureValueofaLumpSum9Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallExample:FutureValueofaLumpSumYourbankoffersaCDwithaninterestrateof3%fora5yearinvestment.Youwishtoinvest$1,500for5years,howmuchwillyourinvestmentbeworth?10Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall
RULEOF72
Thisrulesaysthatthenumberofyearsittakesforasumofmoneytodoubleinvalue(“thedoublingtime”)isapproximatelyequaltothenumber72dividedbytheinterestrateexpressedinpercentperyearDoublingTime= 72
InterestRate11Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallHint:Roundingiscommonsense“plus”traditionItsimportanttoroundappropriatelyIna$7billionsproject,roundingmightbetothenearest$’000,000Yourcheckbookshouldberoundedto$0.01Inanaccountingsituation,anyunexpectederror,howeversmallcouldbetheresultoftwolargercompensatingerrors.Accordingly,theyneedtoberesolvedAvoidanytruncationwithinacalculation12Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallHint:AvoidanytruncationwithinacalculationEngineersstudynumericalanalysis.Infact,itissoimportant,theymaytakeseveralcourses.Fewfinancefolkhaveanyideaofcomputationaldangers.FornowyoushouldbesafeifyouAvoidremovingintermediateresultsfromyourcalculator.Storetheminamemoryregister.ThisavoidsinputandoutputcopyingerrorsLearntousethe“stack”orbracketsprovidedbyyourfinancialcalculator.YourcalculatorprobablykeepsamoreaccurateversionofdisplayednumbersinternallyInnocaseshouldyouevertruncateanintermediatecomputationunlessyoufullyunderstandtheaffectonaccuracy(Youprobablydon’t!)13Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallPresentValueofaLumpSum14Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallExample:PresentValueofaLumpSumYouhavebeenoffered$40,000foryourprintingbusiness,payablein2years.Giventherisk,yourequireareturnof8%.Whatisthepresentvalueoftheoffer?15Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallLumpSumsFormulaeYouhavesolvedapresentvalueandafuturevalueofalumpsum.Thereremainstwoothervariablesthatmaybesolvedforinterest,inumberofperiods,n16Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallSolvingLumpSumCashFlowforInterestRate17Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallExample:InterestRateonaLumpSumInvestmentIfyouinvest$15,000fortenyears,youreceive$30,000.Whatisyourannualreturn?18Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallReviewofLogarithmsThenextthreeslidesareaquickreviewoflogarithmsIknowthatyouprobablylearnedthisineighthgrade,butthoseofuswhodonotusethemfrequentlyforgetthebasicrules19Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallLogarithmsareimportantinfinancebecausegrowthisrelatedtothetheexponential,andtheexponentialistheinversefunctionofthelogarithmLogarithmsmayhavedifferentbases,butinfinanceweneedonlythenaturallogarithm,thatisthelogarithmofbasee.Theeistheirrationalnumberthatmaybeapproximatedas2.718281828.Itiseasytorememberbecauseitstartstorepeat,butdon’tbefooled,itdoesn't,anditis
irrational20Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallReviewofLogarithmsThebasicpropertiesoflogarithmsthatareusedbyfinanceare:21Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallReviewofLogarithmsThefollowingpropertiesareeasytoprovefromthelastones,andareusefulinfinance22Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallSolvingLumpSumCashFlowforNumberofPeriods23Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.2TheFrequencyofCompoundingYouhaveacreditcardthatcarriesarateofinterestof18%peryearcompoundedmonthly.Whatistheinterestratecompoundedannually?Thatis,ifyouborrowed$1withthecard,whatwouldyouoweattheendofayear?24Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompounding18%peryearcompoundedmonthlyisjustcodefor18%/12=1.5%permonthAllcalculationmustbeexpressedintermsofconsistentunitsArawrateofinterestexpressedintermsofyearsandmonthsmayneverbeusedinacalculation25Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingTheannualratecompoundedmonthlyiscodeforonetwelfthofthestatedratepermonthcompoundedmonthlyTheyearisthemacroperiod,andthemonthisthemicroperiodInthiscasethereare12microperiodsinonemacroperiod26Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingWhenarateisexpressedintermsofamacroperiodcompoundedwithadifferentmicroperiod,thenitisanominalorannualpercentagerate(APR)Ifmacroperiod=microperiodthentherateisreferredtoasatherealoreffectiveratebasedonthatperiod27Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingAssumemmicroperiodsinamicroperiodandanominalratekpermacroperiodcompoundedmicro-periodically.Thatistheeffectiverateisk/mpermicroperiod.Invest$1foronemacroperiodtoobtain$1*(1+k/n)n,producinganeffectiverateoverthemacroperiodof($1*(1+k/n)n-$1)/$1=(1+k/n)n-128Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallCreditCardIfthecreditcardpaysanAPRof18%peryearcompoundedmonthly.The(real)monthlyrateis18%/12=1.5%sotherealannualrateis(1+0.015)12-1=19.56%ThetwoequalAPRwithdifferentfrequencyofcompoundinghavedifferenteffectiveannualrates:29Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallEffectiveAnnualRatesofanAPRof18%30Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingNotethatasthefrequencyofcompoundingincreases,sodoestheannualeffectiverateWhatoccursasthefrequencyofcompoundingrisestoinfinity?31Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingTheeffectiveannualratethat’sequivalenttoanannualpercentagerateof18%isthene0.18-1=19.72%Moreprecisionshowsthatmovingfromdailycompoundingtocontinuouscompoundinggains0.53ofonebasispoint32Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingAbankdeterminesthatitneedsaneffectiverateof12%oncarloanstomediumriskborrowersWhatannualpercentageratesmayitoffer?33Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompounding34Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompounding35Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingManylendersandborrowersdonothaveaclearunderstandingofAPRs,butinstitutionallendersandborrowersdoInstitutionsarethereforeabletoextractafewbasispointsfromconsumers,butwhybother?36Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheFrequencyofCompoundingFinancialintermediariesprofitfromdifferencesinthelendingandborrowingrates.Overheads,badloansandcompetitionresultsinanarrowmargin.SmallrategainsthereforeresultinalargeincreasesininstitutionalprofitsInthelongterm,ill-informedconsumerslosebecauseofcompounding37Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.5MultipleCashFlowsTimeLinesFutureValueofaStreamofCashFlowPresentValueofaStreamofCashFlowsInvestingwithMultipleCashFlows38Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTimeLine39Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallPresentValueofMultipleCashFlows40Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.6AnnuitiesFinancialanalystsuseseveralannuitieswithdifferingassumptionsaboutthefirstpayment.Wewillexaminejusttwo:regularannuitywithitsfirstcoupononeperiodfromnow,(detaillook)annuityduewithitsfirstcoupontoday,(cursorylook)41Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallCashFlowDiagramofAnnuities42Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallRationaleforAnnuityFormulaasequenceofequallyspacedidenticalcashflowsisacommonoccurrence,soautomationpaysoffatypicalannuityisamortgagewhichmayhave360monthlypayments,alotofworkforusingelementarymethods43Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallAssumptionsRegularAnnuitythefirstcashflowwilloccurexactlyoneperiodformnowallsubsequentcashflowsareseparatedbyexactlyoneperiodallperiodsareofequallengththetermstructureofinterestisflatallcashflowshavethesame(nominal)valuethepresentvalueofasumofpresentvaluesisthesumofthepresentvalues44Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallAnnuityFormulaNotationPV=thepresentvalueoftheannuityi=interestratetobeearnedoverthelifeoftheannuityn=thenumberofpaymentspmt=theperiodicpayment45Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallDerivationofPVofAnnuityFormula:Algebra.1of546Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallDerivationofPVofAnnuityFormula:Algebra.2of547Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallDerivationofPVofAnnuityFormula:Algebra.3of548Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallDerivationofPVofAnnuityFormula:Algebra.4of549Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallDerivationofPVofAnnuityFormula:Algebra.5of550Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallPVofAnnuityFormula51Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallPVAnnuityFormula:Payment52Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallPVAnnuityFormula:NumberofPayments53Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallPVAnnuityFormula:ReturnThereisnotranscendentalsolutiontothePVofanannuityequationintermsoftheinterestrate.StudentsinterestedinthereasonwhyarereferredtoGaloisTheory,2nd.EdI.Stewart.Studentswithastrongersenseoffashionare“seen”carryingMichioKuga’spoison-ivy-green-coloredbook“GaloisDream.”54Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallAnnuityFormula:PVAnnuityDue55Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallDerivationofFVofAnnuityFormula:Algebra56Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallFVAnnuityFormula:Payment57Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallFVAnnuityFormula:NumberofPayments58Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallFVAnnuityFormula:ReturnThereisnotranscendentalsolutionNumericalmethodshavetobeemployed59Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.7PerpetualAnnuitiesRecalltheannuityformula:Letn->infinitywithi>0:60Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallGrowingAnnuitiesGrowingannuitiessolvethesuper-normalgrowthproblemTheyareoftenmoreappropriateinday-to-daysituationsthanannuities61Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.8LoanAmortization:Mortgageearlyrepaymentpermittedatanytimeduringmortgage’s360monthlypaymentsmarketinterestratesmayfluctuate,buttheloan’srateisaconstant1/2%permonththemortgagerequires10%equityand“threepoints”assumea$500,000houseprice62Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallMortgage:ThepaymentWewillexaminethisproblemusingafinancialcalculatorThefirstquantitytodetermineistheamountoftheloanandthepoints63Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallCalculatorSolutionThisisthemonthlyrepayment64Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallMortgage:EarlyRepaymentAssumethatthefamilyplanstosellthehouseafterexactly60payments,whatwillbetheoutstandingprinciple?65Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallMortgageRepayment:IssuesTheoutstandingprincipleisthepresentvalue(atrepaymentdate)oftheremainingpaymentsonthemortgageThereareinthiscase360-60=300remainingpayments,startingwiththeone1-monthfromnow66Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallCalculatorSolutionOutstanding@60Months67Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallSummaryofPaymentsThefamilyhasmade60payments=$2687.98*12*5=$161,878.64Theirmortgagerepayment= 450,000-418,744.61=$31,255.39Interest=payments-principlereduction=161,878.64-31,255.39=$130,623.2568Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallAvoidAddingCashFlowsFromDifferentPeriodsIntheaboveslide,webrokeoneofthecardinalrulesoffinance:Webundledthecashflowsfor5-yearsbyaddingthemtogetherThiskindofanalysiscanleadtoinappropriatefinancialdecisions,suchasearlyrepaymentofamortgage69Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallAResultofBreakingtheRuleGiventhetaxadvantagesofamortgage,andthefactitcollateralized,theirinterestratesarequitelowSomefinancialpunditsrecommendadding(say10%)tomonthlypaymentstoreducethemortgagelifeby5-to10-yearsAtyourage,investingthatextra10%inamutualfundmaybemoreappropriate70Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallAResultofBreakingtheRuleThepunditsmaketheirargumentbyadding(withoutdiscounting!)thedifferenceinthecashflowsbetweenthescenarios.Thisistypicallyahugesumofmoney,andthisiswhatis“saved”Whendiscountedappropriately,therearenosignificantsavings.Therearehugeopportunitylossesforthosewillingtoaccepttheriskofastockmutualfund71Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallOutstandingBalanceasaFunctionofTimeThefollowinggraphsillustratethatintheearlyyears,monthlypaymentaremostlyinterest.Inlatteryears,thepaymentsaremostlyprincipleRecallthatonlytheinterestportionistax-deductible,sothetaxshelterdecays72Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall73Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall74Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall75Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall76Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.9ExchangeRatesandTimeValueofMoney
Youareconsideringthechoice:Investing$10,000indollar-denominatedbondsoffering10%/yearInvesting$10,000inyen-denominatedbondsoffering3%/yearAssumeanexchangerateof0.0177Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall$10,000$11,000¥1,000,000¥1,030,000¥Time10%$/$(direct)0.01$/¥3%¥/¥?$/¥U.S.A.Japan78Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallExchangeRateDiagramReviewofthediagramindicatesthatyouwillendtheyearwitheither$11,000or¥1,030,000Ifthe$priceoftheyenrisesby8%/yearthentheyear-endexchangeratewillbe$0.0108/¥79Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall$10,000$11,124$11,000¥1,000,000¥1,030,000¥Time10%$/$(direct)0.01$/¥3%¥/¥0.0108$/¥U.S.A.Japan80Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallInterpretationandAnotherScenarioInthecaseofthe$priceof¥risingby8%yougain$124onyourinvestmentNow,ifthe$priceof¥risesby6%,theexchangerateinoneyearwillbe$0.010681Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall$10,000$10,918¥$11,000¥1,000,000¥1,030,000¥Time10%$/$(direct)0.01$/¥3%¥/¥0.0106$/¥U.S.A.Japan82Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallInterpretationInthiscase,youwilllose$82byinvestingintheJapanesebondIfyoudivideproceedsoftheUSinvestmentbythoseoftheJapaneseinvestment,youobtaintheexchangerateatwhichyouareindifferent$11,000/¥1,030,000=0.1068$/¥83Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall$10,000$11,000¥$11,000¥1,000,000¥1,030,000¥Time10%$/$(direct)0.01$/¥3%¥/¥0.01068$/¥U.S.A.Japan84Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallConclusionIftheyenpriceactuallyrisesbymorethan6.8%duringthecomingyearthentheyenbondisabetterinvestment85Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallFinancialDecisioninanInternationalContextInternationalcurrencyinvestorsborrowandlendinTheirowncurrencyThecurrencyofcountrieswithwhichtheydobusinessbutwishtohedgeCurrenciesthatappeartoofferabetterdealExchangeratefluctuationscanresultinunexpectedgainsandlosses86Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallComputingNPVinDifferentCurrenciesInanytime-value-of-moneycalculation,thecashflowsandinterestratesmustbedenominatedinthesamecurrencyUSAprojectUrequiresaninvestmentof$10,000,asdoesaJapaneseprojectJ.Ugenerates$6,000/yearfor5years,andprojectJgenerates¥575,000/yearfor5yearsTheUSinterestis6%,theJapaneseinterestis4%,andthecurrentexchangerateis0.0187Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallSolutionUsingyourfinancialcalculatorDeterminethepresentvalueofUin$bydiscountingthe5paymentsat6%,andsubtracttheinitialinvestmentof$10,000DeterminethepresentvalueofJin¥bydiscountingthe5paymentsat4%,andsubtracttheinitialinvestmentof¥1,000,000Obtain$15,274&¥1,5599,798respectively88Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallSolutionConvertthe¥1,5599,798to$usingthecurrentexchangeratetoobtain$15,600TheJapaneseNPVof¥of$15,600ishigherthantheUSANPVor$15,274,soinvestintheJapaneseproject89Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.10InflationandDiscountedCashFlowAnalysisWewillusethenotationIntherateofinterestinnominaltermsIrtherateofinterestinrealtermsRtherateofinflationFromchapter2wehavetherelationship90Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallIllustrationWhatistherealrateofinterestifthenominalrateis8%andinflationis5%?TherealrateorreturndeterminesthespendingpowerofyoursavingsThenominalvalueofyourwealthisonlyasimportantasitspurchasingpower91Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallInvestinginInflation-protectedCD’sYouhavedecidedtoinvest$10,000forthenext12-months.YouareofferedtwochoicesAnominalCDpayinga8%returnArealCDpaying3%+inflationrateIfyouanticipatetheinflationbeingBelow5%investinthenominalsecurityAbove5%investintherealsecurityEqualto5%investineither92Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallWhyDebtorsGainFromUnanticipatedInflation
Youborrow$10,000at8%interest.Thetoday’sspendingpoweroftherepaymentis$10,000*1.08/(1+inflation)Iftheactualinflationistheexpected6%,thentherealcostoftheloanintoday’smoneyis$10,188.68Iftheactualinflationis10%,thentheloan’srealcost(intoday’svalues)is$9,818.18Unexpectedinflationbenefitsborrower93Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallInflationandPresentValue
AcommonplanningsituationisdetermininghowlongittakestosaveforsomethingTheproblemisthatthethingbeingsavedforincreasesin(nominal)priceduetoinflationUsingarealapproachsolvesthisissue94Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallInflationandPresentValue
IllustrationAssumethataboatcosts$20,000todayGeneralinflationisexpectedtobe3%Attoday’svalues,youcansaveataninflationadjustedrateof$3,000/year,makingthefirstdeposit1-yearhenceYouareabletoearn12%loansatHonestJoe’sPawnEmporium
®Whenistheboatyours?95Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallBoatIllustrationContinuedSolutionTheboatisalreadyatnominalvalueToconvertthenominalratetotherealrateIreal=(Inominal-inflation)/(1+inflation)=(0.12-0.03)/1.03=8.7378641%UsingyourcalculatorN->?;I->8.7378641;PV->0;PMT->3000;FV->20000“=/-”;Result:n=5.48years,(6yearsw/change)96Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallBoatIllustrationContinuedConclusionGivenboatermakesdepositsattheendofeachyear,theboatwillnotbehersforsixyearsLookattheproblemfromanominalvantage:97Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallBoatIllustration(Nominal)98Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallInflationandSavingsPlansWehaveseenhowtocomputethenumberofyearsittakestosaveforsomethingusingbothrealandnominalmethodsAnotherimportantquestionisHowmuchmustIsaveeachyearinordertoachieveasavingsgoal?Wewillreusetheboatproblem,butwiththeassumptionthattheboateriswillingtowait8-years,butwishestominimizeannual(inflationadjusted)payments99Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall4.11TaxesandInvestmentDecisionsRule:Investsoastomaximizeyourafter-taxrateofreturnThisisnotatallthesamethingas Minimizethetaxyoupay(False)100Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallInvestinginTax-ExemptBondsIntheUSA,municipalbondsareexemptfromincometaxesUnderwhatcircumstanceswouldyoubeindifferenttoinvestinginanidenticalbondthatpaystaxifyourmarginalrateoftaxis(say)20%?101Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallAdditionalSolvedProblemsLumpSumFutureValue102Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallTheProblemYou'vereceiveda$40,000legalsettlement.Yourgreat-unclerecommendsinvestingitforretirementin27-yearsby“rollingover”one-yearcertificatesofdeposit(CDs)Yourlocalbankhas3%1-yearCDsHowmuchwillyourinvestmentbeworth?Comment.103Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallCategorizationYourcapitalgainswillbereinvested.Thereisnocash-flowfromthesettlementfor27years,sothisisalumpsumproblem.Thereissomeuncertaintyinthecashflowsbecauseinterestratearestaticforjustthefirstyear,butweassumethatitwillbe3%untilyouretireIfyouareunabletoshelteryourearnings,theIRSwillwanttheircut104Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallDataExtractionPV=$40,000i=3%(or3%*(1-marginaltaxrate)?)n=27-yearsFV=?105Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallSolutionbyEquation106Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallCalculatorSolution107Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHallCommentsYourgreatuncle'safinancialidiotGivena27-yearinvestment,youshouldeitherInvestthemoneymoreaggressivelytoaccumulatethemoneyyouneedtosurvive,orLive!Blowthemoneyonthatredconvertible!108Copyright©2009PearsonEducation,Inc.
PublishingasPrenticeHall3AdditionalSolvedProblemsLumpSumInterest
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