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<i>McGrawHill/Irwin</i>
<i>Money and Capital Markets, 9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
ã <sub>Tounderstandtheimportantrolesthat</sub><i><sub>interestrates</sub></i><sub>play</sub>
withintheeconomy.
ã Toexplorethemostimportantideasaboutwhatdetermines
thelevelofinterestratesandassetpriceswithinthefinancial
system.
ã <sub>Toidentifythekeyforcesthateconomistsbelievesetmarket</sub>
<i>McGrawưHill/Irwin</i>
<i>MoneyandCapitalMarkets,9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
ã <sub>Theactsofsavingandlending,andborrowingandinvesting,</sub>
aresignificantlyinfluencedbyandtiedtogetherbythe<i>interest</i>
5ư5
<i>McGrawưHill/Irwin</i>
<i>MoneyandCapitalMarkets,9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
ã <sub>Someauthoritiesrefertotherateofinterestasthe</sub><i><sub>priceof</sub></i>
<i>credit</i>.
ã Interestratessend<i>pricesignals</i>toborrowers,lender,savers,
andinvestors.
<i>McGrawưHill/Irwin</i>
<i>MoneyandCapitalMarkets,9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
ã <sub>Theinterestratehelpsguaranteethatcurrentsavingswillflow</sub>
intoinvestmenttopromoteeconomicgrowth.
ã Itallocatestheavailablesupplyofcredit,generallyproviding
loanablefundstothoseinvestmentprojectswiththehighest
expectedreturns.
ã <sub>Itbringsthesupplyofmoneyintobalancewiththepublics</sub>
5ư7
<i>McGrawưHill/Irwin</i>
<i>MoneyandCapitalMarkets,9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
ã <sub>Theinterestrateservesasanimportanttoolforgovernment</sub>
<i>McGrawưHill/Irwin</i>
<i>MoneyandCapitalMarkets,9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
ã <sub>Tohelpuncovertheserateưdeterminingforces,weassumethat</sub>
thereisonefundamentalinterestrate,knownasthe<i>pure</i>or
<i>riskưfreerateofinterest</i>,whichisacomponentofallinterest
rates.
ã <sub>Theclosestrealưworldapproximationtothispurerateof</sub>
5ư9
<i>McGrawưHill/Irwin</i>
<i>MoneyandCapitalMarkets,9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
ã <sub>The</sub><i><sub>classicaltheory</sub></i><sub>arguesthattherateofinterestis</sub>
determinedbytwoforces:
thesupplyofsavings,derivedmainlyfromhouseholds,and
thedemandforinvestmentcapital,comingmainlyfromthe
<i>McGrawưHill/Irwin</i>
<i>MoneyandCapitalMarkets,9/e</i> <i>â2006TheMcGrawưHillCompanies,Inc.,AllRightsReserved.</i>
<i>HouseholdSavings</i>
ã Currenthouseholdsavingsequalthedifferencebetween
currentincomeandcurrentconsumptionexpenditures.
ã <sub>Individuals</sub><i><sub>prefer</sub></i><sub>currentoverfutureconsumption,andthe</sub>
paymentofinterestisarewardfor<i>waiting</i>.
ã <sub>Higherinterestratesencouragethe</sub><i><sub>substitution</sub></i><sub>ofcurrent</sub>