cffm6 ch 05 slides
TRANSCRIPT
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Time Value of Money
Chapter 5
Future Value
Present Value
Annuities Rates of Return
Amortization
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Time Lines
Show the timing of cash ows.
Tick marks occur at the end of periods soTime ! is toda"# Time $ is the end of the %rstperiod &"ear month etc.' or the (eginning ofthe second period.
)F! )F$ )F*)F+
! $ + *,-
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rawing Time Lines
5-3
$!! $!!$!!
! $ + *,-
* "ear /$!! ordinar"
annuit"
$!!
! $ +,-
/$!! lump sum due in + "ears
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rawing Time Lines
5-4
$!! 0!10
! $ + *,-
20!
3ne4en cash ow stream
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5hat is the future 4alue &FV' of an initial/$!! after * "ears if ,67R 8 $!-9
Finding the FV of a cash ow or series ofcash ows is called compounding.
FV can (e sol4ed (" using the step2("2
step %nancial calculator andspreadsheet methods.
FV 8 9
! $ + *
$!-
$!!
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Sol4ing for FV:The Step2("2Step and Formula ;ethods
After $ "ear:
FV$ 8 PV&$ < ,' 8 /$!!&$.$!' 8 /$$!.!!
After + "ears:
FV+ 8 PV&$ < ,'+ 8 /$!!&$.$!'+8 /$+$.!!
After * "ears:
FV* 8 PV&$ < ,'* 8 /$!!&$.$!'*8 /$**.$!
After = "ears &general case':FV= 8 PV&$ < ,'=
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Sol4ing for FV:The )alculator ;ethod
Sol4es the general FV e>uation.
Re>uires ? inputs into calculator and willsol4e for the %fth. &Set to P67R 8 $ and
@= mode.'
5-7
INPUT
!UTPUT
N I"#$ PMTPV %V
3 1& &
133'1&
-1&&
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5hat is the present 4alue &PV' of /$!!due in * "ears if ,67R 8 $!-9
Finding the PV of a cash ow or series ofcash ows is called discounting &there4erse of compounding'.
The PV shows the 4alue of cash ows interms of toda"s purchasing power.
PV 8 9 $!!
! $ + *
$!-
5-(
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Sol4ing for PV:The Formula ;ethod
Sol4e the general FV e>uation for PV:
PV 8 FV=6&$ < ,'=
PV 8 FV*6&$ < ,'*
8 /$!!6&$.$!'*
8 /10.$*
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Sol4ing for PV:The )alculator ;ethod
Sol4es the general FV e>uation for PV.
@Bactl" like sol4ing for FV eBcept weha4e diCerent input information and are
sol4ing for a diCerent 4aria(le.
5-1&
INPUT
!UTPUT
N I"#$ PMTPV %V
3 1& & 1&&
-75'13
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Sol4ing for ,: 5hat interest rate wouldcause /$!! to grow to /$+0.D1 in *"ears9
Sol4es the general FV e>uation for ,.
Eard to sol4e without a %nancialcalculator or spreadsheet.
5-11
INPUT
!UTPUT
N I"#$ PMTPV %V
3
(
& 125')7-1&&
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Sol4ing for =: ,f sales grow at +!- per"ear how long (efore sales dou(le9
Sol4es the general FV e>uation for =.
Eard to sol4e without a %nancialcalculator or spreadsheet.
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INPUT
!UTPUT
N I"#$ PMTPV %V
3'(
2& & 2-1
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5hat is the diCerence (etween anordinar" annuit" and an annuit" due9
5-13
rdinar" Annuit"
P;T P;TP;T
! $ + *,-
P;T P;T
! $ + *,-
P;T
Annuit" ue
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Sol4ing for FV:*27ear rdinar" Annuit" of /$!! at $!-
/$!! pa"ments occur at the end ofeach period (ut there is no PV.
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INPUT
!UTPUT
N I"#$ PMTPV %V
3 1& -1&&
331
&
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Sol4ing for PV:*2"ear rdinar" Annuit" of /$!! at $!-
/$!! pa"ments still occur at the end ofeach period (ut now there is no FV.
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INPUT
!UTPUT
N I"#$ PMTPV %V
3 1& 1&& &
-24('6)
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Sol4ing for FV:*27ear Annuit" ue of /$!! at $!-
=ow /$!! pa"ments occur at the (eginningof each period.
FVAdue8 FVAord&$ < ,' 8 /**$&$.$!' 8 /*G?.$!
Alternati4el" set calculator to HI@J,=Kmode and sol4e for the FV of the annuit":
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INPUT
!UTPUT
N I"#$ PMTPV %V
3 1& -1&&
364'1&
&
*+,IN
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Sol4ing for PV:*27ear Annuit" ue of /$!! at $!-
Again /$!! pa"ments occur at the (eginningof each period.
PVAdue8 PVAord&$ < ,' 8 /+?.GD&$.$!' 8 /+1*.00
Alternati4el" set calculator to HI@J,=K modeand sol4e for the PV of the annuit":
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INPUT
!UTPUT
N I"#$ PMTPV %V
3 1& 1&& &
-273'55
*+,IN
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5hat is the present 4alue of a 02"ear/$!! ordinar" annuit" at $!-9
Ie sure "our %nancial calculator is set(ack to @= mode and sol4e for PV:
= 8 0 ,67R 8 $! P;T 8 2$!! FV 8 !.
PV 8 /*1D.!.
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5hat if it were a $!2"ear annuit"9 A+02"ear annuit"9 A perpetuit"9
$!2"ear annuit"
= 8 $! ,67R 8 $! P;T 8 2$!! FV 8 !#sol4e for PV 8 /G$?.?G.
+02"ear annuit"
= 8 +0 ,67R 8 $! P;T 8 2$!! FV 8 !#sol4e for PV 8 /D!1.1!.
Perpetuit" PV 8 P;T6, 8 /$!!6!.$ 8 /$!!!.
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The Power of )ompound,nterest
A +!2"ear2old student wants to sa4e /* ada" for her retirement. @4er" da" sheplaces /* in a drawer. At the end of the
"ear she in4ests the accumulated sa4ings&/$!D0' in a (rokerage account with aneBpected annual return of $+-.
Eow much mone" will she ha4e when sheis G0 "ears old9
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Sol4ing for FV: ,f she (egins sa4ingtoda" how much will she ha4e when sheis G09
,f she sticks to her plan she will ha4e/$?1+G$.D when she is G0.
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INPUT
!UTPUT
N I"#$ PMTPV %V
45 12 -1&)5
14(7262
&
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Sol4ing for FV: ,f "ou dont start sa4inguntil "ou are ?! "ears old how much will"ou ha4e at G09
,f a ?!2"ear2old in4estor (egins sa4ingtoda" and sticks to the plan he or shewill ha4e /$?G!!!.0D at age G0. This is/$.* million less than if starting at age +!.
Lesson: ,t pa"s to start sa4ing earl".
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INPUT
!UTPUT
N I"#$ PMTPV %V
25 12 -1&)5
146&&1
&
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Sol4ing for P;T: Eow much must the?!2"ear old deposit annuall" to catchthe +!2"ear old9 To %nd the re>uired annual contri(ution
enter the num(er of "ears untilretirement and the %nal goal of
/$?1+G$.D and sol4e for P;T.
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INPUT
!UTPUT
N I"#$ PMTPV %V
25 12
-11154'42
14(7262&
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5hat is the PV of this une4en cashow stream9
5-24
!
$!!
$
*!!
+
*!!
*$!-
20!
?
D!.D$
+?1.D*
++0.*D2*?.$0
0*!.! 8 PV
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Sol4ing for PV:3ne4en )ash Flow Stream
,nput cash ows in the calculatorsH)FLK register:
)F!8 !
)F$8 $!!
)F+8 *!!
)F*8 *!!
)F?8 20!
@nter ,67R 8 $! press =PV (utton to get=PV 8 /0*!.!1. &Eere =PV 8 PV.'
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5ill the FV of a lump sum (e larger orsmaller if compounded more often holdingthe stated ,- constant9
LARJ@R as the more fre>uentl"compounding occurs interest is earned oninterest more often.
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Annuall": FV*8 /$!!&$.$!'*8 /$**.$!
! $ + *
$!-
$!! $**.$!
Semiannuall": FVG8 /$!!&$.!0'G8 /$*?.!$
! $ + *0-
? 0 G
$*?.!$
$ + *!
$!!
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)lassi%cations of ,nterestRates
=ominal rate &,=;' M also called the >uotedor stated rate. An annual rate that ignorescompounding eCects.
,=;is stated in contracts. Periods must also (e
gi4en e.g. - >uarterl" or - dail" interest.
Periodic rate &,P@R' M amount of interestcharged each period e.g. monthl" or>uarterl".
,P@R8 ,=;6; where ; is the num(er ofcompounding periods per "ear. ; 8 ? for>uarterl" and ; 8 $+ for monthl" compounding.
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)lassi%cations of ,nterestRates
@Cecti4e &or e>ui4alent' annual rate &@AR8 @FF-' M the annual rate of interestactuall" (eing earned accounting forcompounding.
@FF- for $!- semiannual in4estment
@FF- 8 & $ < ,=;6; ';M $
8 & $ < !.$!6+ '+M $ 8 $!.+0-
Should (e indiCerent (etween recei4ing$!.+0- annual interest and recei4ing $!-interest compounded semiannuall".
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5h" is it important to considereCecti4e rates of return9
,n4estments with diCerent compoundinginter4als pro4ide diCerent eCecti4ereturns.
To compare in4estments with diCerentcompounding inter4als "ou must lookat their eCecti4e returns &@FF- or @AR'.
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5h" is it important to considereCecti4e rates of return9
See how the eCecti4e return 4aries(etween in4estments with the samenominal rate (ut diCerent
compounding inter4als.@ARA==3AL $!.!!-
@ARN3ART@RL7 $!.*-
@AR;=TEL7 $!.?1-@ARA,L7 &*G0' $!.0+-
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5hen is each rate used9
,=; 5ritten into contracts >uoted ("(anks and (rokers. =ot used incalculations or shown on time lines.
,P@R 3sed in calculations and shown ontime lines. ,f ; 8 $ ,=;8 ,P@R8 @AR.
@AR 3sed to compare returns onin4estments with diCerent pa"ments
per "ear. 3sed in calculations whenannuit" pa"ments dont matchcompounding periods.
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5hat is the FV of /$!! after * "ears under$!- semiannual compounding9 Nuarterl"compounding9
/$*?.?'/$!!&$.!+0FV
/$*?.!$/$!!&$.!0'FV
+
!.$!$/$!!FV
;
,$PVFV
$+*N
G*S
*+
*S
=;
=;=
==
==
+=
+=
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)an the eCecti4e rate e4er (ee>ual to the nominal rate9
7es (ut onl" if annual compounding isused i.e. if ; 8 $.
,f ; O $ @FF- will alwa"s (e greater
than the nominal rate.
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;ethod $:)ompound @ach )ash Flow
FV*8 /$!!&$.!0'?< /$!!&$.!0'+< /$!!
FV*8 /**$.!
$$!.+0$+$.00**$.!
! $
$!!
+ *0-
? 0
$!!
G
$!!
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;ethod +:Financial )alculator
Find the @AR and treat as an annuit".
@AR 8 &$ < !.$!6+'+M $ 8 $!.+0-.
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INPUT
!UTPUT
N I"#$ PMTPV %V
3 1&'25 -1&&
331'(&
&
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Find the PV of This *27ear rdinar"Annuit"
)ould sol4e (" discounting each cashow or
3se the @AR and treat as an annuit" to
sol4e for PV.
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INPUT
!UTPUT
N I"#$ PMTPV %V
3 1&'25 1&& &
-247'5)
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Loan Amortization
Amortization ta(les are widel" used forhome mortgages auto loans (usinessloans retirement plans etc.
Financial calculators and spreadsheets aregreat for setting up amortization ta(les.
@QA;PL@: )onstruct an amortization
schedule for a /$!!! $!- annual rateloan with * e>ual pa"ments.
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Step $:Find the Re>uired Annual Pa"ment
All input information is alread" gi4enust remem(er that the FV 8 ! (ecausethe reason for amortizing the loan and
making pa"ments is to retire the loan.
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INPUT
!UTPUT
N I"#$ PMTPV %V
3 1&
4&2'11
&-1&&&
-
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Step +:Find the ,nterest Paid in 7ear $
The (orrower will owe interest upon theinitial (alance at the end of the %rst"ear. ,nterest to (e paid in the %rst "ear
can (e found (" multipl"ing the(eginning (alance (" the interest rate.
,=Tt8 Ieg (alt&,'
,=T$8 /$!!!&!.$!' 8 /$!!
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Step *:Find the Principal Repaid in 7ear $
,f a pa"ment of /?!+.$$ was made atthe end of the %rst "ear and /$!! waspaid toward interest the remaining
4alue must represent the amount ofprincipal repaid.
PR,=8 P;T M ,=T
8 /?!+.$$ M /$!! 8 /*!+.$$
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Step ?:Find the @nding Ialance after 7ear $
To %nd the (alance at the end of theperiod su(tract the amount paid towardprincipal from the (eginning (alance.
@= IAL 8 I@J IAL M PR,=
8 /$!!! M /*!+.$$
8 /GD1.D
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)onstructing an Amortization Ta(le:Repeat Steps $2? 3ntil @nd of Loan
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,nterest paid declines with each
pa"ment as the (alance declines. 5hatare the taB implications of this9
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,llustrating an Amortized Pa"ment:5here does the mone" go9
)onstant pa"ments
eclining interest pa"ments
eclining (alance
/
! $ + *
?!+.$$,nterest
*!+.$$
Principal Pa"ments