Upload
leona-deonoso
View
218
Download
0
Embed Size (px)
Citation preview
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
1/53
Calculate Point Of Indierence
Between Two Dierent Cost Scenarios
Principles of Cost Analysis andManagement
© Dale ! "eiger #
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
2/53
$%at would you do for a &londi'e Bar(It)s essentially a Cost*Bene+t Analysis,
© Dale ! "eiger -
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
3/53
Terminal .earning O/0ecti1e
• Action: Calculate Point Of Indierence Between Two Dierent Cost Scenarios T%at S%are A Common2aria/le
• Condition: 3ou are a cost analyst wit% 'nowledge
of t%e operating en1ironment and access to allcourse materials including %andouts andspreads%eet tools
• Standard: $it% at least 456 accuracy7
#! Descri/e t%e concept of indierence point or tradeo -! 89press cost scenarios in e:uation form wit% a
common 1aria/le
;! Identify and enter rele1ant scenario data into macroena/led templates to calculate Points of Indierence
© Dale ! "eiger ;
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
4/53
$%at is Tradeo(
• .ife is full of Tradeos
• $%at we gi1e up could /e 1isuali
• $%at we recei1e could /e la/eled a=/ene+t>
• T%e transaction occurs w%en t%e /ene+tis e:ual to or greater t%an t%e cost
• Point of e:uili/rium7 t%e point w%erecost is e:ual to /ene+t recei1ed!
$ ill $ or ' f or ? ood
© Dale ! "eiger @
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
5/53
Tradeo T%eory
• Identi+es t%e point of e:uality/etween two diering coste9pressions wit% a common
un'nown 1aria/le• =e1enue> and =Total Cost> are
cost e9pressions wit% =um/er of
nits> as t%e common 1aria/le7e1enue Price*nit E Fnits
Total Cost G2C*nit E FnitsH ?i9ed Cost
© Dale ! "eiger J
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
6/53
Tradeo T%eory Gcont)dH
• Brea'e1en Point is t%e point w%ere7
e1enue K Total Cost Pro+t
e1enue K Total Cost 5
e1enue Total Cost
• Setting two cost e9pressions wit% acommon 1aria/le e:ual to one
anot%er will yield t%e /rea'e1en ortradeo point
© Dale ! "eiger L
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
7/53
$%at is an Indierence Point(
• T%e point of e:uality /etween two coste9pressions wit% a common 1aria/le
• epresents t%e =Decision Point> or
=Indierence Point>• .e1el of common 1aria/le at w%ic% two
alternati1es are e:ual
• A/o1e indierence point one of t%ealternati1es will yield lower cost
• Below indierence point t%e ot%eralternati1e will yield lower cost
© Dale ! "eiger N
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
8/53
Indierence PointApplications• 81aluating two mac%ines t%at perform t%e
same tas'
• i!e! .aser printer 1s! in'0et
• .ow usage le1el fa1ors t%e in'0et %ig% usagefa1ors t%e laser /ut at some point t%ey aree:ual
• Outsourcing decisions
• $%at le1el of acti1ity would ma'e outsourcingattracti1e(
• $%at le1el would fa1or insourcing(
• At w%at le1el are t%ey e:ual(© Dale ! "eiger 4
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
9/53
C%ec' on .earning
• $%at is an indierence point ortradeo point(
• $%at is an e9ample of an applicationof indierence points(
© Dale ! "eiger
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
10/53
Indierence PointApplications• 81aluating two Courses of Action7
• Cell p%one data plan
• Plan A costs !J5 per MB used
• Plan B costs -5 per mont% !5J per MBused
• Plan A is t%e o/1ious c%oice if usage is low
• Plan B is t%e o/1ious c%oice if usage is %ig%
• $%at is t%e Indierence Point(• T%e num/er of MB used a/o1e w%ic% Plan B
costs less /elow w%ic% Plan A costs less(
© Dale ! "eiger #5
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
11/53
Plan A 1s! Plan B
• $%at is t%e cost e9pression for PlanA(• !J5 E F MB
• $%at is t%e cost e9pression for PlanB(• -5 !5J EF MB
• $%at is t%e common 1aria/le(
• F MB used
© Dale ! "eiger ##
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
12/53
Plan A 1s! Plan B
• $%at is t%e cost e9pression for PlanA(• !J5 E F MB
• $%at is t%e cost e9pression for PlanB(• -5 !5J EF MB
• $%at is t%e common 1aria/le(
• F MB used
© Dale ! "eiger #-
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
13/53
Plan A 1s! Plan B
• $%at is t%e cost e9pression for PlanA(• !J5 E F MB
• $%at is t%e cost e9pression for PlanB(• -5 !5J EF MB
• $%at is t%e common 1aria/le(
• F MB used
© Dale ! "eiger #;
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
14/53
Plan A 1s! Plan B
• $%at is t%e cost e9pression for PlanA(• !J5 E F MB
• $%at is t%e cost e9pression for PlanB(• -5 !5J EF MB
• $%at is t%e common 1aria/le(
• F MB used
© Dale ! "eiger #@
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
15/53
Sol1ing for IndierencePoint• Set t%e cost e9pressions e:ual to eac%
ot%er7
!J5 E F MB -5 !5J EF MB
!J5 E F MB !5J EF MB -5
!@J E F MB -5
F MB -5*!@J
F MB -5*!@JF MB -5*!@J
F MB @@!@
© Dale ! "eiger #J
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
16/53
Sol1ing for IndierencePoint• Set t%e cost e9pressions e:ual to eac%
ot%er7
!J5 E F MB -5 !5J EF MB
!J5 E F MB !5J EF MB -5
!@J E F MB -5
F MB -5*!@J
F MB -5*!@JF MB -5*!@J
F MB @@!@
© Dale ! "eiger #L
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
17/53
Sol1ing for IndierencePoint• Set t%e cost e9pressions e:ual to eac%
ot%er7
!J5 E F MB -5 !5J EF MB
!J5 E F MB !5J EF MB -5
!@J E F MB -5
F MB -5*!@J
F MB -5*!@JF MB -5*!@J
F MB @@!@
© Dale ! "eiger #N
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
18/53
Sol1ing for IndierencePoint• Set t%e cost e9pressions e:ual to eac%
ot%er7
!J5 E F MB -5 !5J EF MB
!J5 E F MB !5J EF MB -5
!@J E F MB -5
F MB -5*!@J
F MB -5*!@JF MB -5*!@J
F MB @@!@
© Dale ! "eiger #4
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
19/53
Sol1ing for IndierencePoint• Set t%e cost e9pressions e:ual to eac%
ot%er7
!J5 E F MB -5 !5J EF MB
!J5 E F MB !5J EF MB -5
!@J E F MB -5
F MB -5*!@J
F MB -5*!@JF MB -5*!@J
F MB @@!@
© Dale ! "eiger #
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
20/53
Plan A 1s! Plan B
5 -5 @5 L55
J
#5
#J
-5
-J
;5
;J
Plan A
Plan B
@@!@Axis = Number of MB Used
ost of both plans increases as # MB increases
Cost of Plan A is ero !hen usa"eis ero but increases rapidl$
!ith usa"eCost of Plan B starts at %&' but
increases slo!l$ !ith usa"e
© Dale ! "eiger
-5
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
21/53
Proof
• Plug t%e solution into t%e originale:uation7
!J5 E F MB -5 !5J E F MB
!J5 E @@!@ MB -5 !5J E @@!@MB
!J5 E @@!@ MB -5 !5J E @@!@MB
--!-5 -5 -!--
--!-5 --!--© Dale ! "eiger -#
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
22/53
Interpreting t%e esults
• Decision7 $ill you use more or lesst%an @@!@ MB per mont%(• sing less t%an @@!@ MB per mont%
ma'es Plan A t%e /etter deal
• sing more t%an @@!@ MB per mont%ma'es Plan B t%e /etter deal
•$%at ot%er factors mig%t youconsider w%en ma'ing t%e decision(
© Dale ! "eiger --
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
23/53
Indierence PointsSpreads%eet8nter data to compare two multi1ariate cost scenariosi!e! Cell p%one data plans
Sol1e for Brea'e1en le1el of sage
© Dale ! "eiger -;
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
24/53
Indierence PointsSpreads%eet8nter dierent :uantities to compare t%e
cost of /ot% options for 1arious le1els of usage
See w%ic% option is more fa1ora/le at a gi1en le1el
© Dale ! "eiger -@
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
25/53
C%ec' on .earning
• Qow would you +nd t%e indierencepoint /etween two cost options wit% acommon 1aria/le(
• 3ou are ta'ing your c%ildren to t%e
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
26/53
Indierence Point 89ample
• A si9pac' of soda costs -!J- andcontains N- ounces of soda
• A twoliter /ottle of t%e same sodacontains LN!- ounces of soda
• $%at price for t%e twoliter /ottlegi1es an e:ual 1alue(
• T%e common 1aria/le is cost perounce
© Dale ! "eiger -L
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
27/53
Indierence Point 89ample
• $%at is t%e e9pression for cost perounce for t%e si9 pac'(• -!J-*N- o
• $%at is t%e e9pression for cost perounce for t%e twoliter /ottle(• Price*LN!- o
© Dale ! "eiger -N
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
28/53
Indierence Point 89ample
• $%at is t%e e9pression for cost perounce for t%e si9 pac'(• -!J-*N- o
• $%at is t%e e9pression for cost perounce for t%e twoliter /ottle(• Price*LN!- o
© Dale ! "eiger -4
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
29/53
Indierence Point 89ample
• $%at is t%e e9pression for cost perounce for t%e si9 pac'(• -!J-*N- o
• $%at is t%e e9pression for cost perounce for t%e twoliter /ottle(• Price*LN!- o
© Dale ! "eiger -
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
30/53
Sol1ing for Brea'e1en Price
• Set t%e two cost e9pressions e:ual to oneanot%er7
Cost per o
pac'Price*LN!- o
Price*LN!- o
Price !5;J*o
Price !5;J*o
Price !5;J E LN!-
Price appro9imately -!;J
© Dale ! "eiger ;5
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
31/53
Sol1ing for Brea'e1en Price
• Set t%e two cost e9pressions e:ual to oneanot%er7
Cost per o
pac'Price*LN!- o
Price*LN!- o
Price !5;J*o
Price !5;J*o
Price !5;J E LN!-
Price appro9imately -!;J
© Dale ! "eiger ;#
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
32/53
Sol1ing for Brea'e1en Price
• Set t%e two cost e9pressions e:ual to oneanot%er7
Cost per o
pac'Price*LN!- o
Price*LN!- o
Price !5;J*o
Price !5;J*o
Price !5;J E LN!-
Price appro9imately -!;J
© Dale ! "eiger ;-
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
33/53
Sol1ing for Brea'e1en Price
• Set t%e two cost e9pressions e:ual to oneanot%er7
Cost per o
pac'Price*LN!- o
Price*LN!- o
Price !5;J*o
Price !5;J *o
Price !5;J E LN!-
Price appro9imately -!;J
© Dale ! "eiger ;;
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
34/53
Sol1ing for Brea'e1en Price
• Set t%e two cost e9pressions e:ual to oneanot%er7
Cost per o
pac'Price*LN!- o
Price*LN!- o
Price !5;J*o
Price !5;J *o
Price !5;J E LN!-
Price appro9imately -!;J
© Dale ! "eiger ;@
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
35/53
Si9Pac' 1s! Two.iter
5 # - ; @
G5!5#H
5!55
5!5#
5!5-
5!5;
5!5@
5!5J
5!5L
Lpac' -!J-
-.iter GLN!- o
is = Un(no!n Price of &)*iter
rice of &)liter increases cost per o+ increases
C o s t
P e r O
u n c e
-!;J
Cost of ,)pac( is (no!n soCost per o+ is constant
© Dale ! "eiger
;J
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
36/53
Interpreting t%e esults
• If t%e price of t%e twoliter is lesst%an -!;J it is a /etter deal t%ant%e si9pac'
• $%at ot%er factors mig%t youconsider w%en ma'ing your decision(
© Dale ! "eiger ;L
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
37/53
Indierence PointsSpreads%eet8nter Data for two dierent cost per unit
optionsi!e! cost per ounce of soda
8nter cost of si9pac' and num/erof ounces
8nter num/er ounces in a-literSol1e for /rea'e1en price
© Dale ! "eiger ;N
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
38/53
C%ec' on .earning
• $%en sol1ing for an indierencepoint w%at two :uestions s%ould youas' yourself +rst(
© Dale ! "eiger ;4
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
39/53
Tradeos nder ncertainty
• e1iew7 89pected 2alue Pro/a/ility of Outcome# E Dollar 2alue of Outcome#
Pro/a/ility of Outcome- E Dollar 2alue of Outcome-
Pro/a/ility of Outcome; E Dollar 2alue of Outcome;
etc!
• Assumes pro/a/ilities and dollar1alue of outcomes are 'nown or can/e estimated
© Dale ! "eiger ;
% if / /ili i
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
40/53
$%at if Pro/a/ility isn'nown(• Sol1e for Brea'e1en Pro/a/ility
• .oo' for w%at IS 'nown and w%atrelations%ips e9ist
• Compare two alternati1es7• One %as a 'nown e9pected 1alue
• 89ample7 Only one outcome wit% a'nown dollar 1alue and pro/a/ility of
#556
• T%e ot%er %as two possi/le outcomeswit% un'nown pro/a/ility
© Dale ! "eiger @5
S l i f B '
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
41/53
Sol1ing for Brea'e1enPro/a/ility• Su/scri/e to automatic online %ard
dri1e /ac'up ser1ice for #55 peryear
O• Do not su/scri/e to t%e /ac'up
ser1ice
•
Pay 5 if your %ard dri1e does notfail
• Pay #555 to reco1er your %arddri1e if it does fail!
© Dale ! "eiger @#
S l i f B '
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
42/53
Sol1ing for Brea'e1enPro/a/ility• $%at is t%e cost e9pression for t%e
e9pected 1alue of t%e /ac'up ser1ice(
• $%at is t%e outcome or dollar 1alue(
#55
• $%at is t%e pro/a/ility of t%at outcome(
#556
• So t%e cost e9pression is7
#55E#556
© Dale ! "eiger @-
S l i f B '
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
43/53
Sol1ing for Brea'e1enPro/a/ility• $%at is t%e cost e9pression for t%e
online /ac'up ser1ice(
• $%at is t%e outcome or dollar 1alue(
#55
• $%at is t%e pro/a/ility of t%at outcome(
#556
• So t%e cost e9pression is7
#55E#556
© Dale ! "eiger @;
S l i f B '
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
44/53
Sol1ing for Brea'e1enPro/a/ility• $%at is t%e cost e9pression for not su/scri/ing
to t%e online /ac'up ser1ice(
• $%at are t%e outcomes and dollar 1alues(• Qard dri1e failure #555
• o %ard dri1e failure 5
• Qow would you e9press t%e un'nown pro/a/ilityof eac% outcome(• Pro/a/ility6 of %ard dri1e failure P
• Pro/a/ility6 of no %ard dri1e failure #556 P
• So t%e cost e9pression is7
#555EP 5EG#556 PH
© Dale ! "eiger @@
S l i f B '
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
45/53
Sol1ing for Brea'e1enPro/a/ility• $%at is t%e cost e9pression for not su/scri/ing
to t%e online /ac'up ser1ice(
• $%at are t%e outcomes and dollar 1alues(• Qard dri1e failure #555
• o %ard dri1e failure 5
• Qow would you e9press t%e un'nown pro/a/ilityof eac% outcome(• Pro/a/ility6 of %ard dri1e failure P
• Pro/a/ility6 of no %ard dri1e failure #556 P
• So t%e cost e9pression is7
#555EP 5EG#556 PH
© Dale ! "eiger @J
S l i f B '
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
46/53
Sol1ing for Brea'e1enPro/a/ility• Set t%e two e9pressions e:ual to one anot%er7
82 of not su/scri/ing 82 of su/scri/ing
#555EP 5EG#556 PH #55E#556
#555EP 5EG#556 PH #55E#556#555EP #55E#556
#555EP #55
P #55*#555
P #55*#555P !# or #56
© Dale ! "eiger @L
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
47/53
"rap%ic Solution
5 5!5J 5!# 5!#J5
-5
@5
L5
45
#55
#-5
#@5
#L5
82 of Su/scription
82 of no su/scription
xis = Probabilit$ of hard dri-e failure
robabilit$ increases expected -alue .cost/ increases
Cost of subscription is (no!n so0xpected 1alue is constant
© Dale ! "eiger@N
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
48/53
Interpreting t%e esults
• If t%e pro/a/ility of %ard dri1e failureis greater t%an #56 t%en t%e /ac'upser1ice is a good deal
• If t%e pro/a/ility of %ard dri1e failureis less t%an #56 t%en t%e /ac'upser1ice may /e o1erpriced
• $%at ot%er factors mig%t youconsider in t%is case(
© Dale ! "eiger @4
I di P i t
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
49/53
Indierence PointsSpreads%eet
ol1e for /rea'e1en Pro/a/ility
De+ne t%e two options you are comparing
© Dale ! "eiger @
I di P i t
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
50/53
Indierence PointsSpreads%eet
8nter 'nown data for /ot% optionsSol1e for un'nown pro/a/ility
See %ow e9pected 1alue c%angesas pro/a/ility c%anges
© Dale ! "eiger J5
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
51/53
$%at If(
• $%at if t%e cost of reco1ering t%e%ard dri1e is -555( $%at is t%e/rea'e1en pro/a/ility(
• $%at if t%e cost of t%e /ac'upser1ice is J5( J55(
© Dale ! "eiger J#
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
52/53
C%ec' on .earning
• $%at is t%e e:uation for e9pected1alue(
• $%ic% 1alue is represented /y a
%ori
8/18/2019 Slides Calculate Point of Indiff Between Two Diff Scenarios that Share Variable.pptx
53/53
Practical 89ercises