capital budgeting risk analysis 1finance - pedro barroso
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Sensitivity, Scenario, and Break-Even
• Allows us to look behind the NPV number to see how stable our estimates are
• When working with spreadsheets, try to build your model so that you can adjust variables in a single cell and have the NPV calculations update accordingly
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Example• Projected annual sales: 1,800 ton• Price: 5 per ton• Variable costs: 3 per ton• Fixed costs: 1,000 per year• Initial investment (fixed assets) of 6,000 with life of 3
years and salvage value of 0• No investment in working capital• Inflation: 0%• Discount rate: 8%• Tax rate: 30% (losses can be offset elsewhere in firm)
3Finance - Pedro Barroso
Example
Microsoft Office Excel 97-2003 Worksheet
Inputs: Cash Flows
Sales (ton) 1,800 Year 0 Year 1 Year 2 Year 3
Price per ton 5 Sales revenues 9,000 9,000 9,000
Variable cost per ton 3 Variable costs 5,400 5,400 5,400
Fixed cost 1,000 Fixed costs 1,000 1,000 1,000
CAPEX 6,000 Depreciation 2,000 2,000 2,000
Life 3 EBIT 600 600 600
Tax rate 30% Taxes 180 180 180
Discount rate 8% Net income 420 420 420
OCF 2,420 2,420 2,420
Investment -6,000
Total cash flow -6,000 2,420 2,420 2,420
NPV 237
IRR 10.17%
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Sensitivity Analysis: Example• Calculate NPV (or IRR) with one input varied while
keeping all other inputs constantAnnual sales Variable costs
237 237
1,500 -846 2.5 1,860
1,800 237 3.0 237
2,000 958 3.5 -1,387
Price Fixed costs
237 237
4.5 -1,387 800 597
5.0 237 1,000 237
5.5 1,860 1,200 -124
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Scenario Analysis: Example• A variation on sensitivity analysis is scenario analysis• Calculate NPV (IRR) with more than one input varied
while keeping all other inputs constantVariable cost
Price
237 2.5 3 4
4.5 237 -1,387 -3,011
5 1,860 237 -1,387
5.5 3,484 1,860 237
Scenario Summary
Current Values: Pessimistic Expected OptimisticChanging Cells: Sales 1,800 1,500 1,800 2,000 Price 5 4.5 5 5.5 Variable_cost 3 3.5 3 2.5 Fixed_cost 1,000 1,200 1,000 800Result Cells: NPV 237 -3,913 237 4,927
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Break-Even Analysis: Example• Another way to examine variability in our forecasts• What is the minimum (maximum) input value such that NPV is
at least zero (IRR = discount rate)?• Break-even analysis:
– Annual sales (min): 1,734 ton– Price (min): 4.927– Variable cost (max): 3.073– Fixed cost (max): 1,131
7Finance - Pedro Barroso
Break-Even Analysis: Example• Break-even sales (ton):
734,135
000,36.468000,2000,1)35(6.468
6.4683.01
000,22.328,2000,2)3.01(2.328,2
2.328,2577097.2
000,6000,60 3
%8
SalesSales
EBITEBIT
OCFAOCF
• Break-even price:
927.4800,1
3800,1000,36.468000,2000,1)3(800,16.468
pp
8Finance - Pedro Barroso
Real Options
• One of the fundamental insights of modern finance theory is that options have value
• Because corporations make decisions in a dynamic environment, they have options that should be considered in project valuation
• Traditional NPV does not include options value (always zero or positive)
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Real Options• Option to Expand– Has value if demand turns out to be higher than
expected
• Option to Abandon– Has value if demand turns out to be lower than
expected
• Option to Delay– Has value if the underlying variables are changing
with a favorable trend
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Discounted CF and Options• We can calculate the market value of a project as the sum of the
NPV of the project without options and the value of the managerial options implicit in the project:
NPV + Options
Example: Comparing a specialized machine versus a more versatile machine; if they both cost about the same and last the same amount of time, more versatile machine is more valuable because it comes with options
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Option to Abandon: Example• Suppose we are drilling an oil well. The drilling rig
costs $300 today, and in one year the well is either a success or a failure
• Outcomes are equally likely. Discount rate is 10%
• PV of the successful payoff at time one is $575
• PV of the unsuccessful payoff at time one is $0
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Option to Abandon: Example
Traditional NPV would indicate rejection of project:
64.381.1
5.287300
5.28705.05755.0)(
)()Pr()()Pr()(
NPV
PayoffE
FailurePayoffFailureSuccessPayoffSuccessPayoffE
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Option to Abandon: Example
Firm has two decisions to make: drill or not, abandon or stay
Do not drill
Drill
0NPV
Failure
Success: Payoff = 500
Sell the rig; salvage value
= 250
Sit on rig; stare at empty hole:
Payoff = 0
Traditional NPV analysis overlooks the option to abandon.
300
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Option to Abandon: Example
• When we include the value of the option to abandon, drilling project should proceed:
64.113)64.38(75
751.1
5.412300
5.4122505.05755.0)(
Options
NPV
PayoffE
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Option to Delay: Example
• Project can be undertaken in any of the next 4 years; discount rate is 10%
• Regardless when the time the project is launched it generate a cash flow of 2,500 forever
• NPV at the time of launch steadily rises; best time to launch the project is in year 2 (highest NPV when judged today)
Year (t) Cost PV NPVt NPV0
0 20,000 25,000 5,000 5,000
1 18,000 25,000 7,000 6,364
2 17,100 25,000 7,900 6,529
3 16,929 25,000 8,071 6,064
4 16,760 25,000 8,240 5,628
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Decision Trees
• Allow us to graphically represent the alternatives available to us in each period and the likely consequences of our actions
• This graphical representation helps to identify the best course of action
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Decision Trees
Do not study
Study finance
Squares represent decisions to be made (work backward). Circles represent
receipt of information, e.g., a test score.
The lines leading away from the squares represent the alternatives
“C”
“A”
“B”
“E”
“D”
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Decision Tree: Example• Stewart Pharmaceuticals Corp is considering investing in the
development of a drug that cures the common cold• A corporate planning group has recommended that the firm
should go ahead with the test and development phase• This preliminary phase will last one year and cost $1,000; There
is a 60% chance that tests will prove successful• If initial tests are successful, Stewart Pharmaceuticals can go
ahead with full-scale production. This investment phase will cost $1,600. Production will occur over the following 4 years with a cash flow of $1,588
• If initial tests are unsuccessful, annual cash flow is $475.9• Discount rate is 10%
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Decision Tree: Example• NPV following successful test:
• NPV following unsuccessful test:
75.433,3588,1600,1 4%101 ANPV
46.919.475600,1 4%101 ANPV
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Decision Tree: Example
Do not test
Test
Failure
Success
Do not invest
Invest
Invest0NPV
NPV = 3,433.75
NPV = 0
NPV = –91.4621Finance - Pedro Barroso
Decision Tree: Example• Decision to invest:
– Test successuful (probability 60%): Invest as NPV = 3,433.75 > 0– Test unsuccessuful (probability 40%): Not invest as NPV = -91.46 < 0
• Decision to test:– Expected payoff at year 1:
– NPV of testing at year 0:
– NPV is positive, so we should make the test
25.060,204.075.433,36.0)( PayoffE
095.8721.1
25.060,2000,1 NPV
22Finance - Pedro Barroso