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13. NPV rule, cash flow calculations, discount rates in Capital budgeting.ppt
1. Course: Securities Markets
Topic 13:
NPV rule, cash flow calculations,
discount rates in Capital budgeting
Otabek Kurbonov, Assistant Professor of Financial
Management Department, Namseoul University
May 28, 2022, Cheonan
2. Financial theory course
schedule
• Week 1: Introduction to Finance
• Week 2: Present value and Net present value
• Week 3: Discounting and the time value of
money
• Week 4: Annuity and perpetuity
• Week 5: Introduction to Risk and Return
• Week 6: Risk Analytics
• Week 7: Portfolio Theory
• Week 8: The Capital Asset Pricing Model
• Week 9: Valuation of Fixed-Income Securities
• Week 10: Valuation of Common Stocks
• Week 11: Forward and Futures Contracts
• Week 12: Options
• Week 13: Capital budgeting criteria
• Week 14: NPV rule, cash flow calculations,
discount rates in Capital budgeting
• Week 15: Real options
3. Content
• Net present value
• IRR
• Free cash flow
• Evaluating Multiple Projects
• Comparing NPV and IRR techniques
• Choosing the discount rate
4. Net Present Value (NPV)
• Definition of NPV: The difference between the
present value of cash inflows from the project and the
present value of cash outflows (costs) of the project
• - Measured in dollars
• - Can be either positive or negative
• - We need to know the discount rate to calculate NPV
5. Net Present Value (NPV)
• - Discount rate, r, reflects the risk of the project
• - Many projects have “conventional” cash flows
6. Calculating NPV
• Suppose you are considering a project with the
following estimated cash flows
• - You believe that the appropriate discount rate for
this project is 20%
• - What is the NPV of this project?
7. Calculating NPV
• In Excel, we use NPV function to calculate NPV
• - = NPV(Discount rate, The range of cells with cash
flows)
• - Important!: NPV function assumes that the first
cash flow in the range of cells occurs in Year 1, not
in Year 0
• - Solution: When Using the NPV function, leave out
the initial outlay. Then, add the initial outlay manually
outside of the NPV function
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12. NPV Decision Rule
If the NPV is positive, accept the project!
• A positive NPV means that the project is expected to
add value to the firm
• If the firm accepts a project with the NPV of $60,
for example, the firm value increases by $60
13. Criteria for Good Capital
Budgeting Decision Rules
• 1. Does the NPV rule consider the time value of
money?
• - Yes!
• 2. Does the NPV rule adjust for risk?
• - Yes!
• 3. Does the NPV rule indicate whether the project
creates value for the firm?
• - Yes!
14. Internal Rate of Return (IRR)
• Definition of IRR: The discount rate that makes
NPV of the project zero
• - Actual rate vs. hypothetical rate
20. Calculating IRR
• In Excel, we use IRR function to calculate IRR
• - = IRR(The range of cells with cash flows)
• - Important!: Unlike NPV function, IRR function
assumes that the first cash flow in the range of cells
occurs in Year 0
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23. IRR Decision Rule
• If the IRR is greater than the actual discount rate,
accept the project!
• - IRR is the annual rate of return of the project
• - The discount rate is the “hurdle rate” required by
investors or the owner of the firm
24. Criteria for Good Capital
Budgeting Decision Rules
• 1. Does the IRR rule consider the time value of
money?
• - Yes!
• 2. Does the IRR rule adjust for risk?
• - Yes!
• 3. Does the IRR rule indicate whether the project
creates value for the firm?
• - No
25. Advantages of IRR Analysis
• - Measures the rate of return (which the NPV
analysis can’t)
• - Sometimes saves you time and effort
26. Free Cash Flow
• Cash Flow From Assets (CFFA) =
• Operating cash flow (OCF)
• – Capital expenditure (CAPEX)
• – Change in net working capital (ΔNWC)
• + Salvage value
28. Capital Expenditure (CAPEX)
• Capital expenditure is usually incurred at the
beginning of the project
• For convenience, we will include the present value of
the opportunity cost in this item
29. Change in Net Working Capital
• Net working capital = Current assets – Current
liabilities
• Key items include:
• - Account receivable, inventories, and account
payable
• Increase (decrease) in net working capital
requirement means a cash outflow (inflow)
30. Salvage Value of Fixed Assets
• Sometimes your assets could have a positive resale
value at the end of the project
• After-tax salvage
• - Consider the tax effect if resale value differs from
the net book value of the asset
• - After-tax salvage =
• Resale value – Tax rate * (Resale value – Book value)
31. Salvage Value of Net Working
Capital
Do not forget to consider the salvage value of net
working capital at the end of the project
• - Net working capital “tied up to” the project is now
freed up
• - This means a cash inflow
50. Independent projects
• Projects whose cash flows are not affected by
decisions made about other projects
• All independent projects can be undertaken if they
all are acceptable
51. Mutually exclusive projects
• Projects where the acceptance of one project means
the other(s) cannot be accepted
• Only one project can be undertaken, even if they are
all acceptable
52. Evaluating multiple projects
If projects are independent,
The same rules that are applied to a single project
should be used
• - NPV: Accept projects if NPV > 0
• - Payback period: Accept projects if the payback
period is shorter than the cutoff period
• - IRR: Accept projects if IRR > r
53. Evaluating multiple projects
If projects are mutually exclusive,
Only one project can be accepted
• - NPV: Choose the project with the highest NPV
• - Payback period: Choose the project with the
shortest payback period
• - IRR: Choose the project with the highest IRR
58. Conflict between NPV and IRR
• Generally the project with a higher NPV also has a
higher IRR
• Sometimes, however, there can be a conflict between
NPV rule and IRR rule
- This is not a problem if projects are independent
- What do we do if projects are mutually exclusive?
59. General principle
• NPV should be always preferred because
- NPV is the additional value you add to the company
- IRR is just the rate of return
• In the previous example,
- NPV(A) = $69.87; NPV(B) = $56.87
- IRR(A) = 13.78%; IRR(B) = 14.89%
60. Comparing NPV and IRR techniques I
(What do we do now?)
• More details about NPV and IRR techniques
• Why do they sometimes yield different results?
61. Overview
Comparing NPV and IRR Techniques I
• 1. Multiple IRR problem
• 2. Comparing projects with different sizes
Comparing NPV and IRR Techniques II
• 3. Comparing projects with different lives
• 4. Reinvestment rate assumptions
62. 1. Multiple IRR Problem
Sometimes a project can have multiple IRRs!
• We did not suffer from the problem in previous
examples
• Projects we have seen so far had a conventional cash
flow
63. 1. Multiple IRR Problem
What is a conventional cash flow?
• A stream of cash flows where the direction (sign) of
cash flows changes only once
• Which project has a conventional cash flow?
64. 1. Multiple IRR Problem
Multiple IRR problem
• If a project has a conventional cash flow, it has only
one IRR
• If a project has a non-conventional cash flow, it has
multiple IRRs
We cannot use the IRR rule when cash flow is non-
conventional!
• NPV rule should be used
66. 2. Comparing projects with
different sizes
• NPV is likely to be greater for large projects
67. 2. Comparing projects with
different sizes
• NPV is likely to be greater for large projects
• IRR is likely to be greater for small projects
68. General principle revisited
NPV should be always preferred because
• NPV is the additional value you add to the company
• IRR is just the rate of return
69. Sometimes IRR could make more
sense
A startup company could prefer IRR as the main
decision rule
• Limited resources
• More opportunities to invest in value projects
• Greater uncertainty
70. Comparing NPV and IRR
Techniques II
Comparing NPV and IRR Techniques I
• 1. Multiple IRR problem
• 2. Comparing projects with different sizes
Comparing NPV and IRR Techniques II
• 3. Comparing projects with different lives
• 4. Reinvestment rate assumptions
71. 3. Comparing projects with
different lives
• Generally, NPV is greater for a longer-life project
• Is it fair to use the NPV rule?
72. 3. Comparing projects with
different lives
Yes, if:
• You believe that you have no other investment
opportunities on the horizon after these two projects
are undertaken
No, if:
• You believe that investment opportunities similar to
these projects can be found consistently
• You believe that the project can be rolled over for a
long time
73. Equivalent Annual Cost (EAC)
• The value of the annual payment in the annuity that
has the same present value as our original project
- Average “annualized” net cash flow
- To compute EAC, we need to know the project’s
1) NPV, 2) length, and 3) discount rate
- Use PMT function in Excel
- = PMT(Rate, Number of payments, Present value,
[Future value], [Type])
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79. 4. Reinvestment rate assumptions
Both NPV and IRR assume that intermediate cash
flows of a project are reinvested
• NPV assumes that they are reinvested at the actual
discount rate
• IRR assumes that they are reinvested at the IRR
80. 4. Reinvestment rate assumptions
• How can we verify those assumptions?
• What are the implications of those assumptions?
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88. 4. Reinvestment rate assumptions
• - NPV assumption: The company can find projects
whose rate of return equals the discount rate of the
company
• - IRR assumption: The company can find projects
whose rate return equals the IRR of this specific
project
• Which assumption is more realistic?
• - NPV…
89. Choosing the discount rate
• How do we determine the appropriate discount rate
of a project?
• - So far the discount rate was given in problems
• - Discount rate is determined by risk of the project
or the company
• - The meaning of the discount rate?
• - How to choose the discount rate?
90. Other names for discount rate
Discount rate = Required rate of return= Cost of capital
Required rate of return
• - Rate of return investors demand when investing in the
firm
Cost of capital
• - The return to investors is the company’s “cost of capital”
91. Cost of capital
The cost of capital is the hurdle rate for the company’s
investment
• - IRR decision rule: IRR > r
What are the components that constitute a company's
capital?
• - Debt and equity
• - Cost of debt and cost of equity
• - Estimation of cost of debt and cost of equity is out
of scope of this course
92. Cost of capital
• Cost of capital
• = Weighted average cost of debt and cost of equity
• - The weights of debt and equity are determined by
the company’s capital structure
• This is the “discount rate” we use in a project
analysis
93. Example
Consider the following information:
• - Total assets: $100M; Debt: $30M; Equity: $70M
• - Weight of debt: 30M / 100M = 0.3
• - Weight of equity: 70M / 100M = 0.7
• - We are told that the company’s after-tax cost of
debt is 3%, and the cost of equity is 8%. What is the
cost of capital of this company?
• - 0.3 x 3% + 0.7 x 8% = 6.5%
94. Company risk vs. Project risk
The cost of capital reflects the overall risk of the
company
• Technically, the discount rate used in a project
analysis should reflect the risk of the specific project
• In practice, the company’s cost of capital is widely
used as the discount rate for a project
• Assumption: the project has the same risk as the firm
• If the project risk is significantly different from the
overall company risk, use a different rate