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capital budgeting definition:
the process of allocating and budgeting capital (i.e. finding investments with positive NPVs)
3 approaches to evaluating investments:
Net Present Value (NPV)
Payback Rule (also called Payback Period)
Internal Rate of Return (IRR)
Net Present Value (NPV) definition:
the difference between an investment’s market value and its cost
What question does Net Present Value answer?
“how much value is created or destroyed by undertaking this investment?”
NPV equation:
PV(Future Cash Inflows) – PV(Future Cash Outflows)
PV of all future cash flows - investments
positive vs negative NPV
+NPV = good = accept
-NPV = bad = reject
How should we estimate the value of the business plan?
Estimate the future cash flows we expect the business to produce
Apply basic discounted cash flow procedure to estimate the PV of those cash flows
Estimate NPV as the difference between the PV of the future cash flows and the initial cost
NPVs are:
estimates
payback period:
the amount of time required for an investment to generate cash flows sufficient to recover its initial cost
Based on the payback rule, an investment is acceptable if:
the payback period < some prespecified number of years
The NPV of a project is positive $X. If there are Y million shares outstanding, what should the acceptance of this project do to each share’s value?
$X / Y shares = $ per share (i.e. your answer)
disadvantages of the payback period rule:
time value of money is ignored
fails to consider any risk differences
requires an arbitrary cutoff point
ignores cash flows beyond the cutoff date
biased against long-term projects
SUMMARY: it doesn’t ask the right questions
who uses payback period the majority of the time:
large and sophistcated companies when making relatively minor/small decisions because:
many decisions do not warrant detailed analysis
it is biased towards liquidity (short-term projects)
discounted payback period:
the length of time required for an investment’s discounted cash flows to equal its initial cost
if this is positive for a company, then their NPV is also positive
if we use discounted payback, we will not accidentally:
take on a project that has a negative NPV
payback period advantages:
easy to understand
adjusts for uncertainty of later cash flows
biased towards liquidity
What question does Internal Rate of Return answer?
“What percent return am I getting on this investment?”
Based on the IRR, an investment is acceptable if:
IRR >/= the required return
internal rate of return (IRR) definition:
the discount rate that makes the NPV=0
IRR advantages:
makes it easier to compare project of different sizes
closely related to NPV, often leading to identical decisions
easy to understand and communicate
IRR disadvantages
doesn’t mathematically include the discount rate
can be misleading when comparing mutual exclusive (“seperate”) projects