1.3. The Time Value of Money Flashcards
What is a Stream of Cash Flows and how can it be represented?
a series of cash flows lasting several periods
can be represented on a timeline
If someone offers you to pay equal installements for a payment its best to…
… pay it back as soon as possible, bc the further in the future, the less value it has for you now (inflation, gut feeling, security)
if you have to pay it anyway, choose to pay as late as possible
What are the three Rules of Time Travel?
1.
2.
3.
- Comparing and Combining Values - it is only possible to compare or combine values at the same point in time
- Moving Cash Flows forward in time (right) - to move a cash flow forward in time. we must compound it
- Moving Cash Flows back in time (left) - to move a cash flow back in time, we must discount it (dividing by the interest rate factor, (1+r) (for each period))
Time Value of Money | Definition
the difference in value between money today and money in the future
Interest Rate | Definition
rate at which we can exchange money today for money in the future
Future Value (FV)
vs
Present Value (PV)
value in terms of dollars in the future (at the end of timeline)
vs
value in terms of dollars today (at beginning of timeline)
One year risk-free interest rate factor
vs
One year risk-free discount factor
(1+r)
vs
1/ (1+r)
How to Value a Stream of Cash Flows
1.
2.
- computing the present value of each individual cash flow
- then, once the cash flows are in common uits of dollars today, we combine (+/-) them (!! in FV, N-n)
Concept of Net Present Value for Decision Making
investment decision based on cost-benefit comparison of a project
What is the net present Value (NPV) of investment opportunity?
PV (benefits) - PV (costs) = PV (benefits-costs) = NPV
if benefits are cash inflows and costs are cash outflows, then the NPV of investment opportunity…
… equals present value of the stream of cash flows of the opportunity
receiving a project´s stream of future cash flows is equivalent to receiving…
… its NPV in cash today
What to keep in mind when choosing an investment opportunity
1.
2.
- choose all stand-alone projects with positive NPV
- when selecting among investment decisions take the alternative with the highest, positive NPV
Exercise: What is meant by cost of a delay?
Value of future year in present year