NPV, bonds and markets (Chapter 4-5) Flashcards
Why is a dollar more valuable today than in the future?
- It can be invested to make more dollars (intrest)
- It can be immediately consumed (utility)
- There is no doubt about its receipt (counterparty risk)
What is the difference between simple and compound intrest?
With simple interest you withdraw the $90 from the market and reinvest only $1000 for the next year. You will therefore receive $90 in interest also for year 2.
With compound interest you also reinvest the interest for a total of $1090 the next year, giving you $98.10 interest for year 2, an amount $8.10 greater than the previous year.
Compound interest = Simple interest + Interest on interest
FV - single period
Future Value: The value in the future of a sum invested today.
PV - single period
Present value: The value today of a payment to be received in the future.
PV - multi period
FV - multi period
NPV - single period
NPV = -Cost + PV
NPV - multi period
What is EAR?
Effective annual rate
What we have is a loan with a monthly interest rate of 1.5% or a yearly interest rate of 18%.
This is equivalent to a loan with an annual interest rate of 19.56%.
Continious compounding
Perpetuity PV
A constant stream of cash flows that lasts forever
Growing Perpetuity PV
A stream of cash flows that grows at a constant rate forever
Annuity PV
A stream of constant cash flows that lasts for a fixed number of periods
Mark Young won the state lottery, paying $50 000 for 20 years. This was advertised as a Million Dollar Lottery, since $50 000 * 20 = $1 000 000. But, what is the true value if the interest rate is 8%?
PV = 50 000 *[ (1 – (1 / 1.0820)) / 0.08] PV = 50 000 * 9.8181 PV = $490 905
Growing Annuity PV
A stream of cash flows that grows at a constant rate for a fixed number of periods.
C is the cash flow to be received one period hence, g is the rate of growth per period and r is the appropriate discount rate.
The bracket term for annuity is called ”Annuity factor”, and tells us at what factor the periodic payment must be multiplied to get the present value.
What are pure discount loans?
The simplest form of loan. The borrower receives money today and repays a single lump sum (principal and interest) at a future time.