FINS1613 Lecture Notes - Lecture 2: Kolmogorov Space, Cash Flow
Fiacial Matheatics II
Valuing a Stream of Cash Flows
• ALWAYS START BY DRAWING A TIMELINE – Makes complicated cash
flos easier to isualise so you do’t ake istakes.
• Calculate the PV of the timeline – Bring all individual cash flows to time
0. Sum them to find the PV of all cash flows.
APR vs EAR
APR (Annual Percentage Rate)
• Total interest earned in a year without compounding
• APR = Per period interest rate * Number of compounding periods
EAR (Effective Annual Rate)
• How much interest you will earn in a year with compounding
• EAR = (1+r)m – 1 where r= (APR/m) and m = periods of compounding
Annuities
• Stream of a specified number
• Equal cash flow
• Occur at regular intervals (Not necessarily every year – must find
according interest rate per period)
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Document Summary
Apr (annual percentage rate: total interest earned in a year without compounding, apr = per period interest rate * number of compounding periods. Ear (effective annual rate: how much interest you will earn in a year with compounding, ear = (1+r)m 1 where r= (apr/m) and m = periods of compounding. Annuities: stream of a specified number, equal cash flow, occur at regular intervals (not necessarily every year must find according interest rate per period, note cash flow starts at t=1 but is valued at t=0. Perpetuity: stream of equal cash flows, occur at regular intervals, make payments forever, note cash flow starts at t=1 but is valued at t=0. Instead of equal payments each period, each payment grows at a rate of (1+g) compared to the previous payment. Note cash flow starts at t=1 but is valued at t=0.