annuity
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Annuity
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What are Annuities?
Essentially a series of fixed payments
Required from a person or paid to a person at a specified frequency over the course of a fixed time period
Most common payment frequencies are yearly,semi-annually,quaterly & monthly
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Present Value (PV) of an Annuity
Current value of a set of cash flows in the future
Given a specified rate of return or discount rate
Future cash flows are discounted at the discount rate
Higher the discount rate, the lower the present value of annuity
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Calculation of PV of an Annuity
Mathematically,
PV of an Annuity = C * [ 1- (1+i)-n ]/ i
where,
C = Cash flow per period
i = Interest rate
n = Number of payments
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Future Value (FV) of an Annuity
Value of a group of payments at a specified date in future
Measures how much a person would have in the future given a specified rate of return or discount rate
Future cash flow of annuity grow at the discount rate
Higher the discount rate, higher is the FV of annuity
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Calculation of FV of an Annuity
Mathematically,
FV of an Annuity = C* [ (1+i)n – 1 ]/ i
where,
C = Cash flows per period
i = Interest rate
n = Number of payments
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Difference between Ordinary
Annuity & Annuity Due
Two types of Annuities:
1. Ordinary Annuities: Payments are required at the end of each period.
Example: Bonds
2. Annuity Due: Payments are required at the beginning of each period.
Example: Rent
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Calculation of PV & FV of an
Annuity Due
Mathematically,
PV of an Annuity Due = C*[{ 1- (1+i)-n }/i] * (1+i)
FV of an Annuity Due = C*[{ (1+i)n – 1}/i] * (1+i)
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Thank You