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Summary, Microeconomics, Investment, Global Edition, ISBN: 9781292215624 ECON202 $6.59   Add to cart
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Summary, Microeconomics, Investment, Global Edition, ISBN: 9781292215624 ECON202
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  • Course
  • ECON202
  • Institution
  • University Of KwaZulu-Natal (UKZN)
  • Book
  • Microeconomics, Global Edition

This document summarizes investment, chapter 16 of the Economics textbook. It is briefly six pages and covers the most important points.

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Document information

  • No
  • Chapter 16
  • November 11, 2022
  • 8
  • 2022/2023
  • Summary

Subjects

  • microeconomics
  • investment

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Economics-
202- UKZN
Investments
 People value their present consumption more than their future consumption hence people
need incentives to delay their consumption.

 People would prefer to have their money today grown by X amount to incentivize the
delay in consumption. This is because of positive time preferences.

 1 ( 1+ i ) (Compounding factor)
t


o where i is the incentive and t are the future dates
o we want R1 today to be valued in the future(t)at R1 plus incentive(i) for delaying
consumption

General Equation: FV =PV (1+i )t where…
o FV = Future Value (growth on investment)
o PV = Present Value – the current value of your investment
o ( 1+i )t = Compounding Factor


 If you are frequently compounding: FV =PV 1+ ( ) i tn
n
o Geometric Equation as n increases, there would be an upward sloping
function (exponential function)
o




EXPONENTIAL FUNCTION

, Economics-
202 -UKZN
FV
 Present Value of Future Value: PV = where…
( 1+ i )t
1
 is the discount factor
( 1+ i )t

 What is the present value of a stream of Future Payments(f)?

 PV = i 1−
f
[ 1
( 1+i )t ]
 What do I invest today to earn a certain future payment(f) in perpetuity?
f
 PV = where i is the current market interest rate.
i



Perpetuity means no maturity date/forever

Hence how much do I invest presently to earn the planned future payments
forever given the current market interest rate?

And f is the stream of future payments
Can you notice the
difference between the
two equations? What
has changed

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