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Copyright © 2009 Pearson Prentice Hall. All rights reserved. Chapter 4 Time Value of Money.

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1 Copyright © 2009 Pearson Prentice Hall. All rights reserved. Chapter 4 Time Value of Money

2 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-2 Learning Goals 1.Discuss the role of time value in finance, the use of computational aids, and the basic patterns of cash flow. 2.Understand the concept of future value and present value, their calculation for single amounts, and the relationship between them. 3.Find the future value and the present value of both an ordinary annuity and an annuity due, and the present value of a perpetuity.

3 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-3 Learning Goals (cont.) 4.Calculate both the future value and the present value of a mixed stream of cash flows. 5.Understand the effect that compounding interest more frequently than annually has on future value and the effective annual rate of interest. 6.Describe the procedures involved in (1) determining deposits needed to accumulate to a future sum, (2) loan amortization, (3) finding interest or growth rates, and (4) finding an unknown number of periods.

4 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-4 The Role of Time Value in Finance Most financial decisions involve costs & benefits that are spread out over time. Time value of money allows comparison of cash flows from different periods. Question: Your father has offered to give you some money and asks that you choose one of the following two alternatives: –$1,000 today, or –$1,100 one year from now. What do you do?

5 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-5 The Role of Time Value in Finance (cont.) The answer depends on what rate of interest you could earn on any money you receive today. For example, if you could deposit the $1,000 today at 12% per year, you would prefer to be paid today. Alternatively, if you could only earn 5% on deposited funds, you would be better off if you chose the $1,100 in one year.

6 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-6 Basic Concepts Future Value: compounding or growth over time Present Value: discounting to today’s value Single cash flows & series of cash flows can be considered Time lines are used to illustrate these relationships

7 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-7 Computational Aids Use the Equations Use the Financial Tables Use Financial Calculators Use Electronic Spreadsheets

8 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-8 Computational Aids (cont.) Figure 4.1 Time Line

9 Copyright © 2009 Pearson Prentice Hall. All rights reserved. 4-9 Computational Aids (cont.) Figure 4.2 Compounding and Discounting

10 Copyright © 2009 Pearson Prentice Hall. All rights reserved Computational Aids (cont.) Figure 4.4 Financial Tables

11 Copyright © 2009 Pearson Prentice Hall. All rights reserved Basic Patterns of Cash Flow The cash inflows and outflows of a firm can be described by its general pattern. The three basic patterns include a single amount, an annuity, or a mixed stream:

12 Copyright © 2009 Pearson Prentice Hall. All rights reserved Simple Interest With simple interest, you don’t earn interest on interest. Year 1: 5% of $100=$5 + $100 = $105 Year 2: 5% of $100=$5 + $105 = $110 Year 3: 5% of $100=$5 + $110 = $115 Year 4: 5% of $100=$5 + $115 = $120 Year 5: 5% of $100=$5 + $120 = $125

13 Copyright © 2009 Pearson Prentice Hall. All rights reserved Compound Interest With compound interest, a depositor earns interest on interest! Year 1: 5% of $100.00= $ $100.00= $ Year 2: 5% of $105.00= $ $105.00= $ Year 3: 5% of $ = $5.51+ $110.25= $ Year 4: 5% of $115.76= $ $115.76= $ Year 5: 5% of $121.55= $ $121.55= $127.63

14 Copyright © 2009 Pearson Prentice Hall. All rights reserved Time Value Terms PV 0 =present value or beginning amount i= interest rate FV n =future value at end of “n” periods n=number of compounding periods A=an annuity (series of equal payments or receipts)

15 Copyright © 2009 Pearson Prentice Hall. All rights reserved Four Basic Models FV n = PV 0 (1+i) n = PV x (FVIF i,n ) PV 0 = FV n [1/(1+i) n ] = FV x (PVIF i,n ) FVA n = A (1+i) n - 1= A x (FVIFA i,n ) i PVA 0 = A 1 - [1/(1+i) n ] = A x (PVIFA i,n ) i

16 Copyright © 2009 Pearson Prentice Hall. All rights reserved Future Value of a Single Amount Future Value techniques typically measure cash flows at the end of a project’s life. Future value is cash you will receive at a given future date. The future value technique uses compounding to find the future value of each cash flow at the end of an investment’s life and then sums these values to find the investment’s future value. We speak of compound interest to indicate that the amount of interest earned on a given deposit has become part of the principal at the end of the period.

17 Copyright © 2009 Pearson Prentice Hall. All rights reserved $100 x (1.08) 1 = $100 x FVIF 8%,1 $100 x 1.08 =$108 Future Value of a Single Amount: Using FVIF Tables If Fred Moreno places $100 in a savings account paying 8% interest compounded annually, how much will he have in the account at the end of one year?

18 Copyright © 2009 Pearson Prentice Hall. All rights reserved FV 5 = $800 X ( ) 5 = $800 X (1.338) = $1, Future Value of a Single Amount: The Equation for Future Value Jane Farber places $800 in a savings account paying 6% interest compounded annually. She wants to know how much money will be in the account at the end of five years.

19 Copyright © 2009 Pearson Prentice Hall. All rights reserved Future Value of a Single Amount: A Graphical View of Future Value Figure 4.5 Future Value Relationship

20 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of a Single Amount Present value is the current dollar value of a future amount of money. It is based on the idea that a dollar today is worth more than a dollar tomorrow. It is the amount today that must be invested at a given rate to reach a future amount. Calculating present value is also known as discounting. The discount rate is often also referred to as the opportunity cost, the discount rate, the required return, or the cost of capital.

21 Copyright © 2009 Pearson Prentice Hall. All rights reserved $300 x [1/(1.06) 1 ] =$300 x PVIF 6%,1 $300 x = $ Present Value of a Single Amount: Using PVIF Tables Paul Shorter has an opportunity to receive $300 one year from now. If he can earn 6% on his investments, what is the most he should pay now for this opportunity?

22 Copyright © 2009 Pearson Prentice Hall. All rights reserved PV = $1,700/( ) 8 = $1,700/1.851 = $ Present Value of a Single Amount: The Equation for Future Value Pam Valenti wishes to find the present value of $1,700 that will be received 8 years from now. Pam’s opportunity cost is 8%.

23 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of a Single Amount: A Graphical View of Present Value Figure 4.6 Present Value Relationship

24 Copyright © 2009 Pearson Prentice Hall. All rights reserved Annuities Annuities are equally-spaced cash flows of equal size. Annuities can be either inflows or outflows. An ordinary (deferred) annuity has cash flows that occur at the end of each period. An annuity due has cash flows that occur at the beginning of each period. An annuity due will always be greater than an otherwise equivalent ordinary annuity because interest will compound for an additional period.

25 Copyright © 2009 Pearson Prentice Hall. All rights reserved Types of Annuities Note that the amount of both annuities total $5,000. Fran Abrams is choosing which of two annuities to receive. Both are 5-year $1,000 annuities; annuity A is an ordinary annuity, and annuity B is an annuity due. Fran has listed the cash flows for both annuities as shown in Table 4.1 on the following slide.

26 Copyright © 2009 Pearson Prentice Hall. All rights reserved Table 4.1 Comparison of Ordinary Annuity and Annuity Due Cash Flows ($1,000, 5 Years)

27 Copyright © 2009 Pearson Prentice Hall. All rights reserved Finding the Future Value of an Ordinary Annuity Fran Abrams wishes to determine how much money she will have at the end of 5 years if he chooses annuity A, the ordinary annuity and it earns 7% annually. Annuity a is depicted graphically below:

28 Copyright © 2009 Pearson Prentice Hall. All rights reserved Future Value of an Ordinary Annuity: Using the FVIFA Tables FVA = $1,000 (FVIFA,7%,5) = $1,000 (5.751) = $5,751

29 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of an Ordinary Annuity Braden Company, a small producer of plastic toys, wants to determine the most it should pay to purchase a particular annuity. The annuity consists of cash flows of $700 at the end of each year for 5 years. The required return is 8%.

30 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of an Ordinary Annuity: The Long Method Table 4.2 Long Method for Finding the Present Value of an Ordinary Annuity

31 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of an Ordinary Annuity: Using PVIFA Tables PVA =$700 (PVIFA,8%,5) =$700 (3.993) =$2,795.10

32 Copyright © 2009 Pearson Prentice Hall. All rights reserved FVA = $1,000(FVIFA,7%,5)(1+.07) = $1,000 (5.751) (1.07) = $6,154 Future Value of an Annuity Due: Using the FVIFA Tables Fran Abrams now wishes to calculate the future value of an annuity due for annuity B in Table 4.1. Recall that annuity B was a 5 period annuity with the first annuity beginning immediately.

33 Copyright © 2009 Pearson Prentice Hall. All rights reserved PVA = $700 (PVIFA,8%,5) (1.08) =$700 (3.993) (1.08) =$3, Present Value of an Annuity Due: Using PVIFA Tables In the earlier example, we found that the value of Braden Company’s $700, 5 year ordinary annuity discounted at 8% to be about $2,795. If we now assume that the cash flows occur at the beginning of the year, we can find the PV of the annuity due.

34 Copyright © 2009 Pearson Prentice Hall. All rights reserved PV = Annuity/Interest Rate PV = $1,000/.08 = $12,500 Present Value of a Perpetuity A perpetuity is a special kind of annuity. With a perpetuity, the periodic annuity or cash flow stream continues forever. For example, how much would I have to deposit today in order to withdraw $1,000 each year forever if I can earn 8% on my deposit?

35 Copyright © 2009 Pearson Prentice Hall. All rights reserved Future Value of a Mixed Stream

36 Copyright © 2009 Pearson Prentice Hall. All rights reserved Future Value of a Mixed Stream (cont.) Table 4.3 Future Value of a Mixed Stream of Cash Flows

37 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of a Mixed Stream Frey Company, a shoe manufacturer, has been offered an opportunity to receive the following mixed stream of cash flows over the next 5 years.

38 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of a Mixed Stream If the firm must earn at least 9% on its investments, what is the most it should pay for this opportunity? This situation is depicted on the following time line.

39 Copyright © 2009 Pearson Prentice Hall. All rights reserved Present Value of a Mixed Stream Table 4.4 Present Value of a Mixed Stream of Cash Flows

40 Copyright © 2009 Pearson Prentice Hall. All rights reserved Compounding Interest More Frequently Than Annually Compounding more frequently than once a year results in a higher effective interest rate because you are earning on interest on interest more frequently. As a result, the effective interest rate is greater than the nominal (annual) interest rate. Furthermore, the effective rate of interest will increase the more frequently interest is compounded.

41 Copyright © 2009 Pearson Prentice Hall. All rights reserved Compounding Interest More Frequently Than Annually (cont.) Fred Moreno has found an institution that will pay him 8% annual interest, compounded quarterly. If he leaves the money in the account for 24 months (2 years), he will be paid 2% interest compounded over eight periods. Table 4.5 Future Value from Investing $100 at 8% Interest Compounded Semiannually over 24 Months (2 Years)

42 Copyright © 2009 Pearson Prentice Hall. All rights reserved Compounding Interest More Frequently Than Annually (cont.) Table 4.6 Future Value from Investing $100 at 8% Interest Compounded Quarterly over 24 Months (2 Years)

43 Copyright © 2009 Pearson Prentice Hall. All rights reserved Compounding Interest More Frequently Than Annually (cont.) Table 4.7 Future Value at the End of Years 1 and 2 from Investing $100 at 8% Interest, Given Various Compounding Periods

44 Copyright © 2009 Pearson Prentice Hall. All rights reserved Compounding Interest More Frequently Than Annually (cont.) A General Equation for Compounding More Frequently than Annually

45 Copyright © 2009 Pearson Prentice Hall. All rights reserved Compounding Interest More Frequently Than Annually (cont.) A General Equation for Compounding More Frequently than Annually –Recalculate the example for the Fred Moreno example assuming (1) semiannual compounding and (2) quarterly compounding.

46 Copyright © 2009 Pearson Prentice Hall. All rights reserved FV n (continuous compounding) = PV x (e kxn ) where “e” has a value of Continuous Compounding With continuous compounding the number of compounding periods per year approaches infinity. Through the use of calculus, the equation thus becomes: Continuing with the previous example, find the Future value of the $100 deposit after 5 years if interest is compounded continuously.

47 Copyright © 2009 Pearson Prentice Hall. All rights reserved FV n (continuous compounding) = PV x (e kxn ) where “e” has a value of FVn = 100 x (2.7183).08x2 = $ Continuous Compounding (cont.) With continuous compounding the number of compounding periods per year approaches infinity. Through the use of calculus, the equation thus becomes:

48 Copyright © 2009 Pearson Prentice Hall. All rights reserved Nominal & Effective Annual Rates of Interest The nominal interest rate is the stated or contractual rate of interest charged by a lender or promised by a borrower. The effective interest rate is the rate actually paid or earned. In general, the effective rate > nominal rate whenever compounding occurs more than once per year

49 Copyright © 2009 Pearson Prentice Hall. All rights reserved Nominal & Effective Annual Rates of Interest (cont.) Fred Moreno wishes to find the effective annual rate associated with an 8% nominal annual rate (I =.08) when interest is compounded (1) annually (m=1); (2) semiannually (m=2); and (3) quarterly (m=4).

50 Copyright © 2009 Pearson Prentice Hall. All rights reserved Special Applications of Time Value: Deposits Needed to Accumulate to a Future Sum

51 Copyright © 2009 Pearson Prentice Hall. All rights reserved PMT = $30,000/5.637 = $5, Special Applications of Time Value: Deposits Needed to Accumulate to a Future Sum (cont.) Suppose you want to buy a house 5 years from now and you estimate that the down payment needed will be $30,000. How much would you need to deposit at the end of each year for the next 5 years to accumulate $30,000 if you can earn 6% on your deposits?

52 Copyright © 2009 Pearson Prentice Hall. All rights reserved Special Applications of Time Value: Loan Amortization Table 4.8 Loan Amortization Schedule ($6,000 Principal, 10% Interest, 4-Year Repayment Period)

53 Copyright © 2009 Pearson Prentice Hall. All rights reserved Ray Noble wishes to find the rate of interest or growth reflected in the stream of cash flows he received from a real estate investment over the period from 2002 through 2006 as shown in the table on the following slide. Special Applications of Time Value: Interest or Growth Rates At times, it may be desirable to determine the compound interest rate or growth rate implied by a series of cash flows.

54 Copyright © 2009 Pearson Prentice Hall. All rights reserved PVIF i,5yrs = PV/FV = ($1,250/$1,520) = PVIF i,5yrs = approximately 5% Special Applications of Time Value: Interest or Growth Rates (cont.)

55 Copyright © 2009 Pearson Prentice Hall. All rights reserved Ann Bates wishes to determine the number of years it will take for her initial $1,000 deposit, earning 8% annual interest, to grow to equal $2,500. Simply stated, at an 8% annual rate of interest, how many years, n, will it take for Ann’s $1,000 (PV n ) to grow to $2,500 (FV n )? Special Applications of Time Value: Finding an Unknown Number of Periods At times, it may be desirable to determine the number of time periods needed to generate a given amount of cash flow from an initial amount.

56 Copyright © 2009 Pearson Prentice Hall. All rights reserved PVIF 8%,n = PV/FV = ($1,000/$2,500) =.400 PVIF 8%,n = approximately 12 years Special Applications of Time Value: Finding an Unknown Number of Periods (cont.)

57 Copyright © 2009 Pearson Prentice Hall. All rights reserved Table 4.9 Summary of Key Definitions, Formulas, and Equations for Time Value of Money (cont.)

58 Copyright © 2009 Pearson Prentice Hall. All rights reserved Table 4.9 Summary of Key Definitions, Formulas, and Equations for Time Value of Money


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