Chapter 4 The Time Value of Money Chapter
- Slides: 95
Chapter 4 The Time Value of Money
Chapter Outline 4. 1 The Timeline 4. 2 The Three Rules of Time Travel 4. 3 The Power of Compounding 4. 4 Valuing a Stream of Cash Flows 4. 5 The Net Present Value of a Stream of Cash Flows 4. 6 Perpetuities, Annuities, and other Special Cases 2
Chapter Outline (cont’d) 4. 7 Solving Problems with a Spreadsheet Program 4. 8 Solving for Variables Other Than Present Value or Future Value 3
Learning Objectives 1. Draw a timeline illustrating a given set of cash flows. 2. List and describe three rules of time travel. 3. Calculate the future value of: a. b. c. d. A single sum. An uneven stream of cash flows, starting either now or sometime in the future. An annuity, starting either now or sometime in the future. Several cash flows occurring at regular intervals that grow at a constant rate each period. 4
Learning Objectives (cont'd) Calculate the present value of: 4. a. b. c. d. e. f. A single sum. An uneven stream of cash flows, starting either now or sometime in the future. An infinite stream of identical cash flows. An annuity, starting either now or sometime in the future. An infinite stream of cash flows that grow at a constant rate each period. Several cash flows occurring at regular intervals that grow at a constant rate each period. 5
Learning Objectives (cont'd) 5. Given four out of the following five inputs for an annuity, compute the fifth: (a) present value, (b) future value, (c) number of periods, (d) periodic interest rate, (e) periodic payment. 6. Given three out of the following four inputs for a single sum, compute the fourth: (a) present value, (b) future value, (c) number of periods, (d) periodic interest rate. 7. Given cash flows and present or future value, compute the internal rate of return for a series of cash flows. 6
4. 1 The Timeline n A timeline is a linear representation of the timing of potential cash flows. n Drawing a timeline of the cash flows will help you visualize the financial problem. 7
4. 1 The Timeline (cont’d) n Assume that you loan $10, 000 to a friend. You will be repaid in two payments, one at the end of each year over the next two years. 8
4. 1 The Timeline (cont’d) n Differentiate between two types of cash flows q q Inflows are positive cash flows. Outflows are negative cash flows, which are indicated with a – (minus) sign. 9
4. 1 The Timeline (cont’d) n Assume that you are lending $10, 000 today and that the loan will be repaid in two annual $6, 000 payments. n The first cash flow at date 0 (today) is represented as a negative sum because it is an outflow. n Timelines can represent cash flows that take place at the end of any time period. 10
Example 4. 1 11
Example 4. 1 (cont’d) 12
4. 2 Three Rules of Time Travel n Financial decisions often require combining cash flows or comparing values. Three rules govern these processes. 13
The 1 st Rule of Time Travel n A dollar today and a dollar in one year are not equivalent. n It is only possible to compare or combine values at the same point in time. q q Which would you prefer: A gift of $1, 000 today or $1, 210 at a later date? To answer this, you will have to compare the alternatives to decide which is worth more. One factor to consider: How long is “later? ” 14
The 2 nd Rule of Time Travel n To move a cash flow forward in time, you must compound it. q Suppose you have a choice between receiving $1, 000 today or $1, 210 in two years. You believe you can earn 10% on the $1, 000 today, but want to know what the $1, 000 will be worth in two years. The time line looks like this: 15
The 2 nd Rule of Time Travel (cont’d) n Future Value of a Cash Flow 16
Using a Financial Calculator: The Basics n TI BA II Plus q Future Value q Present Value q I/Y n Interest Rate per Year n Interest is entered as a percent, not a decimal q For 10%, enter 10, NOT. 10 17
Using a Financial Calculator: The Basics (cont'd) n TI BA II Plus q Number of Periods q 2 nd → CLR TVM n Clears out all TVM registers n Should do between all problems 18
Using a Financial Calculator: Setting the keys n TI BA II Plus q 2 ND → P/Y n q 2 ND → P/Y → # → ENTER n q Check P/Y Sets Periods per Year to # 2 ND → FORMAT → # → ENTER n Sets display to # decimal places 19
Using a Financial Calculator n TI BA II Plus q Cash flows moving in opposite directions must have opposite signs. 20
Financial Calculator Solution n Inputs: q q q n N=2 I = 10 PV = 1, 000 Output: q FV = − 1, 210 21
The 2 nd Rule of Time Travel— Alternative Example n To move a cash flow forward in time, you must compound it. q Suppose you have a choice between receiving $5, 000 today or $10, 000 in five years. You believe you can earn 10% on the $5, 000 today, but want to know what the $5, 000 will be worth in five years. The time line looks like this: 22
The 2 nd Rule of Time Travel— Alternative Example (cont’d) n In five years, the $5, 000 will grow to: q n $5, 000 × (1. 10)5 = $8, 053 The future value of $5, 000 at 10% for five years is $8, 053. You would be better off forgoing the gift of $5, 000 today and taking the $10, 000 in five years. 23
Financial Calculator Solution n Inputs: q q q n N=5 I = 10 PV = 5, 000 Output: q FV = – 8, 052. 55 24
The 3 rd Rule of Time Travel n To move a cash flow backward in time, we must discount it. n Present Value of a Cash Flow 25
Example 4. 2 26
Example 4. 2 (cont’d) 27
Example 4. 2 Financial Calculator Solution n Inputs: q q q n N = 10 I=6 FV = 15, 000 Output: q PV = – 8, 375. 92 28
The 3 rd Rule of Time Travel— Alternative Example n Suppose you are offered an investment that pays $10, 000 in five years. If you expect to earn a 10% return, what is the value of this investment? 29
The 3 rd Rule of Time Travel— Alternative Example (cont’d) n The $10, 000 is worth: q $10, 000 ÷ (1. 10)5 = $6, 209 30
Alternative Example: Financial Calculator Solution n Inputs: q q q n N=5 I = 10 FV = 10, 000 Output: q PV = – 6, 209. 21 31
Combining Values Using the Rules of Time Travel n Recall the 1 st rule: It is only possible to compare or combine values at the same point in time. So far we’ve only looked at comparing. q Suppose we plan to save $1000 today, and $1000 at the end of each of the next two years. If we can earn a fixed 10% interest rate on our savings, how much will we have three years from today? 32
Combining Values Using the Rules of Time Travel (cont'd) n The time line would look like this: 33
Combining Values Using the Rules of Time Travel (cont'd) 34
Combining Values Using the Rules of Time Travel (cont'd) 35
Combining Values Using the Rules of Time Travel (cont'd) 36
Example 4. 3 37
Example 4. 3 (cont'd) 38
Example 4. 3 Financial Calculator Solution 39
Combining Values Using the Rules of Time Travel—Alternative Example n Assume that an investment will pay you $5, 000 now and $10, 000 in five years. q The time line would like this: 40
Combining Values Using the Rules of Time Travel—Alternative Example (cont'd) n You can calculate the present value of the combined cash flows by adding their values today. The present value of both cash flows is $11, 209. 41
Combining Values Using the Rules of Time Travel—Alternative Example (cont'd) n You can calculate the future value of the combined cash flows by adding their values in Year 5. n The future value of both cash flows is $18, 053. 42
Combining Values Using the Rules of Time Travel—Alternative Example (cont'd) 43
4. 3 The Power of Compounding: An Application n Compounding q Interest on Interest n As the number of time periods increases, the future value increases, at an increasing rate since there is more interest on interest. 44
Figure 4. 1 The Power of Compounding 45
4. 4 Valuing a Stream of Cash Flows n Based on the first rule of time travel we can derive a general formula for valuing a stream of cash flows: if we want to find the present value of a stream of cash flows, we simply add up the present values of each. 46
4. 4 Valuing a Stream of Cash Flows (cont’d) n Present Value of a Cash Flow Stream 47
Example 4. 4 48
Example 4. 4 (cont'd) 49
Example 4. 4 Financial Calculator Solution 50
Future Value of Cash Flow Stream n Future Value of a Cash Flow Stream with a Present Value of PV 51
Future Value of Cash Flow Stream— Alternative Example n What is the future value in three years of the following cash flows if the compounding rate is 5%? 52
Future Value of Cash Flow Stream— Alternative Example (cont'd) n Or 53
4. 5 Net Present Value of a Stream of Cash Flows n Calculating the NPV of future cash flows allows us to evaluate an investment decision. n Net Present Value compares the present value of cash inflows (benefits) to the present value of cash outflows (costs). 54
Example 4. 5 55
Example 4. 5 (cont'd) 56
Example 4. 5 Financial Calculator Solution 57
4. 5 Net Present Value of a Stream of Cash Flows—Alternative Example n Would you be willing to pay $5, 000 for the following stream of cash flows if the discount rate is 7%? 58
Compute the Present Value of the Benefits and the Present Value of the Cost… n The present value of the benefits is: 3000 / (1. 05) + 2000 / (1. 05)2 + 1000 / (1. 05)3 = 5366. 91 n The present value of the cost is $5, 000, because it occurs now. n The NPV = PV(benefits) – PV(cost) = 5366. 91 – 5000 = 366. 91 59
Alternative Example Financial Calculator Solution n On a present value basis, the benefits exceed the costs by $366. 91. 60
4. 6 Perpetuities, Annuities, and Other Special Cases n When a constant cash flow will occur at regular intervals forever it is called a perpetuity. n The value of a perpetuity is simply the cash flow divided by the interest rate. n Present Value of a Perpetuity 61
Example 4. 6 62
Example 4. 6 (cont'd) 63
Annuities n When a constant cash flow will occur at regular intervals for N periods it is called an annuity. n Present Value of an Annuity 64
Example 4. 7 65
Example 4. 7 (cont'd) 66
Example 4. 7 (cont'd) n Future Value of an Annuity 67
Example 4. 7 Financial Calculator Solution n Since the payments begin today, this is an Annuity Due. q First, put the calculator on “Begin” mode: 68
Example 4. 7 Financial Calculator Solution (cont'd) q Then: n $15 million > $12. 16 million, so take the lump sum. 69
Example 4. 8 70
Example 4. 8 (cont'd) 71
Example 4. 8 Financial Calculator Solution n Since the payments begin in one year, this is an Ordinary Annuity. q Be sure to put the calculator back on “End” mode: 72
Example 4. 8 Financial Calculator Solution (cont'd) q Then 73
Growing Perpetuities n Assume you expect the amount of your perpetual payment to increase at a constant rate, g. n Present Value of a Growing Perpetuity 74
Example 4. 9 75
Example 4. 9 (cont'd) 76
Growing Annuities n The present value of a growing annuity with the initial cash flow c, growth rate g, and interest rate r is defined as: q Present Value of a Growing Annuity 77
Example 4. 10 78
Example 4. 10 (cont'd) 79
4. 7 Solving Problems with a Spreadsheet Program n Spreadsheets simplify the calculations of TVM problems q q q NPER RATE PV PMT FV 80
Example 4. 11 81
Example 4. 11 (cont'd) 82
Example 4. 12 83
Example 4. 12 (cont'd) 84
4. 8 Solving for Variables Other Than Present Values or Future Values n Sometimes we know the present value or future value, but do not know one of the variables we have previously been given as an input. For example, when you take out a loan you may know the amount you would like to borrow, but may not know the loan payments that will be required to repay it. 85
Example 4. 13 86
Example 4. 13 (cont'd) 87
4. 8 Solving for Variables Other Than Present Values or Future Values (cont’d) n In some situations, you know the present value and cash flows of an investment opportunity but you do not know the internal rate of return (IRR), the interest rate that sets the net present value of the cash flows equal to zero. 88
Example 4. 14 89
Example 4. 14 (cont'd) 90
Example 4. 15 91
Example 4. 15 (cont'd) 92
4. 8 Solving for Variables Other Than Present Values or Future Values (cont’d) n In addition to solving for cash flows or the interest rate, we can solve for the amount of time it will take a sum of money to grow to a known value. 93
Example 4. 16 94
Example 4. 16 (cont'd) 95
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