4 Evaluating Choices: Time, Risk, and Value
INTRODUCTION
Financial decisions can only be made about the future. As much as analysis may tell us about the outcomes of past decisions, the past is “sunk”: it can be known but not decided upon. Decisions are made about the future, which cannot be known with certainty, so evaluating alternatives for financial decisions always involves speculation on both the kind of result and the value of the result that will occur. It also involves understanding and measuring the risks or uncertainties that time presents and the opportunities—and opportunity costs—that time creates.
4.1 THE TIME VALUE OF MONEY
Learning Objectives
 Explain the value of liquidity.
 Demonstrate how time creates distance, risk, and opportunity cost.
 Demonstrate how time affects liquidity.
 Analyze how time affects value.
Part of the planning process is evaluating the possible future results of a decision. Since those results will occur sometime in the future, it is critical to understand how the passage of time may affect those benefits and costs—not only the probability of their occurrence, but also their value when they do. Time affects value because time affects liquidity.
Liquidity is valuable, and the liquidity of an asset affects its value: all things being equal, the more liquid an asset is, the more valuable it is. This relationship—how the passage of time affects the liquidity of money and thus its value—is commonly referred to as the time value of money, which can actually be calculated concretely as well as understood abstractly.
Suppose you went to Mexico, where the currency is the peso. Coming from Canada, you have dollars to spend. When you get there, you are hungry. You see and smell a taco stand and decide to have a taco. Before you can buy the taco, however, you have to get some pesos so that you can pay for it because the right currency is needed to trade in that market. You have wealth (your fistful of dollars), but you don’t have wealth that is liquid. In order to change your dollars into pesos and acquire liquidity, you need to exchange currency. There is a fee to exchange your currency: a transaction cost, which is the cost of simply making the trade. It also takes a bit of time, and you could be doing other things, so it creates an opportunity cost (see Chapter 2 “Basic Ideas of Finance”). There is also the chance that you won’t be able to make the exchange for some reason, or that it will cost more than you thought, so there is a bit of risk involved. Obtaining liquidity for your wealth creates transaction costs, opportunity costs, and risk.
In general, transforming notsoliquid wealth into liquid wealth creates transaction costs, opportunity costs, and risk, all of which take away from the value of wealth. Liquidity has value because it can be used without any additional costs.
One dimension of difference between notsoliquid wealth and liquidity is time. Cash flows in the past are sunk, cash flows in the present are liquid, and cash flows in the future are not yet liquid. You can only make choices with liquid wealth, not with cash that you don’t have yet or that has already been spent. Separated from your liquidity and your choices by time, there is an opportunity cost: if you had liquidity now, you could use it for consumption or investment and benefit from it now. There is also risk, as there is always some uncertainty about the future: whether or not you will actually get your cash flows and just how much they’ll be worth when you do.
The further in the future cash flows are, the farther away you are from your liquidity, the more opportunity cost and risk you have, and the more that takes away from the present value of your wealth, which is not yet liquid. In other words, time puts distance between you and your liquidity, and that creates costs that take away from value. The more time there is, the larger its effect on the value of wealth.
Financial plans are expected to happen in the future, so financial decisions are based on values some distance away in time. You could be trying to project an amount at some point in the future—perhaps an investment payout or college tuition payment. Or perhaps you are thinking about a series of cash flows that happen over time—for example, annual deposits into and then withdrawals from a retirement account. To really understand the time value of those cash flows, or to compare them in any reasonable way, you have to understand the relationships between the nominal or face values in the future and their equivalent present values (i.e., what their values would be if they were liquid today). The equivalent present values today will be less than the nominal or face values in the future because that distance over time, that separation from liquidity, costs us by discounting those values.
Key Takeaways
 Liquidity has value because it enables choice.
 Time creates distance or delay from liquidity.
 Distance or delay creates risk and opportunity costs.
 Time affects value by creating distance, risk, and opportunity costs.
 Time discounts value.
Exercises
 How does the expression “a bird in the hand is worth two in the bush” relate to the concept of the time value of money?
 In what four ways can “delay to liquidity” affect the value of your wealth?
4.2 CALCULATING THE RELATIONSHIP OF TIME AND VALUE
Learning Objectives
 Identify the factors you need to know to relate a present value to a future value.
 Write the algebraic expression for the relationship between present and future value.
 Discuss the use of the algebraic expression in evaluating the relationship between present and future values.
 Explain the importance of understanding the relationships among the factors that affect future value.
Financial calculation is not often a necessary skill since it is easier to use calculators, spreadsheets, and software. However, understanding the calculations is important in understanding the relationships between time, risk, opportunity cost, and value.
To do the math, you need to know:
 what the future cash flows will be,
 when the future cash flows will be, and
 the rate at which time affects value (e.g., the costs per time period, or the magnitude [the size or amount] of the effect of time on value).
It is usually not difficult to forecast the timing and amounts of future cash flows. Although there may be some uncertainty about them, gauging the rate at which time affects money can require some judgment. That rate, commonly called the discount rate because time discounts value, is the opportunity cost of not having liquidity. Opportunity cost derives from forgone choices or sacrificed alternatives, and sometimes it is not clear what those might have been (see Chapter 2 “Basic Ideas of Finance”). It is an important judgment call to make, though, because the rate will directly affect the valuation process.
At times, the alternatives are clear: you could be putting the liquidity in an account earning 3 per cent, so that’s your opportunity cost of not having it. Or you are paying 6.5 per cent on a loan, which you wouldn’t be paying if you had enough liquidity to avoid having to borrow; that’s your opportunity cost. Sometimes, however, your opportunity cost is not so clear.
Say that today is your twentieth birthday. Your grandparents have promised to give you $1,000 for your twentyfirst birthday, one year from today. If you had the money today, what would it be worth? That is, how much would $1,000 worth of liquidity one year from now be worth today?
That depends on the cost of its not being liquid today, or on the opportunity costs and risks created by not having liquidity today. If you had $1,000 today, you could buy things and enjoy them, or you could deposit it in an interestbearing account. So on your twentyfirst birthday, you would have more than $1,000—you would have the $1,000 plus whatever interest it had earned. If your bank pays 4 per cent per year (interest rates are always stated as annual rates) on your account, then you would earn $40 of interest in the next year, or $1,000 × .04. So, on your twentyfirst birthday you would have $1,040 as expressed in the equation below:
$1,000 + (1,000×0.04) = $1,000 × (1 + 0.04) = $1,040
Today 
Interest Rate 
Time (years) 
One Year from Now 
1,000 
0.04 
1 
1,040 = 1,000 × (1+0.04) 
If you left that amount in the bank until your twentysecond birthday, you would have
1,040 + (1,040 × 0.04) = 1,040 × (1 + 0.04) =
[1,000 × (1 + 0.04)] × (1 + 0.04) =
1,000 × (1+0.04)^{2 } = 1,081.60
To generalize the computation, if your present value (PV), is your value today, r is the rate at which time affects value or discount rate (in this case, your interest rate), and if t is the number of time periods between you and your liquidity, then the future value (FV) of your wealth is expressed in the following equation:
FV = PV × (1+r)^{t }
In this case, 1,000 × (1.04)^{1 }= 1,040 and 1,000 × (1+r)^{2 }= 1,081.60. Table 4.2.2 illustrates how present value, the interest rate, and time equate to future value.
Today 
Interest Rate 
Time (years) 
Equation 
1,000 
0.04 
1 
1,040 = 1,000 × (1+0.04)¹ 
1,000 
0.04 
2 
1,081.60 = 1,000 × (1+0.04)² 
PV 
r 
t 
FV = PV × (1+r)^{t} 
Assuming there is little chance that your grandparents will not be able to give this gift, there is negligible risk. Your only cost of not having liquidity now is the opportunity cost of having to delay consumption or not earning the interest you could have earned.
The cost of delayed consumption is largely derived from a subjective valuation of whatever is consumed, or its utility or satisfaction. The more value you place on having something, the more it “costs” you not to have it, and the more time that you are without it affects its value.
Assuming that if you had the money today you would save it, by having to wait until your twentyfirst birthday to receive it—and not having it today—you miss out on the $40 it could have earned.
So, what would that nominal $1,000 (that future value that you get one year from now) actually be worth today? The rate at which time affects your value is 4 per cent because that’s what having a choice (to spend or invest it) could earn for you if only you had received the $1,000. That’s your opportunity cost; that’s what it costs you to not have liquidity. Since PV × (1+r)^{t }= FV, then PV = FV/[(1+r)^{t}], so PV = 1,000/[(1.04)^{1}]= 961.5385.
Your gift is worth $961.5385 today (its present value). If your grandparents offered to give you your twentyfirst birthday gift on your twentieth birthday, they could give you $961.5385 today, which would be the equivalent value to you of getting $1,000 one year from now.
It is important to understand the relationships between time, risk, opportunity cost, and value. This equation describes that relationship:
PV × (1+r)^{t} = FV
The r is more formally called the “discount rate” because it is the rate at which your liquidity is discounted by time, and it includes not only opportunity costs, but also risk. (On some financial calculators, r is displayed as I or i.)
The t is how far away you are from your liquidity over time.
Studying this equation yields valuable insights into the relationship it describes. Looking at the equation, you can observe the following relationships:
The more time (t) separating you from your liquidity, the more time affects value. The less time separating you from your liquidity, the less time affects value (as t decreases, PV increases).
As t increases, the PV of your FV liquidity decreases.
As t decreases, the PV of your FV liquidity increases.
The greater the rate at which time affects value (r), or the greater the opportunity cost and risk, the more time affects value. The less your opportunity cost or risk, the less your value is affected.
As r increases, the PV of your FV liquidity decreases.
As r decreases, the PV of your FV liquidity increases.
Table 4.2.3 presents examples of these relationships.

Today 
Interest Rate 
Time (years) 
Future Value 
Example A 
1,000 
0.04 
1 
1,040 
Greater effect 
1,000 
0.10 
1 
1,100 
More time 
1,000 
0.04 
3 
1,124.86 
Less effect 
1,000 
0.01 
1 
1,010 
Less time 
1,000 
0.04 
0.5 
1,019.80 
Example B 
961.54 
0.04 
1 
1,000 
Greater effect 
909.09 
0.10 
1 
1,000 
More time 
889.00 
0.04 
3 
1,000 
Less effect 
990.10 
0.01 
1 
1,000 
Less time 
980.58 
0.04 
0.5 
1,000 
The strategy implications of this understanding are simple yet critical. All things being equal, it is more valuable to have liquidity (get paid, or have positive cash flow) sooner rather than later and give up liquidity (pay out, or have negative cash flow) later rather than sooner.
If possible, accelerate incoming cash flows and decelerate outgoing cash flows: get paid sooner, but pay out later. Or, as Popeye’s pal Wimpy used to say, “I’ll give you 50 cents tomorrow for a hamburger today.”
Please see the following TVM tables developed by Jodi Letkiewicz (York University), in order to practice calculating future value and present value. A sample of the first TVM table—Future Value of a Lump Sum ($1 at the end of t periods)—is illustrated below. Remember that FV = PV × (1+r)^{t}.
t 
1% 
2% 
3% 
4% 
5% 
6% 
7% 
8% 
9% 
10% 
1 
1.0100 
1.0200 
1.0300 
1.0400 
1.0500 
1.0600 
1.0700 
1.0800 
1.0900 
1.1000 
2 
1.0201 
1.0404 
1.0609 
1.0816 
1.1025 
1.1236 
1.1449 
1.1664 
1.1881 
1.2100 
3 
1.0303 
1.0612 
1.0927 
1.1249 
1.1576 
1.1910 
1.2250 
1.2597 
1.2950 
1.3310 
4 
1.0406 
1.0824 
1.1255 
1.1699 
1.2155 
1.2625 
1.3108 
1.3605 
1.4116 
1.4641 
5 
1.0510 
1.1041 
1.1593 
1.2167 
1.2763 
1.3382 
1.4026 
1.4693 
1.5386 
1.6105 
6 
1.0615 
1.1262 
1.1941 
1.2653 
1.3401 
1.4185 
1.5007 
1.5869 
1.6771 
1.7716 
7 
1.0721 
1.1487 
1.2299 
1.3159 
1.4071 
1.5036 
1.6058 
1.7138 
1.8280 
1.9487 
8 
1.0829 
1.1717 
1.2668 
1.3686 
1.4775 
1.5938 
1.7182 
1.8509 
1.9926 
2.1436 
9 
1.0937 
1.1951 
1.3048 
1.4233 
1.5513 
1.6895 
1.8385 
1.9990 
2.1719 
2.3579 
10 
1.1046 
1.2190 
1.3439 
1.4802 
1.6289 
1.7908 
1.9672 
2.1589 
2.3674 
2.5937 
11 
1.1157 
1.2434 
1.3842 
1.5395 
1.7103 
1.8983 
2.1049 
2.3316 
2.5804 
2.8531 
12 
1.1268 
1.2682 
1.4258 
1.6010 
1.7959 
2.0122 
2.2522 
2.5182 
2.8127 
3.1384 
13 
1.1381 
1.2936 
1.4685 
1.6651 
1.8856 
2.1329 
2.4098 
2.7196 
3.0658 
3.4523 
14 
1.1495 
1.3195 
1.5126 
1.7317 
1.9799 
2.2609 
2.5785 
2.9372 
3.3417 
3.7975 
15 
1.1610 
1.3459 
1.5580 
1.8009 
2.0789 
2.3966 
2.7590 
3.1722 
3.6425 
4.1772 
16 
1.1726 
1.3728 
1.6047 
1.8730 
2.1829 
2.5404 
2.9522 
3.4259 
3.9703 
4.5950 
17 
1.1843 
1.4002 
1.6528 
1.9479 
2.2920 
2.6928 
3.1588 
3.7000 
4.3276 
5.0545 
18 
1.1961 
1.4282 
1.7024 
2.0258 
2.4066 
2.8543 
3.3799 
3.9960 
4.7171 
5.5599 
19 
1.2081 
1.4568 
1.7535 
2.1068 
2.5270 
3.0256 
3.6165 
4.3157 
5.1417 
6.1159 
20 
1.2202 
1.4859 
1.8061 
2.1911 
2.6533 
3.2071 
3.8697 
4.6610 
5.6044 
6.7275 
View the complete TVM tables in PDF format at the following four links:
TVM Table 1: Future Value of a Lump Sum ($1 at the end of t periods)
TVM Table 2: Present Value of a Lump Sum ($1)
TVM Table 3: Present Value of a Series of Payments (Annuity) ($1)
TVM Table 4: Future Value of a Series of Payments (Annuity) ($1)
Key Takeaways
 To relate a present (liquid) value to a future value, you need to know:
• what the present value is or the future value will be,
• when the future value will be, and
• the rate at which time affects value: the costs per time period, or the magnitude of the effect of time on value.  The relationship of present value (PV), future value (FV), risk and opportunity cost (the discount rate, r), and time (t), may be expressed as: PV × (1 + r)^{t} = FV.
 The above equation yields valuable insights into these relationships:
• The more time (t) creates distance from liquidity, the more time affects value.
• The greater the rate at which time affects value (r), or the greater the opportunity cost and risk, the more time affects value.
• The closer the liquidity, the less time affects value.
• The less the opportunity cost or risk, the less value is affected.  To maximize value, get paid sooner and pay later.
Exercises
 In your financial planning journal, identify a future cash flow. Calculate its present value and then calculate its future value based on the discount rate and time to liquidity. Repeat the process for other future cash flows you identify. What pattern of relationships do you observe between time and value?
 Try the Time Value of Money calculator at MoneyZine. How do the results compare with your calculations in Exercise 1?
 View the TeachMeFinance.com animated audio slide show on “The Time Value of Money” (3:00) by Mark McCracken. This slide show will walk you through an example of how to calculate the present and future values of money. How is each part of the formula used in that lesson equivalent to the formula presented in this text?
 To have liquidity, when should you increase positive cash flows and decrease negative cash flows, and why?
4.3 VALUING A SERIES OF CASH FLOWS
Learning Objectives
 Discuss the importance of the idea of the time value of money in financial decisions.
 Define the present value of a series of cash flows.
 Define an annuity.
 Identify the factors you need to know to calculate the value of an annuity.
 Discuss the relationships of those factors to the annuity’s value.
 Define a perpetuity.
It is quite common in finance to value a series of future cash flows (CF), perhaps a series of withdrawals from a retirement account, interest payments from a bond, or deposits for a savings account. The present value of the series of cash flows is equal to the sum of the present value of each cash flow, so valuation is straightforward: find the present value of each cash flow and then add them up.
Often, the series of cash flows is such that each cash flow has the same future value. When there are regular payments at regular intervals and each payment is the same amount, that series of cash flows is an annuity. Most consumer loan repayments are annuities, as are, typically, installment purchases, mortgages, retirement investments, savings plans, and retirement plan payouts. Fixedrate bond interest payments are an annuity, as are stable stock dividends over long periods of time. You could think of your paycheque as an annuity, as are many living expenses, such as groceries and utilities, for which you pay roughly the same amount regularly.
To calculate the present value of an annuity, you need to know:
 the amount of the future cash flows (the same for each),
 the frequency of the cash flows,
 the number of cash flows (t), and
 the rate at which time affects value (r).
Almost any calculator and the many readily available software applications can do the math for you, but it is important for you to understand the relationships between time, risk, opportunity cost, and value.
If you win the lottery, for example, you are typically offered a choice of payouts for your winnings: a lump sum or an annual payment over twenty years.
The lottery agency would prefer that you took the annual payment because it would not have to give up as much liquidity all at once; it could hold on to its liquidity longer. To make the annual payment more attractive for you—it isn’t, because you would want to have more liquidity sooner—the lumpsum option is discounted to reflect the present value of the payment annuity. The discount rate, which determines that present value, is chosen at the discretion of the lottery agency.
Say you win $10 million. The lottery agency offers you a choice: take $500,000 per year over twenty years or take a onetime lumpsum payout of $6.7 million. You would choose the alternative with the greatest value. The present value of the lumpsum payout is $6.7 million. The value of the annuity is not simply $10 million, or $500,000 × 20, because those $500,000 payments are received over time and time affects liquidity and thus value. So, the question is: What is the annuity worth to you?
Your discount rate or opportunity cost will determine the annuity’s value to you, as Table 4.3.1 shows.
CF 
Rate (r) in Per Cent 
Time (t) in Years 
PV 
500,000 
0.0200 
20 
8,175,717 
500,000 
0.0400 
20 
6,795,163 
500,000 
0.0600 
20 
5,734,961 
500,000 
0.0800 
20 
4,909,074 
500,000 
0.1000 
20 
4,256,782 
500,000 
0.1200 
20 
3,734,722 
500,000 
0.1400 
20 
3,311,565 
500,000 
0.0416 
20 
6,700,000 
As expected, the present value of the annuity is less if your discount rate—or opportunity cost or nextbest choice—is more. The annuity would be worth the same to you as the lumpsum payout if your discount rate were 4.16 per cent.
In other words, if your discount rate is about 4 per cent or less—if you don’t have more lucrative choices than earning 4 per cent with that liquidity—then the annuity is worth more to you than the immediate payout. You can afford to wait for that liquidity and collect it over twenty years because you have no better choice. On the other hand, if your discount rate is higher than 4 per cent, or if you feel that your use of that liquidity would earn you more than 4 per cent, then you have more lucrative things to do with that money and you want it now: the annuity is worth less to you than the payout.
For an annuity, as when relating one cash flow’s present and future value, the greater the rate at which time affects value, the greater the effect on the present value. When opportunity cost or risk is low, waiting for liquidity doesn’t matter as much as when opportunity costs or risks are higher. When opportunity costs are low, you have nothing better to do with your liquidity, but when opportunity costs are higher, you may sacrifice more by having no liquidity. Liquidity is valuable because it allows you to make choices. After all, if there are no more valuable choices to make, you lose little by giving up liquidity. The higher the rate at which time affects value, the more it costs to wait for liquidity, and the more choices pass you by while you wait for liquidity.
When risk is low, it is not really important to have your liquidity firmly in hand any sooner because you’ll have it sooner or later anyhow. But when risk is high, getting liquidity sooner becomes more important because it lessens the chance of not getting it at all. The higher the rate at which time affects value, the more risk there is in waiting for liquidity and the more chance that you won’t get it at all.
As r increases, the PV of the annuity decreases.
As r decreases, the PV of the annuity increases.
You can also look at the relationship of time and cash flow to annuity value in Table 4.3.2 “Lottery Payout Present Values.” Suppose your payout was more (or less) each year, or suppose your payout happened over more (or fewer) years.
CF 
Rate 
Time 
PV 
500,000 
0.0400 
20 
6,795,163 
500,000 
0.0200 
20 
8,175,717 
500,000 
0.0600 
20 
5,734,961 
750,000 
0.0400 
20 
10,192,745 
250,000 
0.0400 
20 
3,397,582 
500,000 
0.0400 
30 
8,646,017 
500,000 
0.0400 
10 
4,055,448 
As seen in Table 4.3.2, the amount of each payment or cash flow affects the value of the annuity because more cash means more liquidity and greater value.
As CF increases, the PV of the annuity increases.
As CF decreases, the PV of the annuity decreases.
Although time increases the distance from liquidity, with an annuity, it also increases the number of payments because payments occur periodically. The more periods in the annuity, the more cash flows and the more liquidity there is, thus increasing the value of the annuity.
As t increases, the PV of the annuity increases.
As t decreases, the PV of the annuity decreases.
It is common in financial planning to calculate the FV of a series of cash flows. This calculation is useful when saving for a goal where a specific amount will be required at a specific point in the future (e.g., saving for university, a wedding, or retirement).
It turns out that the relationships between time, risk, opportunity cost, and value are predictable going forward as well. Say you decide to take the $500,000 annual lottery payout for twenty years. If you deposit that payout in a bank account earning 4 per cent, how much would you have in twenty years? What if the account earned more interest? Less interest? What if you won more (or less) so the payout was more (or less) each year?
What if you won $15 million and the payout was $500,000 per year for thirty years; how much would you have then? Or if you won $5 million and the payout was only for ten years? Table 4.3.3 shows how future values would change.
CF 
Rate 
Time 
PV 
FV 
500,000 
0.0400 
20 
6,795,163 
14,889,039 
500,000 
0.0200 
20 
8,175,717 
12,148,685 
500,000 
0.0600 
20 
5,734,961 
18,392,796 
750,000 
0.0400 
20 
10,192,745 
22,333,559 
250,000 
0.0400 
20 
3,397,582 
7,444,520 
500,000 
0.0400 
30 
8,646,017 
28,042,469 
500,000 
0.0400 
10 
4,055,448 
6,003,054 
Going forward, the rate at which time affects value (r) is the rate at which value grows, or the rate at which your value compounds. It is also called the rate of compounding. The bigger the effect of time on value, the more value you will end up with because more time has affected the value of your money while it was growing as it waited for you. So, looking forward at the future value of an annuity:
As r increases, the FV of the annuity increases.
As r decreases, the FV of the annuity decreases.
The amount of each payment or cash flow affects the value of the annuity because more cash means more liquidity and greater value. If you were getting more cash each year and depositing it into your account, you’d end up with more value.
As CF increases, the FV of the annuity increases.
As CF decreases, the FV of the annuity decreases.
The more time there is, the more time can affect value. As payments occur periodically, the more cash flows there are, and the more liquidity there is. The more periods in the annuity, the more cash flows, and the greater the effect of time, thus increasing the future value of the annuity.
As t increases, the FV of the annuity increases.
As t decreases, the FV of the annuity decreases.
There is also a special kind of annuity called a perpetuity, which is an annuity that goes on forever (i.e., a series of cash flows of equal amounts occurring at regular intervals that never ends). It is hard to imagine a stream of cash flows that never ends, but it is actually not as rare as it sounds. The dividends from a share of corporate stock are a perpetuity, because in theory, a corporation has an infinite life (as a separate legal entity from its shareholders or owners) and because, for many reasons, corporations like to maintain a steady dividend for their shareholders.
The perpetuity represents the maximum value of the annuity, or the value of the annuity with the most cash flows and therefore the most liquidity and therefore the most value.
Life Is a Series of Cash Flows
Once you understand the idea of the time value of money, and its use for valuing a series of cash flows, and the idea of annuities in particular, you won’t believe how you ever got through life without them. These are the fundamental relationships that structure so many financial decisions, most of which involve a series of cash inflows or outflows. Understanding these relationships can be a tool to help you answer some of the most common financial questions about buying and selling liquidity, because loans and investments are so often structured as annuities and certainly take place over time.
Loans are usually designed as annuities, with regular periodic payments that include interest expense and principal repayment. Using these relationships, you can see the effect of a different amount borrowed (PV_{annuity}), interest rate (r), or term of the loan (t) on the periodic payment (CF).
For example, as seen in Table 4.3.4 “Mortgage Calculations,” if you get a $250,000 (PV), thirtyyear (t), 6.5 per cent (r) mortgage, the monthly payment will be $1,577 (CF). If the same mortgage had an interest rate of only 5.5 per cent (r), your monthly payment would decrease to $1,423 (CF). If it were a fifteenyear (t) mortgage, still at 6.5 per cent (r), the monthly payment would be $2,175 (CF). If you can make a larger down payment and borrow less—say $200,000 (PV)—then with a thirtyyear (t), 6.5 per cent (r) mortgage your monthly payment would be only $1,262 (CF).
CF 
Rate (r) 
Time (t) 
PV 
1,577 
0.0054 
360 
250,000 
1,423 
0.0046 
360 
250,000 
2,175 
0.0054 
180 
250,000 
1,262 
0.0054 
360 
200,000 
Note that in Table 4.3.4, the mortgage rate is the monthly rate—that is, the annual rate divided by twelve (months in the year), or r / 12, and that t is stated as the number of months, or the number of years × 12 (months in the year). That is because the mortgage requires monthly payments, so all the variables must be expressed in units of months. In general, the periodic unit used is defined by the frequency of the cash flows and must agree for all variables. In this example, because you have monthly cash flows, you must calculate using the monthly discount rate (r) and the number of months (t).
Saving to reach a goal—to provide a down payment on a house, or a child’s education, or retirement income—is often accomplished by a plan of regular deposits to an account for that purpose. The savings plan is an annuity, so these relationships can be used to calculate how much would have to be saved each period to reach the goal (CF), or given how much can be saved each period, how long it will take to reach the goal (t), or how a better investment return (r) would affect the periodic savings, or the time needed (t), or the goal (FV).
For example, if you want to have $1 million (FV) in the bank when you retire, and your bank pays 3 per cent (r) interest per year, and you can save $10,000 per year (CF) toward retirement, can you afford to retire at age sixtyfive? You could if you start saving at age eighteen, because with that annual saving at that rate of return, it will take fortyseven years (t) to have $1,000,000 (FV). If you could save $20,000 per year (CF), it would only take thirtyone years (t) to save $1,000,000 (FV). If you are already forty years old, you could do it if you save $27,428 per year (CF) or if you can earn a return of at least 5.34 per cent (r). See Table 4.3.5.
CF 
Rate (r) 
Time (t) 
PV 
FV 
10,000 
0.0300 
47 
250,000 
1,000,000 
20,000 
0.0300 
31 
400,000 
1,000,000 
27,428 
0.0300 
25 
477,606 
1,000,000 
20,000 
0.0534 
25 
272,621 
1,000,000 
As you can see, the relationships between time, risk, opportunity cost, and value are some of the most important relationships you will ever encounter in life, and understanding them is critical to making sound financial decisions.
Financial Calculations
Modern tools make it much easier to do the math. Widely available calculators, spreadsheets, and software have been developed to be very user friendly.
Financial calculators have the equations relating the present and future values, cash flows, the discount rate, and time embedded, for single amounts or for a series of cash flows, so that you can calculate any one of those variables if you know all the others.
Personal finance software packages usually come with a planning calculator that performs a similar function. These tools are usually presented as a “mortgage calculator” or a “loan calculator” or a “retirement planner,” and they are set up to answer common planning questions such as, “How much do I have to save every year for retirement?” or, “What will my monthly loan payment be?”
Spreadsheets also have the relevant equations built in, as functions or as macros. There are also standalone software applications that may be downloaded to a mobile device, such as a smartphone. They are useful in answering planning questions, but they lack the ability to store and track your situation in the way that a more complete software package can.
The calculations are discussed here not so that you can perform them—you have many tools to choose from that can do that more efficiently—but so that you can understand them, and most importantly, so that you can understand the relationships that they describe.
Key Takeaways
 The idea of the time value of money is fundamental to financial decisions.
 The present value of a series of cash flows is equal to the sum of the present value of each cash flow.
 A series of cash flows is an annuity when there are regular payments at regular intervals and each payment is the same amount.
 To calculate the present value of an annuity, you need to know:
• the amount of the identical cash flows (CF),
• the frequency of the cash flows,
• the number of cash flows (t), and
• the discount rate (r) or the rate at which time affects value.  The calculation for the present value of an annuity yields valuable insights.
• The more time (t), the more periods and the more periodic payments—that is, the more cash flows, and so the more liquidity and the more value.
• The greater the cash flows, the more liquidity and the more value.
• The greater the rate at which time affects value (r) or the greater the opportunity cost and risk or the greater the rate of discounting, the more time affects value.  The calculation for the future value of an annuity yields valuable insights.
• The more time (t), the more periods and the more periodic payments—that is, the more cash flows, and so the more liquidity and the more value.
• The greater the cash flows, the more liquidity and the more value.
• The greater the rate at which time affects value (r) or the greater the rate of compounding, the more time affects value.  A perpetuity is an infinite annuity.
Exercises
 In your financial planning journal, identify and record all your cash flows. Calculate the present value of each. Then calculate the future value. Which cash flows give you the greatest liquidity or value?
 How can you determine if a lumpsum payment or an annuity will have greater value for you?
4.4 USING FINANCIAL STATEMENTS TO EVALUATE FINANCIAL CHOICES
Learning Objectives
 Define pro forma financial statements.
 Explain how pro forma financial statements can be used to project future scenarios for the planning process.
Now that you understand the relationship of time and value, especially looking forward, you can begin to think about how your ideas and plans will look as they happen. More specifically, you can begin to see how your future will look in the mirror of your financial statements. Projected or pro forma financial statements can show the consequences of your choices. To project future financial statements, you need to be able to envision the expected results of all the items on them. This can be difficult, for there can be many variables that may affect your income and expenses or cash flows, and some of them may be unpredictable. Predictions always contain uncertainty, so projections are always, at best, educated guesses. Still, they can be useful in helping you to see how the future may look.
For example, we can glimpse Brittany’s projected cash flow statements and balance sheets for each of her choices, along with their possible outcomes. Brittany can actually project how her financial statements will look after each choice is followed.
When making financial decisions, it is helpful to be able to think in terms of their consequences on the financial statements, which provide an order to our summary of financial results. For example, in previous chapters, Brittany was deciding how to decrease her debt. Her choices were to continue to pay it down gradually as she does now; to get a second job to pay it off faster; or to go to Vegas, hit it big (or lose big), and eliminate her debt altogether (or wind up with even more). Brittany can look at the effects of each choice on her financial statements as seen in Table 4.4.1.
Choices 
Income Statement 
Cash Flow Statement 
Balance Sheet 
Continue 
No new effects 
No new effects 
↓Debt 
Second job 
↑Income 
No new effect (increased cash flow from wages is used to pay debt) 
↓Debt faster 
Vegas: Win 
↑Expenses 
No new effect (increased cash flow from winnings is used to pay debt) 
Eliminate debt 
Vegas: Lose 
↑Expenses 
↓Net cash flow 
↑Debt 
Looking more closely at the actual numbers on each statement gives us a much clearer idea of Brittany’s situation. Beginning with the income statement, income will increase if she works a second job or goes to Vegas and wins, while expenses will increase (travel expense) if she goes to Vegas at all. Assume that her second job would bring in an extra $20,000 income and that she could win or lose $100,000 in Vegas. Any change in gross wages or winnings (losses) would have a tax consequence; if she loses in Vegas, she will still have income taxes on her salary. See Table 4.4.2.

Continue 
Second Job 
Vegas: Win 
Vegas: Lose 
For the Year Ending 
12/31/18 
12/31/18 
12/31/18 
12/31/18 
Gross wages 
44,650 
64,650 
144,650 
(55,350) 
Income taxes and deductions 
8,930 
12,930 
28,930 

Disposable income 
35,720 
51,720 
115,720 
(55,350) 
Rent 
10,800 
10,800 
10,800 
10,800 
Food 
3,900 
3,900 
3,900 
3,900 
Car expenses 
3,600 
3,600 
3,600 
3,600 
Clothing 
1,800 
1,800 
1,800 
1,800 
Cell phone 
1,200 
1,200 
1,200 
1,200 
Internet and cable TV 
1,200 
1,200 
1,200 
1,200 
Entertainment, travel, etc. 
2,700 
2,700 
3,700 
3,700 
Total living expenses 
25,200 
25,200 
26,200 
26,200 
Car loan interest 
240 
240 
240 
240 
Student loan interest 
4,240 
4,240 
4,240 
4,240 
Total interest expenses 
4,480 
4,480 
4,480 
4,480 
Net income 
6,040 
22,040 
85,040 
(86,030) 
While Vegas yields the largest increase in net income or personal profit if Brittany wins, it creates the largest decrease if she loses; it is clearly the riskiest option. The pro forma cash flow statements (shown in Table 4.4.3) reinforce this observation.

Continue 
Second Job 
Vegas: Win 
Vegas: Lose 
For the Year Ending 
12/31/18 
12/31/18 
12/31/18 
12/31/18 
Cash from gross wages 
44,650 
64,650 
44,650 
44,650 
Cash paid for: 

Income taxes and deductions 
(8,930) 
(12,930) 
(8,930) 
(8,930) 
Rent 
(10,800) 
(10,800) 
(10,800) 
(10,800) 
Food 
(3,900) 
(3,900) 
(3,900) 
(3,900) 
Car expenses 
(3,600) 
(3,600) 
(3,600) 
(3,600) 
Clothing 
(1,800) 
(1,800) 
(1,800) 
(1,800) 
Cell phone 
(1,200) 
(1,200) 
(1,200) 
(1,200) 
Internet and cable TV 
(1,200) 
(1,200) 
(1,200) 
(1,200) 
Entertainment, travel, etc. 
(2,700) 
(2,700) 
(3,700) 
(3,700) 
Car loan interest 
(240) 
(240) 
(240) 
(240) 
Student loan interest 
(4,240) 
(4,240) 
(4,240) 
(4,240) 
Operating cash flow 
6,040 
22,040 
5,040 
5,040 
Cash from gambling 
0 
0 
100,000 
(100,000) 
Cash for repayment of car loan 
(2,160) 
(2,160) 
(2,700) 
(2,160) 
Cash for repayment of student loan 
(3,480) 
(19,000) 
(53,000) 
(7,760) 
Proceeds from new loan 
0 
0 
0 
104,880 
Financing cash flows 
(5,640) 
(21,160) 
44,300 
(5,040) 
Net cash flow 
400 
880 
49,340 
0 
If Brittany has a second job, she will use the extra cash flow, after taxes, to pay down her student loan, leaving her with a bit more free cash flow than she would have had without the second job. If she wins in Vegas, she can pay off both her car loan and her student loan and still have an increased free cash flow. However, if she loses in Vegas, she will have to secure more debt to cover her losses. Assuming she borrows as much as she loses, she will have a small negative net cash flow and no free cash flow, and her other assets will have to make up for this loss of cash value.
So, how will Brittany’s financial condition look in one year? That depends on how she proceeds, but the pro forma balance sheets, as seen in Table 4.4.4, provide a glimpse.

Continue 
Second Job 
Vegas: Win 
Vegas: Lose 

12/31/19 
12/31/19 
12/31/19 
12/31/19 
Assets 

Car 
5,000 
5,000 
5,000 
5,000 
Savings 
650 
1,130 
49,590 
0 
Total assets 
5,650 
6,130 
54,590 
5,000 
Liabilities 

Car loan 
540 
540 
0 
540 
Student loan 
45,240 
34,000 
0 
45,240 
New loan 
0 
0 
0 
104,880 
Total liabilities 
45,780 
34,540 
0 
150,660 
Net worth 
(40,130) 
(28,410) 
54,590 
(145,660) 
If Brittany has a second job, her net worth increases but is still negative, as she has paid down more of her student loan than she otherwise would have, but it is still larger than her asset value. If she wins in Vegas, her net worth can be positive; with her loan paid off entirely, her asset value will equal her net worth. However, if she loses in Vegas, she will have to borrow more, her new debt quadrupling her liabilities and decreasing her net worth by that much more.
Table 4.4.5 provides a summary of the critical “bottom lines” from each pro forma statement and most clearly shows Brittany’s complete picture for each alternative.
Continue 
Second Job 
Vegas: Win 
Vegas: Lose 


12/31/19 
12/31/19 
12/31/19 
12/31/19 
Net income 
6,040 
22,040 
85,040 
(86,030) 
Net cash flow 
400 
880 
49,340 
(4,880) 
Net worth 
(40,130) 
(28,410) 
54,590 
(145,660) 
Going to Vegas creates the best and the worst scenarios for Brittany, depending on whether she wins or loses. While the outcomes for continuing or getting a second job are fairly certain, the outcome in Vegas is not; indeed, there are two possible outcomes. The Vegas choice has the most risk or the least certainty.
The Vegas alternative also has strategic costs: if she loses, her increased debt and its obligations—more interest and principal payments on more debt—will further delay her goal of building an asset base from which to generate new sources of income. In the near future, or until her new debt is repaid, she will have even fewer financial choices.
The strategic benefit of the Vegas alternative is that if she wins, she can eliminate debt, begin to build her asset base, and have even more choices (by eliminating debt and freeing cash flow).
The next step for Brittany would be to try to assess the probabilities of winning or losing in Vegas. Once she has determined the risk involved—given the consequences now illuminated in the pro forma financial statements—she would have to decide if she can tolerate that risk, or if she should reject that alternative because of its risk.
Key Takeaways
Pro forma financial statements show the consequences of financial choices in the context of the financial statements.
Exercises
 What are pro forma financial statements based on?
 What are the strategic benefits of making financial projections on pro forma statements?
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