1. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-0 Corporate Finance Ross  Westerfield  Jaffe Seventh Edition 7 Chapter Seven Net Present Value and Capital Budgeting

2. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-1 Chapter Outline 7.1 Incremental Cash Flows 7.2 The Baldwin Company: An Example 7.3 The Boeing 777: A Real-World Example 7.4 Inflation and Capital Budgeting 7.5 Investments of Unequal Lives: The Equivalent Annual Cost Method 7.6 Summary and Conclusions

3. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-2 7.1 Incremental Cash Flows Cash flows matter—not accounting earnings. Sunk costs don’t matter. Incremental cash flows matter. Opportunity costs matter. Side effects like cannibalism and erosion matter. Taxes matter: we want incremental after-tax cash flows. Inflation matters.

4. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-3 Cash Flows—Not Accounting Earnings. Consider depreciation expense. You never write a check made out to “depreciation”. Much of the work in evaluating a project lies in taking accounting numbers and generating cash flows.

5. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-4 Incremental Cash Flows Sunk costs are not relevant –Just because “we have come this far” does not mean that we should continue to throw good money after bad. Opportunity costs do matter. Just because a project has a positive NPV that does not mean that it should also have automatic acceptance. Specifically if another project with a higher NPV would have to be passed up we should not proceed.

6. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-5 Incremental Cash Flows Side effects matter. –Erosion and cannibalism are both bad things. If our new product causes existing customers to demand less of current products, we need to recognize that.

7. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-6 Estimating Cash Flows Cash Flows from Operations –Recall that: Operating Cash Flow = EBIT – Taxes + Depreciation Net Capital Spending –Don’t forget salvage value (after tax, of course). Changes in Net Working Capital –Recall that when the project winds down, we enjoy a return of net working capital.

8. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-7 Interest Expense Later chapters will deal with the impact that the amount of debt that a firm has in its capital structure has on firm value. For now, it’s enough to assume that the firm’s level of debt (hence interest expense) is independent of the project at hand.

9. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-8 Project Cash Flows T=0: Cost of new asset. –Sale of old asset. –Change in Net Working Capital. T=1,n: Operating Cash Flows (in the simplest case) T=n: Terminal Cash Flows –Salvage value –Change in Net Working Capital.

10. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-9 Modified ACRS Depreciation ClassExamples 3-YearEquipment used in research 5-YearAutos, computers 7-YearMost industrial equipment

11. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-10 Modified ACRS Depreciation Allowances Year3-year class5-year class7-year class 133.33%20.00%14.29% 244.44%32.00%24.49% 314.82%19.20%17.49% 47.41%11.52%12.49% 511.52%12.49% 65.76%8.93% 7 84.45%

12. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-11 Problem 7.3 The Best Manufacturing Company is considering a new investment. Financial projections for the investment are tabulated below. (Cash flows are in $ thousands and the corporate tax rate is 34 percent.) Year 0Year 1Year 2Year 3Year 4 Sales revenue7,000 Operating costs2,000 Investment-10,000 Depreciation2,500 NWC (End of year)2002503002000

13. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-12 Problem 7.3: Compute OCF Compute the incremental cash flow of the investment. OCF = (R-C-D)(1-T)+D The incremental cash flow is the same for each year. OCF = (7,000-2,000-2,500)(1-.34)+2,500=$4,150

14. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-13 Problem 7.3: Cash Flow from Assets CFA = OCF – Net Capital Spending – Net Working Capital Spending YearOCFAddition to assets Addition to NWC CFA 0010,000200-10,200 14,1500504,100 24,1500504,100 34,1500-1004,250 44,1500-2004,350

15. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-14 Problem 7.3: Compute NPV YearCFA 0-10,200 14,100 2 34,250 44,350 NPV(12%) = $2,518.78 NPV >0 Project is acceptable.

16. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-15 7.2 The Baldwin Company: An Example Costs of test marketing (already spent): $250,000. Current market value of proposed factory site (which we own): $150,000. Cost of bowling ball machine: $100,000 (depreciated according to ACRS 5-year life). Increase in net working capital: $10,000. Production (in units) by year during 5-year life of the machine: 5,000, 8,000, 12,000, 10,000, 6,000. Price during first year is $20; price increases 2% per year thereafter. Production costs during first year are $10 per unit and increase 10% per year thereafter. Annual inflation rate: 5% Working Capital: initially $10,000 changes with sales.

17. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-16 Depreciation Cost of machine = $100,000 Dep. %DepreciationBook Value End of Year Acc. Dep. Year 120%$20,000$80,000$20,000 Year 232%$32,000$48,000$52,000 Year 319.2%$19,200$28,800$71,200 Year 411.52%$11,520$17,280$82,720 Year 511.52%$11,520$5,760$94,240 Year 65.76%$5,7600$100,000

18. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-17 The Worksheet for Cash Flows of the Baldwin Company Year 0Year 1Year 2Year 3Year 4 Year 5 Investments: (1) Bowling ball machine–100.00 21.76* (2) Accumulated 20.0052.0071.2082.72 94.24 depreciation (3)Adjusted basis of 80.0048.0028.8017.28 5.76 machine after depreciation (end of year) (4)Opportunity cost–150.00 150.00 (warehouse) (5)Net working capital 10.00 10.0016.3224.9721.22 0 (end of year) (6)Change in net –10.00–6.32 –8.653.75 21.22 working capital (7)Total cash flow of–260.00 –6.32 –8.653.75 192.98 investment [(1) + (4) + (6)] * We assume that the ending market value of the capital investment at year 5 is $30,000. Capital gain is the difference between ending market value and adjusted basis of the machine. The adjusted basis is the original purchase price of the machine less depreciation. The capital gain is $24,240 (= $30,000 – $5,760). We will assume the incremental corporate tax for Baldwin on this project is 34 percent. Capital gains are now taxed at the ordinary income rate, so the capital gains tax due is $8,240 [0.34  ($30,000 – $5,760)]. The after-tax salvage value is $30,000 – [0.34  ($30,000 – $5,760)] = 21,760. ($ thousands) (All cash flows occur at the end of the year.)

19. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-18 Salvage Value Cash Flow from Salvage Value = Market Value – (Market Value – Book Value)*Tax Rate CF(SV) = MV- (MV-BV)*T At the end of year 5, the book value = $5,760. The machine can be sold for $30,000 and the tax rate is 34%. CF(SV) = $30,000 – ($30,000-$5,760)*.34 = $21,758.40

20. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-19 The Worksheet for Cash Flows of the Baldwin Company At the end of the project, the warehouse is unencumbered, so we can sell it if we want to. ($ thousands) (All cash flows occur at the end of the year.) Year 0Year 1Year 2Year 3Year 4 Year 5 Investments: (1) Bowling ball machine–100.00 21.76* (2) Accumulated 20.0052.0071.2082.72 94.24 depreciation (3)Adjusted basis of 80.0048.0028.8017.28 5.76 machine after depreciation (end of year) (4)Opportunity cost–150.00 150.00 (warehouse) (5)Net working capital 10.00 10.0016.3224.9721.22 0 (end of year) (6)Change in net –10.00–6.32 –8.653.75 21.22 working capital (7)Total cash flow of–260.00 –6.32 –8.653.75 192.98 investment [(1) + (4) + (6)]

21. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-20 Working Capital Year 0Year 1Year 2Year 3Year 4Year 5 Sales$100,000$163,000$249,720$212,200$129,900 NWC 10% of Sales $10,000 $16,300$24,720$21,2200 ΔNWC$10,0000$6,300$8,420-$3,500-$21,220 NWC initially increases by $10,000. In years 1-4, it is 10% of sales. The assumption is made that at the end of the project’s life (end of year 5), NWC goes back to its prior level. The row of changes in NWC should add to zero.

22. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-21 The Worksheet for Cash Flows of the Baldwin Company (continued) Year 0Year 1Year 2Year 3Year 4 Year 5 Income: (8) Sales Revenues100.00163.00249.72212.20 129.90 ($ thousands) (All cash flows occur at the end of the year.) Recall that production (in units) by year during 5-year life of the machine is given by: (5,000, 8,000, 12,000, 10,000, 6,000). Price during first year is $20 and increases 2% per year thereafter. Sales revenue in year 3 = 12,000×[$20×(1.02) 2 ] = 12,000×$20.81 = $249,720.

23. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-22 The Worksheet for Cash Flows of the Baldwin Company (continued) Year 0Year 1Year 2Year 3Year 4 Year 5 Income: (8) Sales Revenues100.00163.00249.72212.20 129.90 (9) Operating costs 50.00 88.00145.20 133.10 87.84 ($ thousands) (All cash flows occur at the end of the year.) Again, production (in units) by year during 5-year life of the machine is given by: (5,000, 8,000, 12,000, 10,000, 6,000). Production costs during first year (per unit) are $10 and (increase 10% per year thereafter). Production costs in year 2 = 8,000×[$10×(1.10) 1 ] = $88,000

24. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-23 The Worksheet for Cash Flows of the Baldwin Company (continued) Year 0Year 1Year 2Year 3Year 4 Year 5 Income: (8) Sales Revenues100.00163.00249.72212.20 129.90 (9) Operating costs 50.00 88.00145.20 133.10 87.84 (10) Depreciation 20.00 32.00 19.20 11.52 11.52 ($ thousands) (All cash flows occur at the end of the year.) Depreciation is calculated using the Accelerated Cost Recovery System (shown at right) Our cost basis is $100,000 Depreciation charge in year 4 = $100,000×(.1152) = $11,520. YearACRS % 120.00% 232.00% 319.20% 411.52% 511.52% 65.76% Total100.00%

25. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-24 The Worksheet for Cash Flows of the Baldwin Company (continued) Year 0Year 1Year 2Year 3Year 4 Year 5 Income: (8) Sales Revenues100.00163.00249.72212.20 129.90 (9) Operating costs 50.00 88.00145.20 133.10 87.84 (10) Depreciation 20.00 32.00 19.20 11.52 11.52 (11) Income before taxes 30.00 43.20 85.32 67.58 30.54 [(8) – (9) - (10)] (12) Tax at 34 percent 10.20 14.69 29.01 22.98 10.38 (13) Net Income 19.80 28.51 56.31 44.60 20.16 ($ thousands) (All cash flows occur at the end of the year.)

26. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-25 Incremental After Tax Cash Flows of the Baldwin Company Year 0Year 1Year 2Year 3Year 4Year 5 (1) Sales Revenues $100.00$163.00$249.72$212.20$129.90 (2) Operating costs -50.00-88.00-145.20133.10-87.84 (3) Taxes -10.20-14.69-29.01-22.98-10.38 (4) OCF (1) – (2) – (3) 39.8060.5175.5156.1231.68 (5) Total CF of Investment –260. –6.32–8.653.75192.98 (6) IATCF [(4) + (5)] –260.39.8054.1966.8659.87224.66

27. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-26 Total Cash Flow of Investment CFA = OCF – Net Capital Spending – Net Working Capital Spending CFA = OCF – Cash flow from investment Year 0Year 1Year 2Year 3Year 4Year 5 Capital Spending -100+21.76 NWC Spending -100-6.3-8.42+3.75+21.220 Opportunity Cost -150+150 CFFI-2600-6.3-8.42+3.75+192.98

28. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-27 NPV Baldwin Company 1 39.80 51,588.05 –260 CF1 F1 CF0 I NPV 10 1 54.19 CF2 F2 1 66.86 CF3 F3 1 59.87 CF4 F4 1 224.66 CF5 F5

29. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-28 7.3 Inflation and Capital Budgeting Inflation is an important fact of economic life and must be considered in capital budgeting. Consider the relationship between interest rates and inflation, often referred to as the Fisher relationship: (1 + Nominal Rate) = (1 + Real Rate) × (1 + Inflation Rate) For low rates of inflation, this is often approximated as Real Rate  Nominal Rate – Inflation Rate While the nominal rate in the U.S. has fluctuated with inflation, most of the time the real rate has exhibited far less variance than the nominal rate. When accounting for inflation in capital budgeting, one must compare real cash flows discounted at real rates or nominal cash flows discounted at nominal rates.

30. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-29 Example of Capital Budgeting under Inflation Sony International has an investment opportunity to produce a new stereo color TV. The required investment on January 1 of this year is $32 million. The firm will depreciate the investment to zero using the straight-line method. The firm is in the 34% tax bracket. The price of the product on January 1 will be $400 per unit. The price will stay constant in real terms. Labor costs will be $15 per hour on January 1. The will increase at 2% per year in real terms. Energy costs will be $5 per TV; they will increase 3% per year in real terms. The inflation rate is 5% Revenues are received and costs are paid at year-end.

31. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-30 Example of Capital Budgeting under Inflation The riskless nominal discount rate is 4%. The real discount rate for costs and revenues is 8%. Calculate the NPV. Year 1Year 2Year 3Year 4 Physical Production (units) 100,000200,000 150,000 Labor Input (hours) 2,000,000 Energy input, physical units 200,000

32. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-31 Example of Capital Budgeting under Inflation The depreciation tax shield is a risk-free nominal cash flow, and is therefore discounted at the nominal riskless rate. Cost of investment today = $32,000,000 Project life = 4 years Annual depreciation expense: Depreciation tax shield = $8,000,000 ×.34 = $2,720,000 $8,000,000 = $32,000,000 4 years 4 2,720,000 0 CF1 F1 CF0 9,873,315 I NPV 4

33. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-32 Year 1 After-tax Real Risky Cash Flows Risky Real Cash Flows –Price: $400 per unit with zero real price increase –Labor: $15 per hour with 2% real wage increase –Energy: $5 per unit with 3% real energy cost increase Year 1 After-tax Real Risky Cash Flows: After-tax revenues = $400 × 100,000 × (1 –.34) = $26,400,000 After-tax labor costs = $15 × 2,000,000 × 1.02 × (1 –.34) = $20,196,000 After-tax energy costs = $5 × 2,00,000 × 1.03 × (1 –.34) = $679,800 After-tax net operating CF = $26,400,000 – $20,196,000 – $679,800 = $5,524,200

34. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-33 Year 2 After-tax Real Risky Cash Flows Risky Real Cash Flows –Price: $400 per unit with zero real price increase –Labor: $15 per hour with 2% real wage increase –Energy: $5 per unit with 3% real energy cost increase Year 1 After-tax Real Risky Cash Flows: After-tax revenues = $400 × 100,000 × (1 –.34) = $26,400,000 After-tax labor costs = $15 × 2,000,000 × (1.02) 2 × (1 –.34) = $20,599,920 After-tax energy costs = $5 × 2,00,000 × (1.03) 2 × (1 –.34) = $700,194 After-tax net operating CF = $26,400,000 – $ 20,599,920– $ 700,194 = $ 31,499,886

35. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-34 Year 3 After-tax Real Risky Cash Flows Risky Real Cash Flows –Price: $400 per unit with zero real price increase –Labor: $15 per hour with 2% real wage increase –Energy: $5 per unit with 3% real energy cost increase Year 1 After-tax Real Risky Cash Flows: After-tax revenues = $400 × 100,000 × (1 –.34) = $26,400,000 After-tax labor costs = $15 × 2,000,000 × (1.02) 3 × (1 –.34) = $21,011.92 After-tax energy costs = $5 × 2,00,000 × (1.03) 3 × (1 –.34) = $721,199.82 After-tax net operating CF = $26,400,000 – $ 21,011.92– $ 721,199.82 = $31,066,882

36. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-35 Year 4 After-tax Real Risky Cash Flows Risky Real Cash Flows –Price: $400 per unit with zero real price increase –Labor: $15 per hour with 2% real wage increase –Energy: $5 per unit with 3% real energy cost increase Year 1 After-tax Real Risky Cash Flows: After-tax revenues = $400 × 100,000 × (1 –.34) = $26,400,000 After-tax labor costs = $15 × 2,000,000 × (1.02) 4 × (1 –.34) = $21,432.16 After-tax energy costs = $5 × 2,00,000 × (1.03) 4 × (1 –.34) = $742,835.82 After-tax net operating CF = $26,400,000 – $21,432.16– $742,835.82 = $17,425,007

37. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-36 Example of Capital Budgeting under Inflation $ 5,524,200 $ 31,499,886 $31,066,882 $17,425,007 -$32,000,000 0 1 2 34 1 5,524,000 –32 m CF1 F1 CF0 1 31,499,886 CF2 F2 1 31,066,882 CF3 F3 1 17,425,007 CF4 F4 69,590,868 I NPV 8

38. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-37 Example of Capital Budgeting under Inflation The project NPV can now be computed as the sum of the PV of the cost, the PV of the risky cash flows discounted at the risky rate and the PV of the risk-free cash flows discounted at the risk-free discount rate. NPV = –$32,000,000 + $69,590,868 + $9,873,315 = $47,464,183

39. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-38 7.3 The Boeing 777: A Real-World Example In late 1990, the Boeing Company announced its intention to build the Boeing 777, a commercial airplane that could carry up to 390 passengers and fly 7,600 miles. Analysts expected the up-front investment and R&D costs would be as much as $8 billion. Delivery of the planes was expected to begin in 1995 and continue for at least 35 years.

40. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-39 Table 7.5 Incremental Cash Flows: Boeing 777 YearUnits Sales Revenue Operating Costs Dep. Taxes  NWC Capital Spending Invest- ment Net Cash Flow 1991$865.00$40.00$(307.70)$400.00 $(957.30) 19921,340.0096.00(488.24)600.00 (1,451.76) 19931,240.00116.40(461.18)300.00 (1,078.82) 1994840.00124.76(328.02)200.00 (711.98) 199514$1,847.551,976.69112.28(82.08)  1.85182.91(229.97) 199614519,418.9617,865.45101.06493.83  19.421,741.42681.74 199714019,244.2316,550.0490.95885.10  19.422.301,806.79 Net Cash Flow can be determined in three steps: Taxes ($19,244.23 – $16,550.04 – $90.95)×0.34 = $885.10 Investment–$17.12 + $19.42 = $2.30 NCF $19,244.23 – $16,550.04 – $885.10 – $2.30 = $1,806.79

41. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-40 1991 $ (957.30)2002 $ 1,717.262013 $ 2,213.18 1992 $ (1,451.76)2003 $ 1,590.012014 $ 2,104.73 1993 $ (1,078.82)2004 $ 1,798.972015 $ 2,285.77 1994 $ (711.98)2005 $ 616.792016 $ 2,353.81 1995 $ (229.97)2006 $ 1,484.732017 $ 2,423.89 1996 $ 681.742007 $ 2,173.592018 $ 2,496.05 1997 $ 1,806.792008 $ 1,641.972019 $ 2,568.60 1998 $ 1,914.062009 $ 677.922020 $ 2,641.01 1999 $ 1,676.052010 $ 1,886.962021 $ 2,717.53 2000 $ 1,640.252011 $ 2,331.332022 $ 2,798.77 2001 $ 1,716.802012 $ 2,576.472023 $ 2,882.44 2024 $ 2,964.45 Year NCF

42. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-41 7.3 The Boeing 777: A Real-World Example Prior to 1990, Boeing had invested several hundred million dollars in research and development. Since these cash outflows were incurred prior to the decision to build the plane, they are sunk costs. The relevant costs were the at the time the decision was made were the forecasted Net Cash Flows

43. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-42 NPV Profile of the Boeing 777 Project This graph shows NPV as a function of the discount rate. Boeing should accept this project at discount rates less than 21 percent and reject the project at higher discount rates. IRR = 21.12%

44. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-43 Boeing 777 As it turned out, sales failed to meet expectations. In fairness to the financial analysts at Boeing, there is an important distinction between a good decision and a good outcome.

45. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-44 7.4 Investments of Unequal Lives: The Equivalent Annual Cost Method There are times when application of the NPV rule can lead to the wrong decision. Consider a factory which must have an air cleaner. The equipment is mandated by law, so there is no “doing without”. There are two choices: –The “Cadillac cleaner” costs $4,000 today, has annual operating costs of $100 and lasts for 10 years. –The “Cheapskate cleaner” costs $1,000 today, has annual operating costs of $500 and lasts for 5 years. Which one should we choose?

46. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-45 EAC with a Calculator At first glance, the Cheapskate cleaner has a lower NPV 10 –100 –4,614.46 –4,000 CF1 F1 CF0 I NPV 10 5 –500 –2,895.39 –1,000 CF1 F1 CF0 I NPV 10 Cadillac Air CleanerCheapskate Air Cleaner

47. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-46 7.4 Investments of Unequal Lives: The Equivalent Annual Cost Method This overlooks the fact that the Cadillac cleaner lasts twice as long. When we incorporate that, the Cadillac cleaner is actually cheaper.

48. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-47 7.4 Investments of Unequal Lives: The Equivalent Annual Cost Method The Cadillac cleaner time line of cash flows: -$4,000 –100 -100 -100 -100 -100 -100 -100 -100 -100 -100 0 1 2 3 4 5 6 7 8 9 10 -$1,000 –500 -500 -500 -500 -1,500 -500 -500 -500 -500 -500 0 1 2 3 4 5 6 7 8 9 10 The Cheapskate cleaner time line of cash flows over ten years:

49. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-48 The Equivalent Annual Cost Method When we make a fair comparison, the Cadillac is cheaper: 10 –100 –4,614.46 –4,000 CF1 F1 CF0 I NPV 10 4 –500 –4,693 –1,000 CF1 F1 CF0 I NPV 10 Cadillac Air CleanerCheapskate Air Cleaner 1 –1,500 CF2 F1 5 –500 CF3 F1

50. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-49 Investments of Unequal Lives Replacement Chain –Repeat the projects forever, find the PV of that perpetuity. –Assumption: Both projects can and will be repeated. Matching Cycle –Repeat projects until they begin and end at the same time—like we just did with the air cleaners. –Compute NPV for the “repeated projects”. The Equivalent Annual Cost Method

51. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-50 Investments of Unequal Lives: EAC The Equivalent Annual Cost Method Applicable to a much more robust set of circumstances than replacement chain or matching cycle. The Equivalent Annual Cost is the value of the level payment annuity that has the same PV as our original set of cash flows. NPV = EAC × A r T Where A r T is the present value of $1 per period for T periods when the discount rate is r. –For example, the EAC for the Cadillac air cleaner is $750.98 –The EAC for the cheaper air cleaner is $763.80 which confirms our earlier decision to reject it.

52. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-51 Cadillac EAC with a Calculator Use the cash flow menu to find the PV of the “lumpy” cash flows. Then use the time value of money keys to find a payment with that present value. 10 –100 –4,614.46 –4,000 CF1 F1 CF0 I NPV 10 750.98 10 –4,614.46 10 PMT I/Y FV PV N

53. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-52 Cheapskate EAC with a Calculator Use the cash flow menu to find the PV of the cash flows. Then use the time value of money keys to find a payment with that present value. 5 –500 –4,693.21 –1,000 CF1 F1 CF0 I NPV 10 763.80 10 –4,693.21 10 PMT I/Y FV PV N

54. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-53 Example of Replacement Projects Consider a Belgian Dentist’s office; he needs an autoclave to sterilize his instruments. He has an old one that is in use, but the maintenance costs are rising and so is considering replacing this indispensable piece of equipment. New Autoclave –Cost = $3,000 today, –Maintenance cost = $20 per year –Resale value after 6 years = $1,200 –NPV of new autoclave (at r = 10%) is $2,409.74 EAC of new autoclave = -$553.29

55. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-54 Example of Replacement Projects Existing Autoclave Year012345 Maintenance 0200275325450500 Resale900850775700600500 Total Annual Cost Total Cost for year 1 = (900 × 1.10 – 850) + 200 = $340 340 435 Total Cost for year 2 = (850 × 1.10 – 775) + 275 = $435 478 Total Cost for year 3 = (775 × 1.10 – 700) + 325 = $478 620 Total Cost for year 4 = (700 × 1.10 – 600) + 450 = $620 Total Cost for year 5 = (600 × 1.10 – 500) + 500 = $660 660 Note that the total cost of keeping an autoclave for the first year includes the $200 maintenance cost as well as the opportunity cost of the foregone future value of the $900 we didn’t get from selling it in year 0 less the $850 we have if we still own it at year 1.

56. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-55 Example of Replacement Projects 340 435478620660  New Autoclave  EAC of new autoclave = -$553.29  Existing Autoclave Year012345 Maintenance 0200275325450500 Resale900850775700600500 Total Annual Cost We should keep the old autoclave until it’s cheaper to buy a new one. Replace the autoclave after year 3: at that point the new one will cost $553.29 for the next year’s autoclaving and the old one will cost $620 for one more year.

57. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-56 7.5 Summary and Conclusions Capital budgeting must be placed on an incremental basis. –Sunk costs are ignored –Opportunity costs and side effects matter Inflation must be handled consistently –Discount real flows at real rates –Discount nominal flows at nominal rates. When a firm must choose between two machines of unequal lives: –the firm can apply either the matching cycle approach –or the equivalent annual cost approach.

58. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-57 Dorm Beds Example Consider a project to supply the University of Missouri with 10,000 dormitory beds annually for each of the next 3 years. Your firm has half of the woodworking equipment to get the project started; it was bought years ago for $200,000: is fully depreciated and has a market value of $60,000. The remaining $60,000 worth of equipment will have to be purchased. The engineering department estimates you will need an initial net working capital investment of $10,000.

59. McGraw-Hill/Irwin Copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved. 7-58 Dorm Beds Example The project will last for 3 years. Annual fixed costs will be $25,000 and variable costs should be $90 per bed. The initial fixed investment will be depreciated straight line to zero over 3 years. It also estimates a (pre-tax) salvage value of $10,000 (for all of the equipment). The marketing department estimates that the selling price will be $200 per bed. You require an 8% return and face a marginal tax rate of 34%. Compute the NPV.