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RISK ANALYSIS IN CAPITAL BUDGETING Discuss the concept of risk in investment decisions. Understand some commonly used techniques, i.e., payback, certainty equivalent and risk-adjusted discount rate, of risk analysis in capital budgeting. Focus on the need and mechanics of sensitivity analysis and scenario analysis. Highlight the utility and methodology simulation analysis. Explain the decision tree approach in sequential investment decisions. Focus on the relationship between utility theory and capital budgeting decisions. 1

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Page 1: 1 risk analysis in capital budgeting

RISK ANALYSIS IN CAPITAL BUDGETING

Discuss the concept of risk in investment decisions. Understand some commonly used techniques, i.e., payback,

certainty equivalent and risk-adjusted discount rate, of risk analysis in capital budgeting.

Focus on the need and mechanics of sensitivity analysis and scenario analysis.

 Highlight the utility and methodology simulation analysis. Explain the decision tree approach in sequential investment

decisions. Focus on the relationship between utility theory and capital

budgeting decisions.

1

Page 2: 1 risk analysis in capital budgeting

Nature of Risk

Risk exists because of the inability of the decision-maker to make perfect forecasts.

In formal terms, the risk associated with an investment may be defined as the variability that is likely to occur in the future returns from the investment.

Three broad categories of the events influencing the investment forecasts: General economic conditions Industry factors Company factors

2

Page 3: 1 risk analysis in capital budgeting

TECHNIQUES FOR RISK ANALYSIS

Techniques of riskanalysis

Analysis of stand-alone risk

Analysis of contextual risk

Sensitivityanalysis

Break-evenanalysis

Simulationanalysis

Scenarioanalysis

Corporate risk analysis

Market riskanalysis

Hilliermodel

Decision treeanalysis

Page 4: 1 risk analysis in capital budgeting

Techniques for Risk Analysis

Statistical Techniques for Risk Analysis Probability Variance or Standard Deviation Coefficient of Variation

Conventional Techniques of Risk Analysis Payback Risk-adjusted discount rate Certainty equivalent

4

Page 5: 1 risk analysis in capital budgeting

Probability

A typical forecast is single figure for a period. This is referred to as “best estimate” or “most likely” forecast: Firstly, we do not know the chances of this figure actually occurring, i.e.,

the uncertainty surrounding this figure. Secondly, the meaning of best estimates or most likely is not very clear. It

is not known whether it is mean, median or mode.

For these reasons, a forecaster should not give just one estimate, but a range of associated probability–a probability distribution.

Probability may be described as a measure of someone’s opinion about the likelihood that an event will occur.

5

Page 6: 1 risk analysis in capital budgeting

Assigning Probability  

The probability estimate, which is based on a very large number of observations, is known as an objective probability.

Such probability assignments that reflect the state of belief of a person rather than the objective evidence of a large number of trials are called personal or subjective probabilities.

6

Page 7: 1 risk analysis in capital budgeting

Risk and Uncertainty

Risk is referred to a situation where the probability distribution of the cash flow of an investment proposal is known.

If no information is available to formulate a probability distribution of the cash flows the situation is known as uncertainty.

7

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Expected Net Present Value Once the probability assignments have been made to

the future cash flows the next step is to find out the expected net present value.

Expected net present value = Sum of present values of expected net cash flows.

8

= 0

ENPV = (1 )

n

tt

ENCF

k

ENCF = NCF × t jt jtP

Page 9: 1 risk analysis in capital budgeting

Example

Suppose an investment project has a life of three years, and it would involve an initial cost of Rs 10,000.

If the discount rate is 15 per cent, calculate the expected NPV.

9

Expected Cash Flow

Page 10: 1 risk analysis in capital budgeting

Example10

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Variance or Standard Deviation Variance measures the deviation about expected cash

flow of each of the possible cash flows. Standard deviation is the square root of variance.

Absolute Measure of Risk.

11

2 2

=1

(NCF) = (NCF – ENCF)n

j jj

P

Page 12: 1 risk analysis in capital budgeting

Coefficient of Variation

Coefficient of variation is relative Measure of Risk.

It is defined as the standard deviation of the probability distribution divided by its expected value:

Coefficient of variation = standard deviation / expected value

12

Page 13: 1 risk analysis in capital budgeting

Coefficient of Variation

The coefficient of variation is a useful measure of risk when we are comparing the projects which have

same standard deviations but different expected values, or different standard deviations but same expected values, or different standard deviations and different expected values.

13

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Exercise14

The following information is available regarding the expected cash flows generated, and their probability for company X. What is the expected return on the project? Assuming 10 per cent as the discount rate, find out the present values of the expected monetary values.

Year 1 Year 2 Year 3

Cash flows Probability Cash flows Probability Cash flows Probability 

Rs 3,0006,0008,000

0.250.500.25

Rs 3,0006,0008,000

0.500.250.25

Rs 3,0006,0008,000

0.250.250.50

Page 15: 1 risk analysis in capital budgeting

Solution15

TABLE 3  (i) Calculation of Expected Monetary Values

Year 1 Year 2 Year 3

Cash flows

Probability

Monetary values

Cash flows

Probability

values

Monetary Cash flows

Probability

values

Monetary

Rs 3,0006,0008,000Total

0.250.500.25

Rs 7503,0002,0005,750

Rs 3,0006,0008,000

0.500.250.25

Rs 1,5001,5002,0005,000

Rs 3,0006,0008,000

0.250.250.50

Rs 750

1,5004,0006,250

(ii) Calculation of Present Values

Year 1 Rs 5,750 × 0.909 = Rs 5,226.75

Year 2 5,000 × 0.826 4,130.00

Year 3 6,250 × 0.751 4,693.75

Total 14,050.50

Page 16: 1 risk analysis in capital budgeting

HILLIER MODEL

Uncorrelated Cash Flows

n Ct

NPV = – I t = 1 (1 + i)t

n t2 ½

(NPV) = t = 1 (1 + i)2t

Perfectly Correlated Cash Flows

n Ct

NPV = – I t = 1 (1 + i) t

n t

(NPV) = t = 1 (1 + i)t

Page 17: 1 risk analysis in capital budgeting

HILLIER MODELIndependent Cash Flows Over Time  The mathematical formulation to determine the expected values of the probability distribution of NPV for any project is:

The above calculations of the standard deviation and the NPV will produce significant volume of information for evaluating the risk of the investment proposal. The calculations are illustrated in Example 6.

(8)m

1j jt.P

2

tCFjt

CFtσ

:follows as calculated be would

tα t, periodfor flows cash expected of ondistributi yprobabilit the of deviation standard the is tα where

(7)n

1t 2ti1

σ2tNPVσ

to equal isNPV of ondistributi yprobabilit the of deviation standard Theinterest. of rate riskless the is i andt period in CFATnet of value expected the is CF where

(6)n

1tCOti1

tCFNPV

Page 18: 1 risk analysis in capital budgeting

Example 6

Suppose there is a project which involves initial cost of Rs 20,000 (cost at t =

0). It is expected to generate net cash flows during the first 3 years with the

probability as shown in Table 7.

TABLE 7  Expected Cash Flows

Year 1 Year 2 Year 3

Probability Net cash

flows

Probability Net cash

flows

Probability Net cash

flows 

0.10 Rs 6,000 0.10 Rs 4,000 0.10 Rs 2,000

0.25 8,000 0.25 6,000 0.25 4,000

0.30 10,000 0.30 8,000 0.30 6,000

0.25 12,000 0.25 10,000 0.25 8,000

0.10 14,000 0.10 12,000 0.10 10,000

Page 19: 1 risk analysis in capital budgeting

Solution

1 . Expected Values: For the calculation of standard deviation for different periods, the expected values are to be calculated first. These are calculated in Table 8.

(3) NPV= Rs 10,000 (0.909) + Rs 8,000 (0.826) + Rs 6,000 (0.751) – Rs 20,000 = Rs 204.

2,280. Rs to out workalso )σ and (σ 3 and 2 periods for deviations standard the lines similar on calculated When

Rs2,280]10,00014,0000.1010,00012,0000.25

10,00010,0000.3010,0008,0000.2510,0006,000[0.10σ

:is 1 period for deviation standard the Thus,

.PCFCFσ

: isflow cash net posible of deviation standard The (ii)

32

22

222

1

m

1jjt

2

tjtt

Page 20: 1 risk analysis in capital budgeting

Calculation of Expected Values of Each Period

 Time period

 

Probability(1)

Net cash flow(2)

Expected value (1 × 2)(3)

Year 1

Year 2

Year 3

0.100.250.300.250.10

0.100.250.300.250.10

0.100.250.300.250.10

Rs 6,0008,000

10,00012,00014,000

4,0006,0008,000

10,00012,000

2,0004,0006,0008,000

10,000

Rs 6002,0003,0003,0001,400

= 10,000400

1,5002,4002,5001,200

= 8,000200

1,0001,8002,0001,000

= 6,000

1CF

2CF

3CF

3,283Rs1.10

2,280Rs

1.10

2,280Rs

1.10

2,280Rs

i1σ

:time over flows cash of ceindependen of assumption the under deviation standard (iv)The

6

2

4

2

2

2n

1t2t

2

Page 21: 1 risk analysis in capital budgeting

Normal Probability Distribution  

We can make use of the normal probability distribution to further analyze the element of risk in capital budgeting. The use of the normal probability distribution will enable the decision maker to have an idea of the probability of different expected values of NPV, that is, the probability of NPV having the value of zero or less; greater than zero and within the range of two values, say, Rs 1,000 and Rs 1,500 and so on.

The normal probability distribution as shown in Figure has a number of useful properties.

The area under the normal curve, representing the normal probability distribution, is equal to 1 (0.5 on either side of the mean). The curve has its maximum height at its expected value (mean). The distribution (curve) theoretically runs from minus infinity to plus infinity. The probability of occurrence beyond 3σs is very near zero (0.26 per cent).

-3σ -2σ -1σ X +1σ +2σ +3σ

99.74%

95.46%

Normal Curve

68.26%

Page 22: 1 risk analysis in capital budgeting

Example

Assume that a project has a mean of Rs 40 and standard deviation of Rs 20. The management wants to determine the probability of the NPV under the following ranges: (i) Zero or less, (ii) Greater than zero, (iii) Between the range of Rs 25 and Rs 45, (iv) Between the range of Rs 15 and Rs 30.

Solution

(i) Zero or less: The first step is to determine the difference between the expected outcome X and the expected net present value. The second step is to standardize the difference (as obtained in the first step) by the standard deviation of the possible net present values. Then, the resultant quotient is to be seen in statistical tables of the area under the normal curve. Such a table (Table Z) is given at the end of the book. The table contains values for various standard normal distribution functions. Z is the value which we obtain through the first two steps, that is:

This is also illustrated in Fig. 3.

The figure of –2 indicates that a NPV of 0 lies 2 standard deviation to the left of the expected value of the probability distribution of possible NPV. Table Z indicates that the probability of the value within the range of 0 to 40 is 0.4772. Since the area of the left-hand side of the normal curve is equal to 0.5, the probability of NPV being zero or less would be 0.0228, that is, 0.5 – 0.4772. It means that there is 2.28 per cent probability that the NPV of the project will be zero or less.

0.220Rs

40Rs0Z

Page 23: 1 risk analysis in capital budgeting

-20

Figure 3

Expected Outcomes (X Values)

0 +20 +40 +60 +80 +100

Co

nti

nu

ou

s P

rob

ab

ilit

y d

istr

ibu

tio

n

• •

••

Page 24: 1 risk analysis in capital budgeting

Exercise

The Cautious Ltd is considering a proposal for the purchase of a new machine requiring an outlay of Rs 1,500 lakh. Its estimate of the cash flow distribution for the three-year life of the machine is given below (amount in Rs lakh):

Period 1 Period 2 Period 3

Cash flows Probability Cash flows Probability Cash flows Probability

Rs 800 0.1 Rs 800 0.1 Rs 1,200 0.2

600 0.2 700 0.3 900 0.5

400 0.4 600 0.4 600 0.2

200 0.3 500 0.2 300 0.1

The probability distribution is assumed to be independent. Risk-free rate of interest is 5 per cent. From the above information, determine the following: (i) the expected NPV of the project; (ii) the standard deviation of the probability distribution of NPV; (iii) the probability that the NPV will be (a) zero or less (assuming that the distribution is normal); (b) greater than zero; and (c) at least equal to the mean; (iv) the profitability index of the expected value; and (v) the probability that the profitability index will be less than 1.

Page 25: 1 risk analysis in capital budgeting

Table 9 Determination of Expected NPV (Rs lakh)

Period 1 Period 2 Period 3

 CF Pj Cash flow CF Pj Cash flow CF Pj Cash flow

(CF × Pj) (CF × Pj) (CF × Pj)

 800 0.1 80 800 0.1 80 1,200 0.2 240

 600 0.2 120 700 0.3 210 900 0.5 450

 400 0.4 160 600 0.4 240 600 0.2 120

 200 0.3 60 500 0.2 100 300 0.1 30

Mean ( ) 420 Mean ( ) 630 Mean ( ) 840

NPV = Rs 420 (0.952) + Rs 630 (0.907) + Rs 840 (0.864) – Rs 1,500 = Rs 197 lakh.

1CF 2CF 3CF

Page 26: 1 risk analysis in capital budgeting

12 - 26

18835,6001

σ

35,600 j1

P2)1

CF- j1

Σ(CF

14,520 0.3 x 48,400160 0.4 x 400

6,480 0.2 x 32,40014,440 Rs 0.1 x 1,44,400 Rs

j1P2)

1CF-

j1(CF

j1(x)P 2)

1CF

j1(CF

:t Period, forflow Cash Expected of Deviation Standard (ii)

1 Period

908,1002

σ

8,100 j2

P2)2

CF-j2

Σ(CF

3,380 0.2 x 16,900 x 9001,470 0.3 x 4,900

2,890 Rs 0.1 x 28,900 Rsj2

P2)2

CF- j2

(CF j2

(x)P 2)2

CF-j2

(CF

2 Period

Page 27: 1 risk analysis in capital budgeting

262684003

σ

68400 j3

P2)3

CF-j3

Σ(CF

29,160 0.1 x 2,91,60011,520 0.2 x 57,6001,800 0.5 x 3,600

25,920 Rs 0.2 x 1,29,600 Rsj3

P2)3

CF- j3

(CF j3

(x)P 2)3

CF-j3

(CF

3 Period

300Rs1.34068,400 Rs

1.216Rs81,00

1.10235,520 Rs

60.05)(1

2262Rs40.05)(1

290Rs20.05)(1

2188Rsn

1t 2ti1

σ2tσ(NPV)

:NPV about deviation standard of nCalculatio

Page 28: 1 risk analysis in capital budgeting

(iii) (a) Calculation of Probability of the NPV Being Zero or Less: Z = [(0-197)/300]=-.6567

According to Table Z, the probability of the NPV being zero is = 0.2454, that is, 24.54 per cent. Therefore, the probability of the NPV being zero or less would be 0.5 – 0.2454 = 0.2546 or 25.46 per cent.

(b)The probability of the NPV being greater than zero would be 1 – 0.2546 = 0.7454 or 74.54 per cent

(c)At least equal to mean: Z = [(197-197)/300] = 0

Reading from the normal distribution table, we get the probability corresponding to 0 as 0. Therefore, the probability of having NPV at least equal to mean would be equivalent to the area to the right of the curve, that is, 0.5 = 50 per cent.

(iv) Profitability Index: (PV of cash inflows/PV of cash outflows) = [(Rs 197 + Rs 1,500) / Rs 1,500] = 1.13

(v) The probability of the index being less than 1: For the index to be 1 or less, the NPV would have to be zero or negative. Thus, the probability would be equal to 25.46 per cent as calculated in part (iii) (a) of the answer.

Page 29: 1 risk analysis in capital budgeting

Decision-tree Approach

Decision tree is a pictorial representation in tree from which indicates the magnitude, probability and inter-relationships of all possible outcomes.

Example:  Suppose a firm has an investment proposal, requiring an outlay of Rs 2,00,000 at present (t = 0). The investment proposal is expected to have 2 years’ economic life with no salvage value. In year 1, there is a 0.3 probability (30 per cent chance) that CFAT will be Rs 80,000; a 0.4 probability (40 per cent chance) that CFAT will be Rs 1,10,000 and a 0.3 probability (30 per cent chance) that CFAT will be Rs 1,50,000. In year 2, the CFAT possibilities depend on the CFAT that occurs in year 1. That is, the CFAT for the year 2 are conditional on CFAT for the year 1. Accordingly, the probabilities assigned with the CFAT of the year 2 are conditional probabilities. The estimated conditional CFAT and their associated conditional probabilities are as follows:

If CFAT1 = Rs 80,000 If CFAT1 = Rs 1,10,000 If CFAT1 = Rs 1,50,000

CFAT2 Probability CFAT2 Probability CFAT2  Probability

Rs 40,000 0.2 Rs 1,30,000 0.3 Rs 1,60,000 0.1

1,00,000 0.6 1,50,000 0.4 2,00,000 0.8

1,50,000 0.2 1,60,000 0.3 2,40,000 0.1

Page 30: 1 risk analysis in capital budgeting

12 - 30

Solution  The estimated values have been portrayed in Fig. 4.

 

Time: 0

Path Expected NPVat 8% rate of

discount

JointProbability

  (Pj)**

Expected NPVNPV (×) Pj

Year 1          Year 2

Probabilities

  CFAT   Probabilities

  CFAT

 

Cash Outlays

 Rs 2,00,000

0.3

0.4

0.3

    

Rs 80,000

1,10,000

1,50,000

0.2

0.6

0.2

0.3

0.4

0.3

0.1

0.8

0.1

Rs 40,000

1,00,000

1,50,000

1,30,000

1,50,000

1,60,000

1,60,000

2,00,000

2,40,000

1

2

3

4

5

6

7

8

9

Rs (– 91,640)

(–40,220)

(–2,630)

13,270

30,410

38,980

76,020

1,10,300

1,44,580

0.06

0.18

0.06

0.12

0.16

0.12

0.03

0.24

0.031.00

Rs (– 5,498.4)

(–7,239.6)

(–157.8)

1,592.4

4,865.6

4,677.6

2,280.6

26,472.0

4,337.431,329.8

* PV factors for years 1 and 2 at 8% discount rate as per Table A-3 are 0.926 and 0.857 respectively. Multiply CFAT1 by 0.926 and CFAT2 by 0.857; summing up, we get total PV for individual possible CFAT; substracting Rs. 2,00,000 (CO), we get the NPV.

** Product of probabilities of CFAT for years 1 and 2.

Figure 4: Decision Tree

Page 31: 1 risk analysis in capital budgeting

The DT shows 9 distinct possibilities, the project could assume if accepted. For example, one possibility is that the CFAT for the year one may amount to Rs 80,000 and for the year 2 Rs 40,000. A close perusal of Fig. 4 would also indicate that this is the worst event that could happen. Assuming a 8 per cent risk free/discount rate for the project, the NPV would be negative. Likewise, the best outcome that could occur is CFAT1 = Rs 1,50,000 and CFAT2 = Rs 2,40,000. The NPV would be the highest among all the 9 possible combinations. Figure 4 shows the NPV at 8 per cent discount rate of each of the estimated CFATs.

The expected NPV of the project is given by the following mathematical formulation:

wherePj =The probability of the jth path occurring which is equal to the joint probability along the path;

NPVj = NPV of the j th path occurring.

In our example, the joint probability, Pj for the worst path is 0.06 (0.3 × 0.2) and for the best path is 0.03 (0.3 × 0.1). The sum of all these joint probabilities must be equal to 1. The last column shows the expected NPV, which is obtained by summing up the product of NPV of jth path and the corresponding probability of jth path (EPj × NPVj). The sum of these weighted NPVs is positive and, therefore, the project should be accepted.This approach has the advantage of exhibiting a bird’s eye view of all the possibilities associated with the proposed project.

m

1jjj )9(NPVPNPV

Page 32: 1 risk analysis in capital budgeting

CONVENTIONAL TECHNIQUES OF RISK ANALYSIS

Payback Risk-adjusted discount rate Certainty equivalent

32

Page 33: 1 risk analysis in capital budgeting

Risk Analysis in Practice

Most companies in India account for risk while evaluating their capital expenditure decisions.

The following factors are considered to influence the riskiness of investment projects: price of raw material and other inputs price of product product demand government policies technological changes project life inflation

33

Page 34: 1 risk analysis in capital budgeting

Risk Analysis in Practice

Four factors thought to be contributing most to the project riskiness are: selling price product demand technical changes government policies

Methods of risk analysis in practice are: sensitivity analysis conservative forecasts

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Page 35: 1 risk analysis in capital budgeting

Sensitivity Analysis & Conservative Forecasts

Sensitivity analysis allows to see the impact of the change in the behaviour of critical variables on the project profitability.

Conservative forecasts include using short payback or higher discount rate for discounting cash flows.

Except a very few companies most companies do not use the statistical and other sophisticated techniques for analysing risk in investment decisions.

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Payback

This method, as applied in practice, is more an attempt to allow for risk in capital budgeting decision rather than a method to measure profitability.

The merit of payback Its simplicity. Focusing attention on the near term future and thereby emphasising

the liquidity of the firm through recovery of capital. Favouring short term projects over what may be riskier, longer term

projects.

Even as a method for allowing risks of time nature, it ignores the time value of cash flows.

36

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Risk-Adjusted Discount Rate Risk-adjusted discount rate, will allow for both time

preference and risk preference and will be a sum of the risk-free rate and the risk-premium rate reflecting the investor’s attitude towards risk.

Under CAPM, the risk-premium is the difference between the market rate of return and the risk-free rate multiplied by the beta of the project.

37

= 0

NCFNPV =

(1 )

nt

tt k

f rk = k + k

Page 38: 1 risk analysis in capital budgeting

We shall be using the following equation for the purpose of determining NPV under the RAD method.

where CFATt = expected CFAT in year t, Kr = risk-adjusted discount rate, CO = cash outflows.Thus, projects are evaluated on the basis of future cash flow projections and an appropriate discount rate. Example 5 clarifies how the Kr can be used to evaluate capital budgeting projects.

n

1tt

r

t (3)COk1

CFATNPV

Example

Cash outlays    (Rs 1,00,000)50,00060,00040,000

CFAT Year 1Year 2Year 3

Riskless rate of return = 6 per cent

Risk-adjusted rate of return for the current project = 20 per cent

Solution

6,410 Rs (0.579)] 40,000 [Rs (0.694)] 60,000 [Rs (0.833)] 50,000 [Rs

1,00,000 Rs.201

40,000Rs

.201

60,000Rs

.201

50,000 Rs 1,00,000) (Rs NPV 32

Page 39: 1 risk analysis in capital budgeting

Risk-adjusted Discount Rate: Merits

It is simple and can be easily understood. It has a great deal of intuitive appeal for risk-averse

businessman. It incorporates an attitude (risk-aversion) towards

uncertainty.

39

Page 40: 1 risk analysis in capital budgeting

Risk-adjusted Discount Rate: LimitationsThere is no easy way of deriving a risk-adjusted discount rate.

CAPM provides a basis of calculating the risk-adjusted discount rate.

It does not make any risk adjustment in the numerator for the cash flows that are forecast over the future years.

It is based on the assumption that investors are risk-averse. Though it is generally true, yet there exists a category of risk seekers who do not demand premium for assuming risks; they are willing to pay a premium to take risks.

40

Page 41: 1 risk analysis in capital budgeting

Example41

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Example42

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Certainty-Equivalent

Reduce the forecasts of cash flows to some conservative levels.The certainty-equivalent coefficient assumes a value between 0 and 1, and varies inversely with risk. Decision-maker subjectively or objectively establishes the coefficients.

The certainty—equivalent coefficient can be determined as a relationship between the certain cash flows and the risky cash flows.

43

= 0

NCFNPV =

(1 )f

nt t

tt k

*NCF Certain net cash flow =

NCF Risky net cash flowt

tt

Page 44: 1 risk analysis in capital budgeting

We illustrate below the certainty-equivalent approach to adjust risk to capital budgeting analysis on the basis of Previous Example.

Year Coefficient

1

2

3

0.90

0.70

0.60

The certainty-equivalent cash inflows would be as follows:

Year 1 = Rs 45,000 (coefficient 0.9 × Rs 50,000, the expected cash inflows)

Year 2 = Rs 42,000 (0.70 × Rs 60,000)

Year 3 = Rs 24,000 (0.60 × Rs 40,000)

This would be discounted by the riskless rate of return, which is, 6 per cent. Substituting the value in Equation (5),

Since the NPV is negative, the project should be rejected. This decision is in conflict with the decision using the risk-adjusted discount rate where K = 20 per cent. Thus, both these methods may not yield identical results.

25Rs1,00,000Rs0.84024,000Rs0.89042,000 Rs(0.943) 45,000 Rs

1,00,000Rs0.061

24,000Rs

0.061

42,000Rs

0.061

45,000RsNPV 321

Page 45: 1 risk analysis in capital budgeting

Certainty-Equivalent: Evaluation

First, the forecaster, expecting the reduction that will be made in his forecasts, may inflate them in anticipation.

Second, if forecasts have to pass through several layers of management, the effect may be to greatly exaggerate the original forecast or to make it ultra-conservative.

Third, by focusing explicit attention only on the gloomy outcomes, chances are increased for passing by some good investments.

45

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Example46

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Risk-adjusted Discount Rate Vs. Certainty-Equivalent The certainty-equivalent approach recognises risk in capital

budgeting analysis by adjusting estimated cash flows and employs risk-free rate to discount the adjusted cash flows.

On the other hand, the risk-adjusted discount rate adjusts for risk by adjusting the discount rate. It has been suggested that the certainty-equivalent approach is theoretically a superior technique.

The risk-adjusted discount rate approach will yield the same result as the certainty-equivalent approach if the risk-free rate is constant and the risk-adjusted discount rate is the same for all future periods.

47

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SENSITIVITY ANALYSIS

Sensitivity analysis is a way of analysing change in the project’s NPV (or IRR) for a given change in one of the variables.

The decision maker, while performing sensitivity analysis, computes the project’s NPV (or IRR) for each forecast under three assumptions: pessimistic, expected, and optimistic.

48

Page 49: 1 risk analysis in capital budgeting

SENSITIVITY ANALYSIS

The following three steps are involved in the use of sensitivity analysis:

1. Identification of all those variables, which have an influence on the project’s NPV (or IRR).

2. Definition of the underlying (mathematical) relationship between the variables.

3. Analysis of the impact of the change in each of the variables on the project’s NPV.

49

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SENSITIVITY ANALYSIS(‘000)

YEAR 0 YEAR 1 - 101. INVESTMENT (20,000)2. SALES 18,0003. VARIABLE COSTS (66 2/3 % OF SALES) 12,0004. FIXED COSTS 1,0005. DEPRECIATION 2,0006. PRE-TAX PROFIT 3,0007. TAXES 1,0008. PROFIT AFTER TAXES 2,0009. CASH FLOW FROM OPERATION 4,00010. NET CASH FLOW 4,000

NPV = -20,000,000 + 4,000,000 (5.650) = 2,600,000 ( discount rate = 12 % )

RS. IN MILLIONRANGE NPV

KEY VARIABLE PESSIMISTIC EXPECTED OPTIMISTIC PESSIMISTIC EXPECTED OPTIMISTIC INVESTMENT (RS. IN MILLION) 24 20 18 -0.65 2.60 4.22 SALES (RS. IN MILLION) 15 18 21 -1.17 2.60 6.40 VARIABLE COSTS AS A 70 66.66 65 0.34 2.60

3.73 PERCENT OF SALES FIXED COSTS 1.3 1.0 0.8 1.47 2.60 3.33

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DCF Break-even Analysis

Sensitivity analysis is a variation of the break-even analysis.

DCF break-even point is different from the accounting break-even point. The accounting break-even point is estimated as fixed costs divided by the contribution ratio. It does not account for the opportunity cost of capital, and fixed costs include both cash plus non-cash costs (such as depreciation).

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BREAK-EVEN ANALYSIS

• ACCOUNTING BREAK-EVEN ANALYSISFIXED COSTS + DEPRECIATION 1 + 2

= = RS. 9 MILLION

CONTRIBUTION MARGIN RATIO 0.333

CASH FLOW FORECAST FOR NAVEEN’S FLOUR MILL PROJECT

(‘000)

YEAR 0 YEAR 1 - 10

1. INVESTMENT (20,000)

2. SALES 18,000

3. VARIABLE COSTS (66 2/3% OF SALES) 12,000

4. FIXED COSTS 1,000

5. DEPRECIATION 2,000

6. PRE-TAX PROFIT 3,000

7. TAXES 1,000

8. PROFIT AFTER TAXES 2,000

9. CASH FLOW FROM OPERATION 4,000

10. NET CASH FLOW (20,000) 4,000

• CASH BREAK-EVEN ANALYSIS

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Sensitivity Analysis: Pros and Cons It compels the decision-maker to identify the variables, which

affect the cash flow forecasts. This helps him in understanding the investment project in totality.

It indicates the critical variables for which additional information may be obtained. The decision-maker can consider actions, which may help in strengthening the ‘weak spots’ in the project.

It helps to expose inappropriate forecasts, and thus guides the decision-maker to concentrate on relevant variables.

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Sensitivity Analysis: Pros and ConsIt does not provide clear-cut results. The terms

‘optimistic’ and ‘pessimistic’ could mean different things to different persons in an organisation. Thus, the range of values suggested may be inconsistent.

It fails to focus on the interrelationship between variables. For example, sale volume may be related to price and cost. A price cut may lead to high sales and low operating cost.

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SCENARIO ANALYSIS

One way to examine the risk of investment is to analyse the impact of alternative combinations of variables, called scenarios, on the project’s NPV (or IRR).

The decision-maker can develop some plausible scenarios for this purpose. For instance, we can consider three scenarios: pessimistic, optimistic and expected.

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SCENARIO ANALYSISPESSIMISTIC, NORMAL AND OPTIMISTIC

Pessimistic Scenario

Expected Scenario

Optimistic Scenario

1. Investment 24 20 18

2. Sales 15 18 21

3. Variable costs 10.5 (70%) 12 (66.7%) 13.65 (65%)

4. Fixed costs 1.3 1.0 0.8

5. Depreciation 2.4 2.0 1.8

6. Pre-tax profit 0.8 3.0 4.75

7. Tax 0.27 1.0 1.58

8. Profit after tax 0.53 2.0 3.17

9. Annual cash flow from operations 2.93 4.0 4.97

10. Net present value (9) x PVIFA (12%, 10 yrs) – (1)

(7.45) 2.60 10.06

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SIMULATION ANALYSIS

The Monte Carlo simulation or simply the simulation analysis considers the interactions among variables and probabilities of the change in variables. It computes the probability distribution of NPV.

The simulation analysis involves the following steps: First, you should identify variables that influence cash inflows and

outflows. Second, specify the formulae that relate variables. Third, indicate the probability distribution for each variable. Fourth, develop a computer programme that randomly selects one

value from the probability distribution of each variable and uses these values to calculate the project’s NPV.

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Simulation Analysis: Shortcomings The model becomes quite complex to use. It does not indicate whether or not the project

should be accepted. Simulation analysis, like sensitivity or scenario

analysis, considers the risk of any project in isolation of other projects.

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Decision Trees for Sequential Investment DecisionsInvestment expenditures are not an isolated

period commitments, but as links in a chain of present and future commitments.

An analytical technique to handle the sequential decisions is to employ decision trees.

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Steps in Decision Tree ApproachDefine investment Identify decision alternatives Draw a decision tree

decision points chance events

Analyse data

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Usefulness of Decision Tree Approach

Clarity: It clearly brings out the implicit assumptions and calculations for all to see, question and revise.

Graphic visualization: It allows a decision maker to visualise assumptions and alternatives in graphic form, which is usually much easier to understand than the more abstract, analytical form.

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Decision Tree Approach: Limitations The decision tree diagrams can become more and

more complicated as the decision maker decides to include more alternatives and more variables and to look farther and farther in time.

It is complicated even further if the analysis is extended to include interdependent alternatives and variables that are dependent upon one another.

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SOLVED PROBLEMS

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Consumer demand for a new toy

Probability of occurrence

Estimated sales in year (Rs in lakh)

1 2 3

Above average 0.30 12 25 6

Average 0.60 7 17 4

Below average 0.10 2 9 1.5

SOLVED PROBLEM 1

Toy Enterprises Ltd designs and manufactures toys. Past experience indicates that the product life of a toy is 3 years. Promotional advertising produces an increase in sales in the early years, but there is a substantial sales decline in the final year of a toy’s life.

Consumer demand for new toys placed on the market tends to fall into three classes. About 30 per cent of the new toys sell well above expectations, 60 per cent sell as anticipated, and 10 per cent have poor consumer acceptance.

A new toy has been developed. The following sales projections were made by carefully evaluating the consumer demand.

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Variable costs are estimated at 30 per cent of the selling price. Special machinery must be purchased at a cost of Rs 8,60,000 which will be installed in an unused portion of the factory. The company has been trying unsuccessfully for several years to rent out the vacant portion at Rs 50,000 per year. Fixed expenses (excluding depreciation) are estimated at Rs 50,000 per year. The new machinery will be depreciated by the written down value method @ 25 per cent with an estimated value of Rs 1,10,000 at the end of the third year. Assume this is the only asset in the block. Advertising and promotional expenses will be incurred uniformly, and will total Rs 1,00,000 in the first year, Rs 1,50,000 in the second year, and Rs 50,000 in the third year.

The company is subject to a corporate tax rate of 35 per cent. Its cost of capital is 10 per cent.

(i)Prepare a schedule computing the probable sales of this new toy in each of the three years. Also, determine the NPV of the proposal.

(ii)Assuming that cash flows occur uniformly throughout each year, determine the NPV of the proposal. The present value of Re 1 earned uniformly throughout the year discounted at 10 per cent is as follows:

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Solution

(i) Schedule showing probable sales of the new toy, years 1–3(Rs in lakh)

  Consumer demand

  for new toy

Probability of occurrence

(Pj )

Years (estimated sales)

Probable sales per year

1 2 3 1 2 3

Above average 0.30 12 25 6 3.6 7.5 1.80

Average 0.60 7 17 4 4.2 10.2 2.40

Below average 0.10 2 9 1.5 0.2 0.9 0.15

8.0 18.6 4.35

Year Discount factor

1 0.95

2 0.86

3 0.78

(iii) Give your recommendations in both the situations.

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Determination of CFAT

  Particulars Years

1 2 3

Probable sales revenue Rs 8,00,000

Rs 18,60,000

Rs 4,35,000

  Less: Variable costs (0.30) 2,40,000 5,58,000 1,30,500

  Less: Depreciation 2,15,000 1,61,250 Nil*  

Cash fixed costs 50,000 50,000 50,000

Advertising expenses 1,00,000 1,50,000 50,000

EBT 1,95,000 9,40,750 2,04,500

  Less: Taxes (0.35) 68,250 3,29,263 71,575

EAT 1,26,750 6,11,487 1,32,925

CFAT (EAT + Depreciation) 3,41,750 7,72,737 1,32,925

  Add: Salvage value —   —   1,10,000

  Add: Tax savings on short-term capital loss**

—   —   1,30,812

3,41,750 7,72,737 3,73,737

* No depreciation in terminal year.** (Rs 3,73,750 × 0.35)

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(ii) Determination of NPV assuming CFAT occurs uniformly throughout the year

Year CFAT PV factor (0.10)

Total PV

1 Rs 3,41,750 0.95 Rs 3,24,662

2 7,27,737 0.86 6,25,854

3 1,32,925 0.78 1,03,681

3 1,10,000 (salvage value) 0.751 82,610

3 1,32,812 (tax savings on short-term capital loss) 0.751 98,240

Total present value 12,35,047

  Less: Cash outflows 8,60,000

NPV 3,75,047

(iii) Recommendation  The project should be accepted in both the situations.

Determination of NPV

Year CFAT PV factor (0.10) Total PV

1 Rs 3,41,750 0.909 Rs 3,10,651

2 7,27,737 0.826 6,01,111

3 3,73,737 0.751 2,80,676

Total present value 11,92,438

  Less: Cash outflows 8,60,000

NPV 3,32,438

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SOLVED PROBLEM 2

A company has the following estimates of the present values of the future

cash flows after taxes associated with the investment proposal, concerned

with expanding the plant capacity. It intends to use a decision-tree approach

to get a clear picture of the possible outcomes of this investment. The plant

expansion is expected to cost Rs 3,00,000. The respective PVs of future CFAT

and probabilities are as follows:

PV of future CFAT

With expansion Without expansion Probabilities

Rs 3,00,000 Rs 2,00,000 0.2

5,00,000 2,00,000 0.4

9,00,000 3,50,000 0.4

Advise the company regarding the financial feasibility of the project.

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Solution

The relevant computation are depicted below

Decision Tree

Time:0 Year 1

Probabilities (Pi)

PV of CFAT Expected PV

(CFAT) x (Pi)

0.2 Rs 3,00,000 Rs 60,000

0.4 5,00,000 2,00,000

0.4 9,00,000 3,60,000

6,20,000

Less: Cash Outflows - 3,00,000

NPV 3,20,000

0.2 2,00,000 40,000

0.4 2,00,000 80,000

0.4 3,50,000 1,40,000

2,60,000

Less: Cash outflows Nil

NPV 2,60,000

The expected NPV with plant expansion and without expansion is Rs 3,20,000 and Rs 2,60,000 respectively. Therefore, the company is advised to expand the plant capacity

Cash outlays

Nil

Cash outlays

Rs 3,00,000

Do not expand plant

Expand plant

Decision tree