# Finanças - PowerPoint PPT Presentation

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Finanças. November 7. Topics covered. CAPM for cost of capital Estimation of beta. Risk and cost of capital. Previously: Determine the timing and the size of cash flows Now: determine the discount rate for risky cash flows The discount rate can be computed from the CAPM.

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Finanças

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## Finanças

November 7

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### Topics covered

• CAPM for cost of capital

• Estimation of beta

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### Risk and cost of capital

• Previously: Determine the timing and the size of cash flows

• Now: determine the discount rate for risky cash flows

• The discount rate can be computed from the CAPM

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Pay cash dividend

Invest in project

### Choices of a firm with extra cash

Shareholder invests in financial asset

Firm withexcess cash

A firm with excess cash can either pay a dividend or make a capital investment

Shareholder’s Terminal Value

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### Capital budgeting rule

• The discount rate of a project

• The expected return

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### Cost of capital

• Example

• Suppose the stock of a company has a beta of 2.5. The firm is 100-percent equity financed.

• Assume a risk-free rate of 5-percent and a market risk premium of 10-percent.

• What is the appropriate discount rate for an expansion of this firm?

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Project

Project b

Project’s Estimated Cash Flows Next Year

IRR

NPV at 30%

A

2.5

\$150

50%

\$15.38

B

2.5

\$130

30%

\$0

C

2.5

\$110

10%

-\$15.38

### Example (continued)

Suppose the company is evaluating the following non-mutually exclusive projects. Each costs \$100 and lasts one year.

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### Using the SML to Estimate the Risk-Adjusted Discount Rate for Projects

Project

IRR

5%

Firm’s risk (beta)

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### Estimation of beta

• Beta: Sensitivity of a stock’s return to the return on the market portfolio.

• Market Portfolio: Portfolio of all assets in the economy. In practice a broad stock market index, such as the S&P Composite, is used to represent the market.

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### Stability of Beta

• Many analysts argue that betas are generally stable for firms remaining in the same industry.

• That’s not to say that a firm’s beta can’t change.

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### Using an Industry Beta

• It is frequently argued that one can better estimate a firm’s beta by involving the whole industry.

• If you believe that the operations of the firm are similar to the operations of the rest of the industry,

• If you believe that the operations of the firm are fundamentally different from the operations of the rest of the industry

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### Determinants of beta

• Cylicality of revenues

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### Determinants of beta

• Operating leverage

• how sensitive a firm is to its fixed costs.

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 EBIT

\$

 Volume

Volume

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### Determinants of beta

• Financial leverage

• Operating leverage

• Financial leverage

• The relationship between the betas of the firm’s debt, equity, and assets is given by:

• The beta of debt

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### Financial Leverage and Beta: Example

Consider a company which is currently all-equity and has a beta of 0.90. The firm has decided to lever up to a capital structure of 1 part debt to 1 part equity. Since the firm will remain in the same industry, its asset beta should remain 0.90. However, assuming a zero beta for its debt, its equity beta would become:

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• Conclusion

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### Extension of the basic model

• The firm vs the project

• The risk of a project

• The project should be discounted with

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rf

bFIRM

### The firm vs the project

A firm that uses one discount rate for all projects may over time increase the risk of the firm while decreasing its value.

Project IRR

Hurdle rate

Firm’s risk (beta)

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### The firm vs the project

Suppose the Conglomerate Company has a cost of capital, based on the CAPM, of 17%. The risk-free rate is 4%; the market risk premium is 10% and the firm’s beta is 1.3.

17% = 4% + 1.3 × [14% – 4%]

This is a breakdown of the company’s investment projects:

1/3 Automotive retailer b = 2.0

1/3 Computer Hard Drive Mfr. b = 1.3

1/3 Electric Utility b = 0.6

average b of assets = 1.3

When evaluating a new electrical generation investment, which cost of capital should be used?

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### Capital Budgeting & Project Risk

SML

Project IRR

24%

Investments in hard drives or auto retailing should have higher discount rates.

17%

10%

Project’s risk (b)

0.6

1.3

2.0

r = 4% + 0.6×(14% – 4% ) = 10% 10% reflects the opportunity cost of capital on an investment in electrical generation, given the unique risk of the project.

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### Extention of the basic model

• The Weighted Average Cost of Capital

• It is because interest expense is tax-deductible that we multiply the last term by

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### WACC

• Example: a firms with a debt-equity ratio of 0.6, a cost of debt of 15.15%, and a cost of equity of 20%. The corporate tax rate is 34%.

• Debt to value ratio=6/(10+6)=0.375

• Equity to value ratio=1-0.375=0.625

• rwacc=0.625*20%+0.375*15.15%*(1-0.34)

=16.25%

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Cost of equity

Cost of debt

Calculate WACC

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