QCHAPTER 8

Chapter 8 PORTFOLIO SELECTION

Multiple Choice Questions

Building a Portfolio Using Markowitz Principles

1. According to Markowitz, rational investors will seek efficient portfolios because these portfolios are optimal based on: a. expected return. b. risk. c. expected return and risk. d. transactions costs.

2. Under the Markowitz model, investors:

a. are assumed to be risk-seekers.
b. are not allowed to use leverage.
c. are assumed to be institutional investors.
d. all of the above.

3. Which of the following is not one of the assumptions of portfolio theory?

a. Liquidity of positions.
b. Investor preferences are based only on expected return and risk.
c. Low transactions costs.
d. A single investment period.

4. The Markowitz model assumes most investors are:

a. risk averse.
b. risk neutral.
c. risk seekers.
d. risk moderators.

5. An indifference curve shows:

a. the one most desirable portfolio for a particular investor.
b. all combinations of portfolios that are equally desirable to a particular investor.
c. all combinations of portfolios that are equally desirable to all investors.
d. the one most desirable portfolio for all investors.

6. Which of the following statements regarding indifference curves is not true?

a. Investors have a finite number of indifference curves.
b. The greater the slope of the indifference curve, the greater the risk aversion of investors.
c. The indifference curves for all risk-averse investors will be upward sloping.
d. Indifference curves cannot intersect.

7. The optimal portfolio for a risk-averse investor:

a. cannot be determined.
b. occurs at the point of tangency between the highest indifference curve and the highest expected return.
c. occurs at the point of tangency between the highest indifference curve and the efficient set of portfolios.
d. occurs at the point of tangency between the highest expected return and lowest risk efficient portfolios.

8. Indifference curves reflect -------------- while the efficient set of portfolios represent ---------------.

a. portfolio possibilities; investor preferences.
a. investor preferences; portfolio possibilities.
b. portfolio return; investor risk.
c. investor preferences; portfolio return.

9. According to Markowitz, an efficient portfolio is one that has the

a. largest expected return for the smallest level of risk. b. largest expected return and zero risk. c. largest expected return for a given level of risk. d. smallest level of risk.

10. Portfolios lying on the upper right portion of the efficient frontier are likely to be chosen by

a. aggressive investors. b. conservative investors. c. risk-averse investors. d. defensive investors.

11. A portfolio which lies below the efficient frontier is described as

a. optimal. b. unattainable. c. dominant. d. dominated.

12. The optimal portfolio is the efficient portfolio with the

a. lowest risk. b. highest risk. c. highest utility. d. least investment.

13. Indifference curves:

a. always curve to the left. b. have a negative slope. c. cannot intersect. d. all of the above.

The Global Perspective - International Diversification

14. Correlations among country returns have ____ since 1995.

a. increased. b. decreased. c. disappeared. d. become more volatile.

Some Important Conclusions About the Markowitz Model

15. Different investors will estimate the inputs to the Markowitz model differently because:

a. every investor has his/her own risk/return preferences.
b. every investor has access to different information about securities.
c. there is an inherent uncertainty in security analysis.
d. there is a random selection process used by individual investors.

16. Which of the following is not true regarding the Markowitz theory?

a. Markowitz portfolio theory is considered a three-parameter model.
b. Under the Markowitz model, no portfolio on the efficient frontier dominates any other portfolio on the efficient frontier.
c. The Markowitz model is cumbersome to work with due to the large variance-covariance matrix needed for a set of stocks.
d. All of the above are true.

Alternative Methods of Obtaining the Efficient Frontier

17. How many pieces of data does the single-index model require for a universe of 500 securities?

a. 1002 Solution: Number = 3n + 2 b. 1502 = 3(500) + 2 = 1502 c. 500 d. 502

18. The single index model divides a security's return into _______ and ________ parts.

a. supply; demand b. control; non-control c. company-related; industry-related d. micro; macro

19. Market risk is best measured by the:

a. alpha
b. beta
c. standard deviation
d. coefficient of variation

20. Choose the portfolio from the following set that is not on the efficient frontier.

a. A: expected return of 10 percent ; standard deviation of 8 percent. b. B: expected return of 18 percent; standard deviation of 13 percent c. C: expected return of 38 percent; standard deviation of 38 percent. d. D: expected return of 15 percent; standard deviation of 14 percent.

21. The single-index model implies that stocks covary together only because of their common:

a. currency. b. relationship to each other. c. relationship to the market. d. desire to make a profit.

22. With the Single-index model, the difference between actual return and expected return given a particular market index is referred to as the:

a. parameter.
b. unique part.
c. error term.
c. beta.

23. Under the Multi-Index Model, the industry relationship to stock prices would be assessed by the:

a. market factor.
b. nonmarket factor.
c. beta.
d. unique part.

24. To implement the single-index model, estimates of the _______for each stock are needed.

a. expected return b. standard deviation c. beta d. covariance

Selecting Optimal Asset Classes - The Asset Allocation Decision

25. Asset allocation is one of the most widely used applications of:

a. the Capital Asset Pricing Model.
b. random diversification.
c. passive portfolio approach.
d. the modern portfolio theory.

26. A major argument against international diversification is that:

a. foreign stocks have higher risks than U.S. stocks on average.
b. foreign stocks tend to fall more in declining markets than U.S. stocks.
c. foreign stocks have high correlation with U.S. stocks.
d. foreign stocks have higher transaction costs, on average, than U.S. stocks.

27. The only asset class to provide systematic protection against inflation is:

a. bonds.
b. real estate.
c. foreign stocks.
d. TIPS

28. Which of the following statements is true regarding TIPS?

a. As inflation changes, the interest rate on the bond is adjusted.
b. The correlation between TIPS and the S&P 500 Index has often been negative.
c. TIPS are more volatile than regular Treasury bonds of similar maturity.
d. All of the above are true.

Asset Allocation and the Individual Investor

29. Based on recent history, an investor would probably have a lower risk level with a portfolio consisting of:

a. all stocks.
b. all bonds.
c. some stocks and some bonds.
d. Impossible to tell.

The Impact of Diversification on Risk

30. Nonsystematic risk is also known as:

a. nondiversifiable risk.
b. market risk.
c. random risk.
d. company-specific risk.

31. Which of the following would not be considered a source of systematic risk?

a. a hostile takeover
b. a rise in inflation
c. a fall in GDP
d. a panic on Wall Street

True/False Questions

Building a Portfolio Using Markowitz Principles

1. The Markowitz model selects the portfolio most appropriate for an individual investor.

2. When using the Markowitz model, aggressive investors would select portfolios on the left end of the efficient frontier.

3. Markowitz derived the efficient frontier as an upward-sloping straight line.

4. A major assumption of the Markowitz model is that investors base their decisions strictly on expected return and risk factors.

5. Under the Markowitz model, the risk of a portfolio is measured by the standard deviation.

Alternative Methods of Obtaining the Efficient Frontier

6. The single index model requires (3n+2) total pieces of data to implement.

7. The Sharpe model was found to outperform the Markowitz model in longer time periods.

Selecting Optimal Asset Classes - The Asset Allocation Decision

8. Asset allocation accounts for less than 50 percent of the variance in quarterly returns for a typical pension fund.

9. Bonds are rarely considered as one of the asset classes to hold in a diversified portfolio.

10. It would be impossible to combine an asset allocation plan with Markowitz analysis.

11. Real estate is an asset class that typically has little or no correlation with stocks.

The Impact of Diversification on Risk

12. Based on recent research, it seems reasonable that approximately 10-20 securities are needed to ensure adequate diversification.