Equity Portfolio Management Flashcards
The economy’s equilibrium level of real interest rates depends on… (Select 1-3)
A) The households’ willingness to save
B) The profitability of investments in PP&E and inventories for companies
C) The government monetary policy
D) The government fiscal and monetary policy
A) The households’ willingness to save - as reflected in the supply curve of funds
B) The profitability of investments in PPE and inventories for companies - as reflected in the demand curve of funds
D) The government fiscal AND monetary policy
Which of the following is true?
A) Real Interest Rate = Nominal Interest Rate + Expected Rate of Inflation
B) Nominal Interest Rate = Real Interest Rate + Expected Rate of Inflation
C) Nominal Interest Rate = Real Interest Rate - Expected Rate of Inflation
B) Nominal Interest Rate = Real Interest Rate + Expected Rate of Inflation
In general, we can only directly observe nominal interest rates; from which, we must infer expected real rates, using inflation forecasts!
The equilibrium expected rate of return on any security is the sum of the equilibrium real rate of interest, the expected rate of inflation, and a security-specific risk premium.
TRUE/ FALSE
TRUE.
Equilibrium expected return on any security = equilibrium real interest rate + expected inflation + security-specific risk premium.
Historical returns on stocks exhibit somewhat more frequent large negative deviations from the mean than would be predicted from a normal distribution. Which of the following can help quantify the deviation from normality? A) skew of the actual distribution B) kurtosis of the actual distribution C) VaR D) lower partial standard deviation (LPSD) of the actual distribution E) A, B, C F) A, C, D G) A, B, D
G) A, B, D:
The lower partial standard deviation (LPSD), skew, and kurtosis of the actual distribution quantify the deviation from normality.
Lower partial standard deviation (LPSD): Standard deviation computed using only the portion of the return distribution below a threshold such as the risk-free rate or the sample average.
Widely used measures of tail risk are; (i) value at risk (VaR) and (ii) expected shortfall (ES). Which of the following statements are true? Select 1-4
A) VaR measures the loss that will be exceeded with a specified probability such as 1% or 5%.
B) Expected shortfall (ES) measures the expected rate of return conditional on the portfolio falling below a certain value: e.g., 1% ES is the expected value of the outcomes that lie in the bottom 1% of the distribution.
C) ES is always larger than VaR
D) VaR is always higher than ES
A) VaR measures the loss that will be exceeded with a specified probability such as 1% or 5%.
B) Expected shortfall (ES) measures the expected rate of return conditional on the portfolio falling below a certain value: e.g., 1% ES is the expected value of the outcomes that lie in the bottom 1% of the distribution.
C) ES is always larger than VaR
Risk-free rate is the rate you would earn in risk-free assets. Which of the following options is NOT a risk-free asset?
A) T-bills
B) Money market funds
C) Certificates of Deposits (CD)
D) Yield obtained from bank depositing
E) All of the above options are considered risk-free
E) All of the above options are considered risk-free
The following statement is NOT true about excess return:
A) Excess return represents the EXPECTED payment to investors for tolerating the extra risk in a given investment over that of a risk-free asset
B) Excess return is the difference in any particular period between the ACTUAL rate of return on a risky asset and the actual risk-free rate.
C) The risk premium is the expected value of the excess return.
D) The standard deviation of the excess return is a measure of its risk.
E) All options are correct
WRONG OPTION: A
Excess return represents the ACTUAL payment to investors for tolerating the extra risk in a given investment over that of a risk-free asset. It is the difference in any particular period between the ACTUAL rate of return on a risky asset and the actual risk-free rate.
Meanwhile, the RISK PREMIUM reflects the EXPECTED value of excess return.
Following is NOT true about risk-averse investors: Select 1-4
A) they prioritize the safety of principal over the possibility of a higher return on their money
B) they prefer illiquid investments
C) they generally favor municipal and corporate bonds, CDs, and savings accounts
D) they take on additional risk if the excess return is above a certain threshold
WRONG OPTIONS: B and D
B) they prefer LIQUID investments. That is, their money can be accessed when needed, regardless of market conditions at the moment.
D) they DONT take on additional risk if the excess return is above a certain threshold, because they would rather be certain not to suffer losses on their principal
Following is NOT true about normal distribution:
A) It is completely characterized by two parameters; the mean and SD
B) Investment management is far more tractable when rates of return can be well approximated by the normal distribution
C) the normal distribution is symmetric, i.e., the probability of any positive deviation above the mean is equal to that of a negative deviation of the same magnitude. Absent symmetry, the standard deviation is an incomplete measure of risk.
D) When assets with normally distributed returns are mixed to construct a portfolio, the corresponding portfolio return is not normally distributed.
E) when securities are normally distributed, the statistical relation between returns can be summarized with a single correlation coefficient. Absent normal distribution, such dependence is a complex, multilayered relationship
WRONG: D)
When assets with normally distributed returns are mixed to construct a portfolio, the portfolio return IS ALSO NORMALLY DISTRIBUTED.
The Fisher equation claims that the real rate of interest is approximately equal to the nominal interest minus inflation rate. Given this, what if inflation rate was to increase from 3% to 5%, how will this affect nominal rate and real rate of interest, given all else equal?
If inflation increases, all else equal, the real interest rate will ____.
If inflation increases, all else equal, the nominal interest rate will ____.
A) Fall, rise
B) Rise, fall
C) Fall, fall
D) Rise, rise
CORRECT: A)
If inflation increases, all else equal, the real interest rate will FALL.
If inflation increases, all else equal, the nominal interest rate will RISE.
real=nominal - inflation
nominal= real + inflation
Large historical datasets (large sample) is advantageous given a reasonably stable return distribution - why?
A) Assuming that the return distribution remains reasonably stable over the entire history, a longer sample period increases the precision of the estimate of the expected rate of return, since the standard error decreases as the sample size increases.
B) Given a volatile mean that randomly changes y-o-y in the sample, i.e., we are unable to determine the nature of this change, a large sample is still advantageous.
C) A large sample increases the expected return of the portfolio.
A) Assuming that the return distribution remains reasonably stable over the entire history, a longer sample period increases the precision of the estimate of the expected rate of return, since the standard error decreases as the sample size increases.
Explanation of B:if we assume that mean of the distribution of returns is changing over time randomly (we are unable to determine the nature of this change), the expected return must be estimated from a more RECENT part of the historical period. In this case, we must determine how far back to go in order to select the relevant sample. Thus, in this case, it is likely a disadvantage to use the entire dataset back to e.g., earlier decades such as 1880.
You are considering two alternative two-year investments:
• You can invest in a risky asset with a positive risk premium and returns in each of the two years that will be identically distributed and uncorrelated,
• or you can invest in the risky asset for only one year and then invest the proceeds in a risk-free asset.
Which of the following statements about the first investment alternative (compared with the second) are true?
a. Its two-year risk premium is the same as the second alternative.
b. The standard deviation of its two-year return is the same.
c. Its annualized standard deviation is lower.
d. Its Sharpe ratio is higher.
e. It is relatively more attractive to investors who have lower degrees of risk aversion.
c. Its annualized standard deviation is lower - se pp. 9 in exam notes
Let σ=annual st.dev.of the risky investment, and σ1 = st.dev.of the first investment alternative over the two year period. Then, σ1=√2*σ
Therefore, the annualized standard deviation for the first investment alternative is equal to:
σ1 /2 = σ /√2 < σ
If businesses become more pessimistic about future demand for their products and decide to reduce their capital spending, the real rate of interest will ______.
If households are induced to save more because of increased uncertainty about their future Social Security benefits, the real rate of interest will ______.
If the Federal Reserve Board undertakes open-market purchases of U.S. Treasury securities in order to increase the supply of money, the real rate of interest will ______.
A) rise, fall, rise
B) fall, rise rise
C) fall, fall fall
D) rise, rise rise
C)
If businesses become more pessimistic about future demand for their products and decide to
reduce their capital spending, the real rate of interest will FALL.
If households are induced to save more because of increased uncertainty about their future Social Security benefits, the real rate of interest will FALL.
If the Federal Reserve Board undertakes open-market purchases of U.S. Treasury securities in order to increase the supply of money, the real rate of interest will FALL.
You are considering the choice between investing $50,000 in a conventional 1-year bank CD offering an interest rate of 5% and a 1-year “Inflation-Plus” CD offering 1.5% per year plus the rate of inflation.
Which is the safer investment?
A) Conventional CD
B) Inflation-plus CD
C) Depends - cannot be determined based on the given information
B) Inflation-plus CD:
The safer investment will be the inflation-plus CD offering, since the investor will be appropriately compensated for any level of inflation rate to materialize over the next year. That is, the real interest rate that you will receive by investing in the inflation plus CD is 1.5% regardless of inflation.
You are considering the choice between investing $50,000 in a conventional 1-year bank CD offering an interest rate of 5% and a 1-year “Inflation-Plus” CD offering 1.5% per year plus the rate of inflation.
Can you tell which offers the higher expected return?
A) Conventional CD
B) Inflation-plus CD
C) Depends - cannot be determined based on the given information
C) Depends - cannot be determined based on the given information
The CD without inflation plus offers a higher expected return if the expected inflation rate will be lower than 3.5%. If the expected inflation rate is higher than 3.5%, then the inflation plus CD offers a higher expected return. In conclusion, the expected return on each investment depends on the expected inflation rate.
You are considering the choice between investing $50,000 in a conventional 1-year bank CD offering an interest rate of 5% and a 1-year “Inflation-Plus” CD offering 1.5% per year plus the rate of inflation.
If you expect the rate of inflation to be 3% over the next year, which is definitely the better investment?
A) Conventional CD
B) Inflation-plus CD
C) Depends - cannot be determined based on the given information
C) Depends - cannot be determined based on the given information.
All equal:
If the inflation rate is expected to be 3%, then the CD without inflation plus offers the highest expected return of 2%, versus 1.5% in the inflation-plus case.
E(r)_CD(Conventional) > E(r)_CD(Inflation Plus)
→ 2% > 1.5%
BUT, unless the inflation rate of 3% is certain, the conventional CD is yet the riskier option.
Therefore there is not a clearly/ definitely “better” investment of the two.
If we observe a risk-free nominal interest rate of 5% per year and a risk-free real rate of 1.5% on inflation-indexed bonds, can we infer that the market’s expected rate of inflation is 3.5% per year?
A) Yes
B) No
C) Depends
B) NO
We CANNOT assume that the entire difference between the risk-free nominal rate (on conventional CDs) of 5% and the real risk-free rate (on inflation-plus CDs) of 1.5% is the expected rate of inflation. Part of the difference is likely a risk premium associated with the uncertainty surrounding the real rate of return on conventional CDs. This implies that the expected rate of inflation is less than 3.5% per year.
Which risk is non-diversifiable?
A) Systematic risk
B) Non-systematic risk
Systematic risk refers to macroeconomic risks. This is a common factor that affects all security returns. The market factor, m, measures unanticipated developments in the macroeconomy.
The systematic component of a portfolio variance, β_P^2 σ_M^2 depends on the average beta coefficient of the individual securities. This part of the risk depends on portfolio beta and σ_M^2 and will persist regardless of the extent of portfolio diversification. No matter how many stocks are held, their common exposure to the market will result in a positive portfolio beta and be reflected in portfolio systematic risk. I.e., systematic risk is non-diversifiable.
Which of the following are examples of common economic factors? I.e., sources of systematic risk. Select 1-4 A) business cycles B) stock repurchase C) interest rates D) cost of natural resources
Common economic factors/“Shocks” refers to unexpected changes to macroeconomic variables that cause, simultaneously, correlated shocks in the rates of return on stocks across the entire market.
ANSWER: all options are correct except B
A scatter diagram plots returns of one security versus _____.
A) its price
B) returns of another security or benchmark
C) excess return of the same security, relative to the risk-free rate
D) excess return of the same security, relative to market excess return
CORRECT: B)
A scatter diagram plots returns of one security versus returns of another security (or benchmark such as a market). Each point represents one PAIR of returns for a given holding period.
A regression equation describes the average relationship between a dependent variable and one or more explanatory variables. In this context, residuals captures______
A) Parts of stock returns are not explained by the explanatory variable. They measure the impact of firm-specific events during a particular period.
B) The risks that are non-diversifiable and therefore not captured by the explanatory variables.
A regression equation describes the average relationship between a dependent variable and one or more explanatory variables. In this context, residuals capture Parts of stock returns not explained by the explanatory variable. They measure the impact of firm-specific events during a particular period.
A IS CORRECT
A security characteristic line (SCL) plots_____
A) the excess return on a security over the risk-free rate as a function of the excess return on the market.
B) the excess return on a security against its price
C) the returns of one security against the return of another security
D) the return of a security against the excess return of the same security relative to the risk-free rate
A) IS CORRECT:
A security characteristic line (SCL) plots the excess return on a security over the risk-free rate as a function of the excess return on the market.
Following is NOT true about the Information Ratio:
A) It is a version of a reward-to-risk ratio (another example is Sharpe).
B) It divides the alpha of the portfolio by the systematic risk of the portfolio.
C) It quantifies the trade-off between alpha and diversifiable risk, and it measures abnormal return per unit of risk that in principle could be diversified away by holding a market.
D) All of the above are true
WRONG: B & D
B) It divides the alpha of the portfolio by the NON-systematic risk of the portfolio. This is the firm-specific risk of the portfolio, called “tracking error” in the industry - which CAN be diversified away. Thus, IR quantifies the trade-off between alpha and diversifiable risk, and it measures abnormal return per unit of risk that in principle could be diversified away by holding a market.
IR = α_p/ σ(e_P )
What are the advantages of the index model compared to the Markowitz procedure for obtaining an efficiently diversified portfolio? What are its disadvantages?
Advantages:
- Reduced number of estimates required – the large number of estimates required for the Markowitz procedure can result in large aggregate estimation errors when implementing the procedure.
- Takes into account specialization of labor in security analysis. An advantage of the index model (relative to Markowitz model) is its simple way of computing covariances across industries.
Disadvantage:
- The index model’s assumption that return residuals are uncorrelated. This assumption will be incorrect if the index omits a significant risk factor.
How does the magnitude of firm-specific risk affect the extent to which an active investor will be willing to depart from an indexed portfolio?
A) the higher the firm-specific risk of an asset, the higher the willingness to include a larger weight of this specific asset in an active risky portfolio
B) the higher the firm-specific risk of an asset, the lower the willingness to include a larger weight of this specific asset in an active risky portfolio
CORRECT: B)
the higher the firm-specific risk of an asset, the lower the willingness to include a larger weight of this specific asset in an active risky portfolio.
Other tings equal, w^0 (initial guess of asset weight in active portfolio) is smaller the greater the residual variance of a candidate asset for inclusion in the portfolio (σ^2 (e_Active)). Further, regardless of beta, when w^0 decreases, so does w*(the optimal asset weight in active portfolio).
Therefore, other things equal, the greater the residual variance of an asset, the smaller its position in the optimal risky portfolio. That is, increased firm-specific risk reduces the extent to which an active investor will be willing to depart from an indexed portfolio.
See pp. 28-29 in Exam Notes
Why do we call alpha a “nonmarket” return premium?
A) it is the portion of the return premium that is independent of the market performance.
B) it is non-diversifiable and is correlated with the beta of the security
C) The lower the alpha (nonmarket risk), the higher the total risk premium
D) All of the above
CORRECT: A)
The total risk premium is equal to = α + (β * market risk premium)
We call alpha the non-market return premium due to the fact that it is the portion of the return premium that is independent from the market performance. That is, the alpha of an asset is DIVERSIFIABLE; as more and more stocks are added to the portfolio, the firm-specific components tend to cancel out, resulting in ever-smaller nonmarket risk.
Why are high-alpha stocks desirable investments for active portfolio managers? Hint: think of the Sharpe Ratio for an optimal risky portfolio
A) A higher alpha entails a lower Sharpe Ratio, which is very desirable for risk-averse investors
B) A higher alpha entails a higher Sharpe Ratio, which is desirable for any active investors - even the risk-averse ones
C) A higher alpha of a security decreases the portfolio alpha, which is desirable for any active investors - even the risk-averse ones
D) None of the options are correct
CORRECT: B) A higher alpha entails a higher Sharpe Ratio, which is desirable for any active investors - even the risk-averse ones.
The Sharpe Ratio:
S_P^2 = S_M^2+[α_A/σ(e_A ) ]^2
Alpha (the numerator in the Sharpe Ratio) is a fixed number that is not affected by the standard deviation of returns (the denominator). Hence, an increase in alpha increases the Sharpe ratio, which indicates a higher reward-to-risk ratio. Since the portfolio alpha is the portfolio-weighted average of the securities’ alphas, then, holding all other parameters fixed, an increase in a security’s alpha results in an increase in the portfolio Sharpe ratio.
In the index model (excess return), the firm-specific risk is measured by:\_\_\_\_ A) beta B) residual standard deviation C) R^2 D) market risk premium (r_m-r_f)
B) Firm-specific risk is measured by the residual standard deviation.
The higher the residual standard deviation, the higher the firm-specific risk of the stock according to the index model (excess return) regression of stocks.
In the index model (excess return), the market risk of a stock is measured by:\_\_\_\_ A) beta B) residual standard deviation C) R^2 D) market risk premium (r_m-r_f)
A) Market risk is measured by beta, the slope coefficient of the regression. A stock with a larger beta coefficient indicates a larger market risk.
In the index model (excess return), the fraction of total variance of return explained by the market return is indicated by: \_\_\_\_ A) beta B) residual standard deviation C) R^2 D) market risk premium (r_m-r_f)
C) In the index model (excess return), the fraction of total variance of return explained by the market return (explained variance) is indicated by R^2. This means that for a larger R^2, the market movement explains a greater fraction of the stock’s total return variability.
R_i^2 = (β_i^2 * σ_M^2) / (σ_i^2 ) =
(Explained Variance) / (Total Variance)
Under the efficient market hypothesis, given an efficient market, which type of stock price analysis will likely generate the higher (more optimistic) stock price and development hereof?
A) Single-Index model
B) Technical analysis
C) Fundamental analysis (analysis of the underlying value of the firm, e.g., profitability and growth prospects)
D) Both technical analysis (B) and fundamental analysis (C) are based on public information, and thus, neither should generate excess profits if markets are operating efficiently.
D) Both technical analysis (B) and fundamental analysis (C) are based on public information, and thus, netiher should generate excess profits if markets are operating efficiently.
Which of the following statements from the EMH chapter (11) is NOT true?
A) Technical analysis focuses on stock price patterns and on proxies for buy or sell pressure in the market
B) Fundamental analysis focuses on the determinants of the underlying value of the firm, such as current profitability and growth prospects
C) Evidence for market efficiency is that stock prices follow a random walk with no discernible predictable patterns that investors can exploit
D) Under market efficiency, only new information will move stock prices, and this information is more likely to be good news than bad news.
E) Market efficiency refers to when market prices reflect all currently available information
WRONG: D) Under market efficiency, only new information will move stock prices, and this information is EQUALLY (NOT MORE) likely to be good news than bad news - i.e., prices follow a RANDOM walk.
Proponents of the efficient market hypothesis often advocate passive as opposed to active investment strategies.
TRUE/ FALSE
Why?
TRUE
The policy of passive investors is to buy and hold a broad-based market index. They expend resources neither on market research nor on frequent purchase and sale of stocks. Under the belief of complete market efficiency, it should be the case that no investors will be able to generate superior returns, because market prices should IMMEDIATELY reflect and react to new information.
Which of the following is NOT true about active versus passive investment?
A) Passive investment is suggested under the strong assumption of market efficiency
B) Management fees are generally higher in passive investment vehicles than active investment vehicles
C) The degree of investment performance transparency for the client is lower under active than passive management
D) Active management entails high costs to personnel to be actively monitoring the market and trading oftentimes aggressively with short time spans, while in passive management, cost-cutting and efficiency are more important
WRONG: B) Management fees are generally higher in ACTIVE (NOT PASSIVE) investment vehicles. This is because active management entails higher costs for the funds (personnel, IT, etc.) and because it targets superior returns for the investors. Correspondingly, fees are higher. (Because of option D)
EXPLANATIONS OF OTHER OPTIONS:
A) Passive investment is suggested under the strong assumption of market efficiency because if an asset manager is confident that it can outsmart and outperform the market (which is only feasible under the absence of complete market efficiency), he/she would pursue an active investment strategy.
C) The degree of investment performance transparency for the client is lower under active than passive management because investors often get an update of the portfolio performance once a month, while you can see the current value of your passive investment holdings whenever preferred.
Even if the market is efficient, an important role exists for portfolio management, which can be particularly valuable to investors. Which of the following is not one of such valuable tasks?
A) Portfolio management can be a valuable addition to the buyer in terms of consulting (which is unique from asset managers who simply invest on behalf of the client).
B) Helping the client understand the benefits of diversification, which is crucial even if the market is totally efficient.
C) Portfolio managers can have a crucial impact on clients in helping them understand and determine a level of risk of their portfolio that is appropriate given their risk tolerance.
D) Consulting on tax considerations for the client, which can be very important in order to improve the after-tax rate of return of the portfolio
E) All of the above are tasks that are valuable for investors, carried out by portfolio managers
CORRECT: E) All of the above are tasks that are valuable for investors, carried out by portfolio managers
EXPLANATION OF OPTIONS
B) Helping the client understand the benefits of diversification, which is crucial even if the market is totally efficient. According to the black model (chapter 8) about the combination of active and passive investment, lack of diversification is the price that you have to pay to pursue alpha. If you believe that there is no alpha, it makes no sense to have a small portfolio. The model argues that if there is no alpha, everything should be passive.
While no market can be perfectly efficient, in well-functioning markets, anomalies ought to be self-destructing. As market participants learn of profitable trading strategies, their attempts to exploit them should move prices to levels at which abnormal profits are no longer available.
TRUE/ FALSE
TRUE
Abnormal returns: return on a stock beyond what would be predicted by market movements alone. E.g., due to announcement or the release of information of the firm.
Predictability of market prices ______ over longer horizons.
A) increases
B) decreases
C) increases or decreases randomly
Predictability of market prices INCREASES (A) over longer horizons.
Research literature from the 80s indicates evidence in favor of predictability with a longer horizon - it is easier to predict e.g., on the yearly or multi-yearly level rather than the daily or weekly level.
If markets are efficient, what should be the correlation coefficient between stock returns for two non-overlapping time periods? A) 0 B) 1 C) -1 D) depends
If markets are efficient, the correlation coefficient between stock returns for two non-overlapping time periods should be 0 (A).
If this is not the case, one could use returns from one period to predict returns in later periods and make abnormal profits – which should not be possible in an efficient market.
Assuming an efficient market:
For Steady Growth Industries that have never missed a dividend payment in its 94-year history, does this make it more attractive to you as a possible purchase for your stock portfolio?
No, the value of dividend predictability would be already reflected in the stock price
The momentum effect is:
A) The tendency for stocks of firms with high ratios of book-to-market value to generate abnormal returns.
B) The tendency of poorly performing stocks and well-performing stocks in one period to continue that abnormal performance in following periods.
C) The tendency of low P/E stocks to exhibit higher average risk-adjusted returns than high P/E stocks.
D) The tendency of investments in stocks of small firms earning abnormal returns.
The momentum effect is (B): The tendency of poorly performing stocks and well-performing stocks in one period to continue that abnormal performance in following periods.
The book-to-market effect is:
A) The tendency for stocks of firms with high ratios of book-to-market value to generate abnormal returns.
B) The tendency of poorly performing stocks and well-performing stocks in one period to continue that abnormal performance in following periods.
C) The tendency of low P/E stocks to exhibit higher average risk-adjusted returns than high P/E stocks.
D) The tendency of investments in stocks of small firms earning abnormal returns.
Book-to-market effect: (A) The tendency for stocks of firms with high ratios of book-to-market value to generate abnormal returns.
The Small-firm effect effect is:
A) The tendency for stocks of firms with high ratios of book-to-market value to generate abnormal returns.
B) The tendency of poorly performing stocks and well-performing stocks in one period to continue that abnormal performance in following periods.
C) The tendency of low P/E stocks to exhibit higher average risk-adjusted returns than high P/E stocks.
D) The tendency of investments in stocks of small firms earning abnormal returns.
The Small-firm effect effect is: D) The tendency of investments in stocks of small firms earning abnormal returns.
The P/E effect is:
A) The tendency for stocks of firms with high ratios of book-to-market value to generate abnormal returns.
B) The tendency of poorly performing stocks and well-performing stocks in one period to continue that abnormal performance in following periods.
C) The tendency of low P/E stocks to exhibit higher average risk-adjusted returns than high P/E stocks.
D) The tendency of investments in stocks of small firms earning abnormal returns.
P/E effect: C) low P/E stocks have exhibited higher average risk-adjusted returns than high P/E stocks. I.e., an investor could earn superior returns simply by buying low P/E securities. This is a market anomaly because it is a piece of information that can be used to improve investment performance, (which should not exist in an efficient market). One possible explanation for this effect is that the neglect to take into account the effect of risk.
- Suppose that we have two companies with the same expected earnings and different levels of risk. The riskier stock, in order to command higher returns, would sell at a lower price, causing its P/E ratio to be lower. Therefore, the P/E effect may simply reflect the effect of risk on stock returns.
Reversal effect: the tendency of poorly performing stocks and well-performing stocks in one period to experience reversals (a change in the opposite direction) in the following periods.
TRUE/ FALSE
TRUE
Neglected-firm effect: investments in stock of less well-known firms have generated abnormal returns.
TRUE/ FALSE
TRUE
Suppose that, after conducting an analysis of past stock prices, you come up with the following observations. Which would appear to contradict the weak form of the efficient market hypothesis?
A) The average rate of return is significantly greater than zero.
B) The correlation between the return during a given week and the return during the following week is zero.
C) One could have made superior returns by buying stock after a 10% rise in price and selling after a 10% fall.
D) One could have made higher-than-average capital gains by holding stocks with low dividend yields.
Suppose that, after conducting an analysis of past stock prices, you come up with the following observations. Which would appear to contradict the weak form of the efficient market hypothesis?
C) One could have made superior returns by buying stock after a 10% rise in price and selling after a 10% fall. Buying stocks when prices are rising and selling them at lower prices can by definition not result in superior returns. Investors should always try to buy at a lower cost and sell at a higher price to make profit.
Which of the following statements are true if the efficient market hypothesis holds?
a. It implies that future events can be forecast with perfect accuracy.
b. It implies that prices reflect all available information.
c. It implies that security prices change for no discernible reason.
d. It implies that prices do not fluctuate.
b. It implies that prices reflect all available information.
Is the following phenomena consistent with of violation of the EMH?
Nearly half of all professionally managed mutual funds are able to outperform the S&P 500 in a typical year.
Consistent – simply based on pure luck, half of all managers should be able to beat the market in any year.
Is the following phenomena consistent with of violation of the EMH?
Money managers who outperform the market (on a risk-adjusted basis) in one year are likely to outperform the market in the following year.
Inconsistent – following the notion of random walk, the outperformance in one year should not result in a likely outperformance of the market in the future. This would be the basis of an “easy money” rule: simply invest with last year’s best managers.
Is the following phenomena consistent with of violation of the EMH?
Stock prices tend to be predictably more volatile in January than in other months.
Consistent – in contrast to predictable returns, predictable volatility does not convey a means to earn abnormal returns.
Is the following phenomena consistent with of violation of the EMH?
Stock prices of companies that announce increased earnings in January tend to outperform the market in February
Inconsistent – under the EMH, abnormal performance ought to occur in January when earnings are announced – not later.
Good News, Inc., just announced an increase in its annual earnings, yet its stock price fell. Is there a rational explanation for this phenomenon?
Yes - The market may have estimated even greater increase in earnings. Compared to expectations, the announcement may have been a disappointment.
Shares of small firms with thinly traded stocks tend to show positive CAPM alphas. Is this a violation of the efficient market hypothesis?
YES/ NO
NO
Positive CAPM alphas among thinly traded stocks do not necessarily violate the efficient market hypothesis since these higher alphas are actually risk premiums, not market inefficiencies. Less traded stocks entails lower liquidity, which results in investors requiring a higher expected return to compensate for the illiquidity/risk. Thus, a positive alpha reflects the higher risk connected to the stock, and does not necessarily entail a violation of EMH.
Which of the following types of information processing errors concerns that investors are slow to update their beliefs and underreact to new information?
A) memory bias
B) overconfidence
C) conservatism
D) representativeness (sample size neglect)
C) conservatism: investors are slow to update their beliefs and underreact to new information.
Which of the following types of information processing errors concerns: putting too much weight on recent experiences. I.e., wrongfully projecting that recent economic events will be long-lasting and affect future economic conditions, rather than putting focus on observing the historical data for a longer period. This leads to forecasting errors.
A) memory bias
B) overconfidence
C) conservatism
D) representativeness (sample size neglect)
A) memory bias
If you trade actively as an investor, however, fail to overperform the market, it is a clear example of _____
A) memory bias
B) overconfidence
C) conservatism
D) representativeness (sample size neglect)
if you trade actively as an investor, however, fail to overperform the market, it is a clear example of (B) OVERCONFIDENCE.
overconfidence: investors overestimate their abilities and the precision of their forecasts
When investors are too quick to infer a pattern or trend from a small sample, which may lead to overreaction by looking at a too small sample and jump to conclusions. E.g., observing a slight positive trend and believing that the economy is booming. This is an example of which type of information processing error?
A) memory bias
B) overconfidence
C) conservatism
D) representativeness (sample size neglect)
This is an example of REPRESENTATIVENESS (SAMPLE SIZE NEGLECT).
Sample size neglect (representativeness bias) is the tendency to believe that a small sample is reliably representative of a broad population and therefore to infer patterns too quickly.
Which of the following types of behavioral bias in finance concerns:
presenting data in a way that is suitable to a given objective of the presenter, which can affect investors’ decisions.
A) regret avoidance
B) framing
C) mental accounting
D) loss aversion (prospect theory)
B) framing: when decisions are affected by how choices are described
Which of the following types of behavioral bias in finance concerns:
When investors segregate accounts and take risks with their gains that they would not take with their principal.
A) regret avoidance
B) framing
C) mental accounting
D) loss aversion (prospect theory)
C) mental accounting: when individuals mentally segregate assets into independent accounts rather than viewing them as part of a unified portfolio.
Which of the following types of behavioral bias in finance concerns:
A tendency of investors keeping certain stocks for too long because the return is negative. I.e., they are more willing to sell a stock that has increased in value than one which has decreased in value.
A) regret avoidance
B) framing
C) mental accounting
D) loss aversion (prospect theory)
D) loss aversion (prospect theory): If an investor makes money, he/she becomes more risk adverse, and if they lose, they are willing to take more risk. This explains why a stock that you hold decreases in value, you are reluctant to sell the stock and make a loss due to the belief that the stock price might bounce back up.
Investors tend to blame themselves more when an unconventional or risky bet turns out badly rather than if they were to go for a more safe and conventional investment. Due to this preference to avoid regret and self-blame, investors may tend to allocate assets in more conventional investments. This is a case of: A) regret avoidance B) framing C) mental accounting D) loss aversion (prospect theory)
A) regret avoidance
Which of the following limits to arbitrage concers:
Even if a security is mispriced, it still can be risky to attempt to exploit the mispricing. This risk lies in the intrinsic value and market value taking too long to converge.
A) Model risk
B) Implementation costs & cost of short-selling
C) Fundamental risk
D) Loss aversion
C) Fundamental risk: even if a security is mispriced, it still can be risky to attempt to exploit the mispricing. This risk lies in the intrinsic value and market value taking too long to converge.
“Markets can remain irrational longer than you can remain solvent”. The risk of “waiting” for the market to adjust to equilibrium may not be feasible, and therefore, exploiting arbitrage opportunities can be extremely risky if the time-horizon is limited.
Remember: the case in the Big Short, where the short sellers were waiting for the market to correct (the bubble to burst) - but almost went bankrupt in the meantime
Transactions costs and restrictions on short selling can limit arbitrage activity. Especially when it comes to trading single stocks, it is difficult to play against the market. Meanwhile, the cost of short-selling is not cheap, and the activity itself can entail significant risks.
The above description is of which limit to arbitrage?
A) Model risk
B) Implementation costs & cost of short-selling
C) Fundamental risk
D) Loss aversion
B) Implementation costs & cost of short-selling