Corporate Finance: The Core (4th Edition) (Berk, DeMarzo & Harford, The Corporate Finance Series)
4th Edition
ISBN: 9780134202648
Author: Jonathan Berk, Peter DeMarzo
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 51P
What is the risk premium of a zero-beta stock? Does this mean you can lower the volatility of a portfolio without changing the expected return by substituting out any zero-beta stock in a portfolio and replacing it with the risk-free asset?
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Students have asked these similar questions
Which of the following(s) would be ways to reject the CAPM?
a
showing that there exist a stock with zero beta with the market earns an expected return higher than the risk free rate
b
showing that there exist a stock that earns higher expected return than the market
c
Showing that a portfolio consistently generates a negative alpha
d
Showing that a certain factor predicts expected return even after controlling for market beta
What is the difference between a diversifiable riskand a nondiversifiable risk? Should stock portfoliomanagers try to eliminate both types of risk?
According to the Capital Asset Pricing Model (CAPM), risky stocks pay a risk premium based on their level of systematic risk. Thus, a risky stock should have a higher expected return than a risk-free security unless it has a zero or negative beta.
True
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Chapter 11 Solutions
Corporate Finance: The Core (4th Edition) (Berk, DeMarzo & Harford, The Corporate Finance Series)
Ch. 11.1 - What is a portfolio weight?Ch. 11.1 - How do we calculate the return on a portfolio?Ch. 11.2 - What does the correlation measure?Ch. 11.2 - How does the correlation between the stocks in a...Ch. 11.3 - Prob. 1CCCh. 11.3 - Prob. 2CCCh. 11.4 - Prob. 1CCCh. 11.4 - Prob. 2CCCh. 11.4 - Prob. 3CCCh. 11.5 - What do we know about the Sharpe ratio of the...
Ch. 11.5 - If investors are holding optimal portfolios, how...Ch. 11.6 - When will a new investment improve the Sharpe...Ch. 11.6 - Prob. 2CCCh. 11.7 - Prob. 1CCCh. 11.7 - Prob. 2CCCh. 11.8 - Prob. 1CCCh. 11.8 - According to the CAPM, how can we determine a...Ch. 11 - You are considering how to invest part of your...Ch. 11 - You own three stocks: 600 shares of Apple...Ch. 11 - Consider a world that only consists of the three...Ch. 11 - There are two ways to calculate the expected...Ch. 11 - Using the data in the following table, estimate...Ch. 11 - Use the data in Problem 5, consider a portfolio...Ch. 11 - Using your estimates from Problem 5, calculate the...Ch. 11 - Prob. 8PCh. 11 - Suppose two stocks have a correlation of 1. If the...Ch. 11 - Arbor Systems and Gencore stocks both have a...Ch. 11 - Prob. 11PCh. 11 - Suppose Avon and Nova stocks have volatilities of...Ch. 11 - Prob. 13PCh. 11 - Prob. 14PCh. 11 - Prob. 16PCh. 11 - What is the volatility (standard deviation) of an...Ch. 11 - Prob. 18PCh. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Suppose Ford Motor stock has an expected return of...Ch. 11 - Prob. 22PCh. 11 - Prob. 23PCh. 11 - Prob. 24PCh. 11 - Prob. 25PCh. 11 - Prob. 26PCh. 11 - A hedge fund has created a portfolio using just...Ch. 11 - Consider the portfolio in Problem 27. Suppose the...Ch. 11 - Prob. 29PCh. 11 - Prob. 30PCh. 11 - You have 10,000 to invest. You decide to invest...Ch. 11 - Prob. 32PCh. 11 - Prob. 33PCh. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - Prob. 36PCh. 11 - Assume all investors want to hold a portfolio...Ch. 11 - In addition to risk-free securities, you are...Ch. 11 - You have noticed a market investment opportunity...Ch. 11 - Prob. 40PCh. 11 - When the CAPM correctly prices risk, the market...Ch. 11 - Prob. 45PCh. 11 - Your investment portfolio consists of 15,000...Ch. 11 - Suppose you group all the stocks in the world into...Ch. 11 - Prob. 48PCh. 11 - Consider a portfolio consisting of the following...Ch. 11 - Prob. 50PCh. 11 - What is the risk premium of a zero-beta stock?...
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- What is a characteristic line? How is this line used to estimate a stocks beta coefficient? Write out and explain the formula that relates total risk, market risk, and diversifiable risk.arrow_forwardWhat should be the risk premium and return on a stock with a Beta of zero under the Capital Asset Pricing Model (CAPM)? What about the risk premium and return on a stock with a Beta of 1? In a world of certainty, investors will always invest in the asset with the highest return. In the real world, investors hold a diversified portfolio of securities. Why is this the case? Theoretically, returns on stocks or assets can be negatively correlated. In the real world, however, we usually encounter only positive correlations. Whymay this be the case?arrow_forwardBased on the CAPM model, a stock with a negative beta has which of the following characteristics? A. An expected return less than zero. B. An expected return equal to the risk-free rate. C. Since these are so rare, the CAPM model does not account for negative beta stocks. D. An expected return less than the risk-free rate.arrow_forward
- n general, can the risk of a portfolio be reduced to zero byincreasing the number of stocks in the portfolio? Explainarrow_forwardVolatility smile” is referred to as evidence against the Black-Scholes model. Why is that? A) Black-Scholes model assumes that different options on a given stock have different values for implied volatility b.) Volatility of returns on one and the same stock, over one and the same future period of time, can only take one value C) Black-Scholes model generates option premium close to the observed premium if the observed stock volatility is usedarrow_forwardWhich one of the following expressions about risk and returns is wrong? A. In general, one reason why a stock is riskier than a bond is that because cash flows from a bond are known and promised, whereas cash flows from a stock are neither known nor promised. B. According to CAPM model, a well-diversified portfolio will have a beta which equals to 0. C. Risk premium is the extra return provided on risky assets to compensate for risk. The difference between risky return and the risk-free return. D. Unexpected return happened because new information came to light which caused our expectations about prices and returns to change.arrow_forward
- If the stock price falls and the call price rises, then what has happened to the call option’s implied volatility?arrow_forwardExplain how the portfolio approach to investment allows the reduction of risk and why Beta therefore is the most appropriate measure of stock risk?arrow_forwardWhich of the following statements is CORRECT? a. The higher the correlation between the stocks in a portfolio, the lower the risk inherent in the portfolio. b. An investor can eliminate almost all risk if he or she holds a very large and well diversified portfolio of stocks. c. Once a portfolio has about 40 stocks, adding additional stocks will not reduce its risk by even a small amount. d. An investor can eliminate almost all diversifiable risk if he or she holds a very large, well-diversified portfolio of stocks. e. An investor can eliminate almost all market risk if he or she holds a very large and well diversified portfolio of stocks.arrow_forward
- Why do we call alpha a “nonmarket” return premium? Why are high-alpha stocks desirable investments for active portfolio managers? With all other parameters held fixed, what would hap-pen to a portfolio’s Sharpe ratio as the alpha of its component securities increased?arrow_forwardThe security market line (SML) is an equation that shows the relationship between risk as measured by beta and the required rates of return on individual securities. The SML equation is given below: If a stock's expected return plots on or above the SML, then the stock's return is sufficient to compensate the investor for risk. If a stock's expected return plots below the SML, the stock's return is insufficient to compensate the investor for risk.The SML line can change due to expected inflation and risk aversion. If inflation changes, then the SML plotted on a graph will shift up or down parallel to the old SML. If risk aversion changes, then the SML plotted on a graph will rotate up or down becoming more or less steep if investors become more or less risk averse. A firm can influence market risk (hence its beta coefficient) through changes in the composition of its assets and through changes in the amount of debt it uses. Quantitative Problem: You are given the following…arrow_forwardAssume that the CAPM assumptions hold. Consider the following statements:i. A stock with a beta below zero will tend to move in the same direction as the market but will tend to move less aggressively in that direction than the market does.ii. Alpha measures the additional risk we take on top of the risk of the market portfolio.arrow_forward
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