Essentials Of Investments
11th Edition
ISBN: 9781260013924
Author: Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher: Mcgraw-hill Education,
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3) If two securities are perfectly negatively correlated then the global-minimum variance portfolio has a standard deviation that is always
A) greater than zero.
B) equal to zero.
C) equal to the sum of the securities' standard deviations.
D) equal to −1.
Choose the correct answer and justify it.
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- Question 1 Are the following statements true or false? Provide a short justification for your answer. (You are evaluated on your justification.) Remember that a statement is false if any part of the statement is false. A single correct counterexample is sufficient to show that a statement is false. a) assets A, B, C, with expected returns and standard deviations: Suppose you are a mean-variance optimizer. The risk-free rate is 3%. There are three risky E [řa] = 10%, SD [FA] = 5% E [řB] = 15%, SD [řB] = 7% E [řc] = 12%, SD [řc] = 9% You cannot invest in all three risky assets. Instead, you have to choose whether to invest in only assets (A, B), or only assets (A, C). Asset B mean-variance dominates asset C, since it has higher return and lower standard deviation than asset C. Thus, as long as you are risk-averse, you would always prefer the set of assets (A, B) to the set assets (A, C). b) the same market B's. The covariance matrix between A, B, C is: Suppose the CAPM holds. Consider…arrow_forwardich of the following will not reduce risk in a portfolio? Select one: a. Selecting two securities that are perfectly positively correlated. b. Selecting two securities that are positively correlated. c. Selecting two securities that are perfectly negatively correlated. d. Selecting two securities that are negatively correlated.arrow_forwardAccording to modern portfolio theory, pair-wise covariance is more important to total portfolio risk than individual security variance. True or Falsearrow_forward
- Consider the following securities: state Probability A B A B H M L 0.2 0.5 0.3 с 6 10 6 3 7 12 2 5 14 1. The expected payoff of A is: 2. The standard deviation of A is: 3. If the price of A is 3, its expected return is: 4. The covariance between A and B is: 5. The correlation coefficient between A and B is: 6. Is it possible to build a portfolio that has zero variance using A and C? YES/ NOarrow_forwardPortfolios that offer the highest expected return for a given variance (or standard deviation) are known as efficient portfolios. O true falsearrow_forwardWhich of the following statements are correct? I.The standard deviation is a measure of risk.II.The variance of yearly returns is roughly the variance of monthly returns multiplied with 12.III.To decide whether asset A is more risky than asset B we can either use their standard deviations or their variances. Group of answer choices II and III only I, II and III I and II only I and III onlyarrow_forward
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