Investments
11th Edition
ISBN: 9781259277177
Author: Zvi Bodie Professor, Alex Kane, Alan J. Marcus Professor
Publisher: McGraw-Hill Education
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Chapter 8, Problem 19PS
Summary Introduction
To determine: The expected performance is affected.
Introduction: During the constructing of portfolio, the investor always focuses on to reduce risks. High risk portfolio is being made up of more than 70% of equities.
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The regression analysis is normally depicted as "y = Ax+ B." What does "A" indicate in the equation?
A) It is the expected change in the independent variable for a one-unit change in the dependent variable
OB) It is the significance level for the test
OC) It is the expected change in the dependent variable for a one-unit change in the independent variable
OD) The confidence interval
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…
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