Assignment 9: R Help Center

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Warning: The hard deadline has passed. You can attempt it, but you will not get credit for it. You are welcome to try it as a learning exercise.

This assignment refers back to the Week 9 R programming assignment. You should complete that first as the questions in this assignment will relate to the output generated by your code.

Question 1

(10) Which two assets have the highest correlation?

Question 2

(10) What is the weight of Microsoft in the global minimum variance portfolio?

Question 3

(10) What is the standard deviation of the global minimum variance portfolio?

Question 4

(10) What is the expected return of the global minimum variance portfolio?

Question 5

(10) What happens to the global minimum variance portfolio if short sales are restricted?

Question 6

(10) Of the four stocks, determine the stock with the largest estimated expected return. Use this maximum average return as the target return for the computation of an efficient portfolio allowing for short-sales. What is the weight of Microsoft in this portfolio?

Question 7

(10) Of the four stocks, determine the stock with the largest estimated expected return. Use this maximum average return as the target return for the computation of an efficient portfolio not allowing for short-sales. What is the weight of Microsoft in this portfolio?

Question 8

(10) Using the fact that all efficient portfolios can be written as a convex combination of two efficient portfolios, compute efficient portfolios as convex combinations of the global minimum variance portfolio and the efficient portfolio that was computed in question six. What is the expected return of the portfolio when α=.5?

Question 9

(10) What is the weight of Microsoft in the tangency portfolio with short sales allowed?

Question 10

(10) What is the weight of Microsoft in the tangency portfolio with short sales not allowed?
    
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