Question

In: Finance

You are given the following information: State of Economy Return on Stock A Return on Stock...

You are given the following information:

State of
Economy
Return on
Stock A
Return on
Stock B
Bear .109 .052
Normal .108 .155
Bull .080 .240


Assume each state of the economy is equally likely to happen.

Calculate the expected return of each stock. (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)

Expected return
Stock A %
Stock B %

  
Calculate the standard deviation of each stock. (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)

Standard deviation
Stock A %
Stock B %


What is the covariance between the returns of the two stocks? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 6 decimal places, e.g., 32.161616.)

Covariance             

What is the correlation between the returns of the two stocks? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to 4 decimal places, e.g., 32.1616.)

Correlation            

Solutions

Expert Solution

STOCK A
p A A*p Da=A-0.099 Ea=(Da^2) Ea*p
State of Economy Probability Return of stock A Return*Probability Deviation from expected return Deviation Squared (Deviation Squared)*(Probability)
Bear (1/3) 0.109 0.036333 0.01           0.0001      0.0000333
Normal (1/3 0.108 0.036 0.009       0.000081 0.000027
Bull (1/3) 0.08 0.026667 -0.019 0.000361 0.000120333
SUM 0.099 SUM      0.0001807
Expected Return of stockA 0.099
Variance of Stock A        0.0001807
Standard Deviation =Square Root of Variance
Standard Deviation of Stock A 0.01344123 (Square Root of 0.0001807)
STOCK B
p B B*p Db=B-0.149 Eb=(Db^2) Eb*p
State of Economy Probability Return of stock B Return*Probability Deviation from expected return Deviation Squared (Deviation Squared)*(Probability)
Bear (1/3) 0.052 0.017333 -0.097           0.0094      0.0031363
Normal (1/3 0.155 0.051667 0.006       0.000036 0.000012
Bull (1/3) 0.240 0.08 0.091 0.008281 0.002760333
SUM 0.149 SUM      0.0059087
Expected Return of stockB 0.149
Variance of Stock B        0.0059087
Standard Deviation =Square Root of Variance
Standard Deviation of Stock B 0.076867852 (Square Root of 0.0059087)
Expected Return
Stock A 9.90%
Stock B 14.90%
Standard Deviation
Stock A 1.34%
Stock B 7.69%
CALCULATION OF COVARINCE
p Da Db F=Da*Db*p
State of Economy Probability Deviation from expected return of StockA Deviation from expected return of StockB (Deviation of A)*(Deviation of B)* Probability
Bear (1/3) 0.01 -0.097 -0.0003233
Normal (1/3 0.009 0.006 0.000018
Bull (1/3) -0.019 0.091 -0.0005763
SUM -0.0008817
Covariance between return of A&B -0.000881667
Correlation between Stock A & Stock B=Covariance (a,b)/((Standard Deviation of A)*(Standard Deviation of B))
Correlation between return of A&B -0.853337165 (-0.0008817/(0.01344123*0.076867852)

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