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In: Finance

Hull​ Consultants, a famous think tank in the​ Midwest, has provided probability estimates for the four...

Hull​ Consultants, a famous think tank in the​ Midwest, has provided probability estimates for the four potential economic states for the coming year. The probability of a boom economy is 12%​, the probability of a stable growth economy is 18​%, the probability of a stagnant economy is 45​%, and the probability of a recession is 25​%. Calculate the variance and the standard deviation of the three​ investments: stock, corporate​ bond, and government bond. If the estimates for both the probabilities of the economy and the returns in each state of the economy are​ correct, which investment would you​ choose, considering both risk and​ return?   Investment Forecasted Returns for Each Economy Boom Stable Growth Stagnant Recession   Stock 23​% 14​% 33​% −15​%   Corporate bond 10​% 7​% 5​% 4​%   Government bond 9​% 6​% 4​% 3​% ​Hint: Make sure to round all intermediate calculations to at least seven​ (7) decimal places. The input​ instructions, phrases in parenthesis after each answer​ box, only apply for the answers you will type. What is the variance of the stock​ investment? What is the standard deviation of the stock​ investment? What is the variance of the corporate bond​ investment? What is the standard deviation of the corporate bond​ investment? What is the variance of the government bond​ investment? What is the standard deviation of the government bond​ investment?

Solutions

Expert Solution

Stock
Scenario Probability Return '=rate of return * probability Actual return -expected return(A) (A)^2* probability
Boom 0.12 23.00% 2.76% 6.62% 0.000526
stable 0.18 14.00% 2.52% -2.38% 0.000102
stagnant 0.45 33.00% 14.85% 16.62% 0.012430
recession 0.25 -15% -3.75% -31.38% 0.024618
Expected return = sum of weighted return = 16.38% Sum= 0.037676
Standard deviation of Stock '=(sum)^(1/2) 19.41%
Coefficient of variation= STD DEV/RETURN= 1.18499348
Govt bond
Scenario Probability Return '=rate of return * probability Actual return -expected return(B) (B)^2* probability
Boom 0.12 9% 1.08% 4.29% 0.000221
stable 0.18 6% 1.08% 1.29% 0.000030
stagnant 0.45 4% 1.80% -0.71% 0.000023
recession 0.25 3% 0.75% -1.71% 0.000073
Expected return = sum of weighted return = 4.71% Sum= 0.000347
Standard deviation of Govt bond '=(sum)^(1/2) 1.86%
Coefficient of variation= STD DEV/RETURN= 0.395263859
corp bond
Scenario Probability Return '=rate of return * probability Actual return -expected return(C) (C)^2* probability
Boom 0.12 10% 1.20% 5.29% 0.000336
stable 0.18 7% 1.26% 2.29% 0.000094
stagnant 0.45 5% 2.25% 0.29% 0.000004
recession 0.25 4% 1.00% -0.71% 0.000013
Expected return = sum of weighted return = 5.71% Sum= 0.000447
Standard deviation of corp bond '=(sum)^(1/2) 2.11%
Coefficient of variation= STD DEV/RETURN= 0.370099407

choose corporate bond as it has lowest coefficient of variation


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