Use the following table to answer the question below. Expected ret. std. dev. S&P500 18% 19% T-bill 3% 0% What is the level of risk aversion that will make an investor neither borrow nor lend? Assume that the lending rate equals the T-bill rate. Round your answer to 2 decimal places.
Expected return of S&P 500 Risky portfolio =
18%
standard deviation= 19%
Risk free rate= 3%
we need to Calculate level of risk aversion that will make an
investor neither borrow nor lend. it means 100% Invested in Risky
portfolio
Formula for investment in risky portfolio
Weight of ORP = ( Expected retun of Risky portfolio - Risk free
rate)/(risk aversion coefficiennt * Std. dev. of ORP
^2)
100 % = (18%-3%)/(A*(19%)^2)
(A*(19%)^2)=. 15%/100%
A =0.15/(0.19)^2
A 4.155124654
So Risk aversion Coefficient should be 4.16
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