Suppose that the agent has initial wealth A = 1 to invest in two financial assets,...
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Suppose that the agent has initial wealth A = 1 to invest in two financial assets, one riskless and one risky. The price of the riskless asset is 1 and its return is 2, and short-selling on this asset is allowed. The price of the risky asset is 1 and its return is r with probability distribution: r = 1 with probability pi r = 2 with probability p2 r = 3 with probability p3 Short-selling the risky asset is not allowed. If the agent invests a in the risky asset and 1-a in the riskless asset, find the support of the probability distribution = (T1, T2, T3) of the agent's portfolio return rp. If the agent maximises a von Neumann- Morgestern utility function u(W) over final wealth W, show that the optimal choice of a is positive if and only if the expectation of r is greater than 2. [Hint: find the first derivative of u(.) and calculate its value when a = 0.] Suppose that the agent has initial wealth A = 1 to invest in two financial assets, one riskless and one risky. The price of the riskless asset is 1 and its return is 2, and short-selling on this asset is allowed. The price of the risky asset is 1 and its return is r with probability distribution: r = 1 with probability pi r = 2 with probability p2 r = 3 with probability p3 Short-selling the risky asset is not allowed. If the agent invests a in the risky asset and 1-a in the riskless asset, find the support of the probability distribution = (T1, T2, T3) of the agent's portfolio return rp. If the agent maximises a von Neumann- Morgestern utility function u(W) over final wealth W, show that the optimal choice of a is positive if and only if the expectation of r is greater than 2. [Hint: find the first derivative of u(.) and calculate its value when a = 0.]
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To find the support of the probability distribution T1 T2 T3 of the agents portfolio return rp we need to consider the different possible outcomes bas... View the full answer
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