Suppose you are a risk-averse investor whose preferences can be represented by the following utility function:...
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Suppose you are a risk-averse investor whose preferences can be represented by the following utility function: U = E(W) - VAR(W), where W is wealth at the end of the period. Initially you have no wealth, and the market bank offers you the following 2 mutually exclusive alternatives: Alternative 1: take debt for $1 million with risk-free interest rate (R->0), to invest in an asset with return R > RF and volatility . Alternative 2: take debt for $2 million with interest rate (R=> 0), to invest $1 million in each of 2 assets with expected return R > RF y R > RF and volatilities 1. and . respectively. The correlation between the returns of both assets is p. All these rates are gross returns, and the volatilities also refer to gross returns. The bank executive tells you that most people prefer Alternative 2 because it allows for better diversification. You are not so sure that this is true and decide to check different cases: a) Show that if R = R, = , and p = 0, it would be an inconsistency to accept Alternative 2 if the first one is rejected as too risky. Explain b) Assume from now on that you are right at the point of indifference between accepting and rejecting the first alternative: (b1) If R = R2 and p = 0, what relationship must exist between and for you to accept Alternative 2? b2) If R = R and p = -1 what relationship must exist between and for you to accept Alternative 2? Suppose you are a risk-averse investor whose preferences can be represented by the following utility function: U = E(W) - VAR(W), where W is wealth at the end of the period. Initially you have no wealth, and the market bank offers you the following 2 mutually exclusive alternatives: Alternative 1: take debt for $1 million with risk-free interest rate (R->0), to invest in an asset with return R > RF and volatility . Alternative 2: take debt for $2 million with interest rate (R=> 0), to invest $1 million in each of 2 assets with expected return R > RF y R > RF and volatilities 1. and . respectively. The correlation between the returns of both assets is p. All these rates are gross returns, and the volatilities also refer to gross returns. The bank executive tells you that most people prefer Alternative 2 because it allows for better diversification. You are not so sure that this is true and decide to check different cases: a) Show that if R = R, = , and p = 0, it would be an inconsistency to accept Alternative 2 if the first one is rejected as too risky. Explain b) Assume from now on that you are right at the point of indifference between accepting and rejecting the first alternative: (b1) If R = R2 and p = 0, what relationship must exist between and for you to accept Alternative 2? b2) If R = R and p = -1 what relationship must exist between and for you to accept Alternative 2?
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Related Book For
Microeconomics An Intuitive Approach with Calculus
ISBN: 978-0538453257
1st edition
Authors: Thomas Nechyba
Posted Date:
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