Consider two individuals (1 and 2) and assume their preferences over gambles over [0, infinity) can be represented respectively by U1 (p) = Sigma p (ai) multiply by squareroot of (ai) and U2 (p) = Sigma p (ai) multiply by exponential of (ai), where p(ai) is the probability p assigns to (ai). Are the two individuals risk-averse, risk-loving or risk-neutral? Compute the Arrow-Pratt measure of absolute risk aversion for the two individuals? Compute the certainty equilvalent for the two agents for the gamble that pays 0 with probability 1/2 and 3 with probability 1/2 What is the expected value of this lottery? What can you say about the comparison between the expected value and the certainty equivalent (this quantity is called risk premium)?

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Consider two individuals (1 and 2) and assume their preferences over gambles
over [0, infinity) can be represented respectively by U1 (p) = Sigma p (ai) multiply by squareroot of (ai) and U2 (p) = Sigma p (ai) multiply by exponential of (ai), where p(ai) is the probability p assigns to (ai). Are the two individuals risk-averse, risk-loving or risk-neutral? 
 Compute the Arrow-Pratt measure of absolute risk aversion for the two
individuals?     Compute the certainty equilvalent for the two agents for the gamble that
pays 0 with probability 1/2
and 3 with probability 1/2
What is the expected value of this lottery? What can you say about the comparison between
the expected value and the certainty equivalent (this quantity is called
risk premium)?

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