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We change the setting of question 1 slightly to discuss the effect of moral hazard. x still affects the probability of getting sick. The probability of getting sick is 0.05 -0.03x and the expenditure is 200 if being sick. Moreover, health condition depends on effort. The relation between effort and r is 2 = to exp(e-0.5). xo is a random variable that follows uniform distribution U (0,1), and e is the effort level that can take three values: 0, 0.3, and 0.5. The private cost of effort is cle) = 10e. 2. Can you provide the range of co that will optimally pay effort 0, 0.3, and 0.5 respectively when they correctly calculate their probability of being sick? (10) 3. We consider a health insurance policy that covers the loss in full, and the premium is 6.5. For the following questions, assume everyone has to = 0.8. (20) (a) If buyers are risk neutral, will they purchase the policy? Given the optimal decision of whether or not to purchase the policy, what is the resulting probability of getting sick, and what is the expected medical expenditure (before the insurer reimburses, if any)? (10) (b) Is the insurer's profit positive, negative, or zero? Does there exist a premium level that satisfies the following two conditions: (i) the buyers are willing to purchase the insurance; (ii) the insurer earns a nonnegative profit? Explain. (5') (C) Suppose your are a consultant to the insurer. What contractual changes will you change to make the market exist such that the two conditions above hold? Justify your plan in less than 2 sentences. (5') We change the setting of question 1 slightly to discuss the effect of moral hazard. x still affects the probability of getting sick. The probability of getting sick is 0.05 -0.03x and the expenditure is 200 if being sick. Moreover, health condition depends on effort. The relation between effort and r is 2 = to exp(e-0.5). xo is a random variable that follows uniform distribution U (0,1), and e is the effort level that can take three values: 0, 0.3, and 0.5. The private cost of effort is cle) = 10e. 2. Can you provide the range of co that will optimally pay effort 0, 0.3, and 0.5 respectively when they correctly calculate their probability of being sick? (10) 3. We consider a health insurance policy that covers the loss in full, and the premium is 6.5. For the following questions, assume everyone has to = 0.8. (20) (a) If buyers are risk neutral, will they purchase the policy? Given the optimal decision of whether or not to purchase the policy, what is the resulting probability of getting sick, and what is the expected medical expenditure (before the insurer reimburses, if any)? (10) (b) Is the insurer's profit positive, negative, or zero? Does there exist a premium level that satisfies the following two conditions: (i) the buyers are willing to purchase the insurance; (ii) the insurer earns a nonnegative profit? Explain. (5') (C) Suppose your are a consultant to the insurer. What contractual changes will you change to make the market exist such that the two conditions above hold? Justify your plan in less than 2 sentences. (5')

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