A risk averse individual faces uncertainty with two outcomes: good, bad. The individual has income $840 at good and $480 at bad outcome. The probability of good outcome is 7/12 (so the probability of bad outcome is 1 7/12 = 5/12). The individual can buy any non- negative x units of insurance. Every unit of insurance has price $p and it pays $1 in the event of bad outcome. In this insurance market, the unit price of insurance is known to be p = 2/3.

(a) [2 points] Determine if the insurance market is competitive or not.

(b) [8 points] Suppose the individual buys x units of insurance. Determine the individual's net income under good income, net income under bad income and the average net income. Draw these three in a diagram as functions of x.

(c) [6 points] For the individual: (i) compare full insurance with over insurance and (ii) compare full insurance with partial insurance. Then determine best choice of insurance for the individual. (d) [6 points] Consider the same problem, but suppose the individual is risk neutral instead of risk averse. Determine best choice of insurance for the individual.