12 Suppose that Pengsoo has a utility function
U(W)=√W, where W is his income in millions of dollars. If he runs
his own business, he can earn 4 million dollars a year when the
weather is good with probability of 1/3 and 1 million dollars a
year when the weather is bad with probability of 2/3. If he chooses
a fixed income job, he can earn 1.8 million dollars a year for
sure. (6 points)
(12-1) Compare Pengsoo’s expected incomes in the above two
cases.
(12-2) Compare Pengsoo’s expected utilities in the above two
cases.
(12-3) Explain which Pengsoo would choose in the above
situation.
1) pengoos's Expected income ( EI ) when he does his own business would be = 1/3 (4) + 2/3 (1)
EI1 = 4/3 + 2/3 = 6/3 = 2 millions
pengoos' Income when he chooses fixed income EI2 = 1.8 millions ( given )
2 ) As given in the question pengsoo utility func is
U(W)= W
So, Expected utility (EU) he drives when he runs his own business = 1/3 (4) + 2/3 ( 1)
EU1 = 1/3(2) + 2/3 (1) = 1.33 millions
When pengoos's chooses fixed income of 1.8 million his utility will be
EU2 = 1.8 = 1.34 millions
C ) If pengoo's is concerned with only income , he will choose to do business with expected probabilities and if he is concerned with utility then he will be indifferent between the two outcomes.
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