Suppose you have $100 of endowment, and you are offered a chance to buy a lottery which costs $36. The lottery has 43% of chance to win a prize of $G, or you just lose and get nothing. Suppose your utility function on wealth is u(w)=w^1/2. What is the least prize size G that you will be willing to buy the lottery? (Round to the second digit after decimal point.)

Respuesta :

Answer:

96.02

Explanation:

Lottery's Expected utility = [tex]\sqrt{100}[/tex] = 10

Income in good state = 100 - 36 + G = 64 + G

Income in bad state = 100 - 36 = 64

Probability in good state = 43%

Probability in bad state = 100% - 43% = 57%

Expected utility = Probability in good state x [tex]\sqrt{(64 + G )}[/tex] + Probability in bad state x [tex]\sqrt{64\\}[/tex]

10 = 43% x [tex]\sqrt{(64 + G )}[/tex] + 57% x 8

10 = 43% x [tex]\sqrt{(64 + G )}[/tex] + 4.56

10 - 4.56 = 43% x [tex]\sqrt{(64 + G )}[/tex]

5.44 = = 43% x [tex]\sqrt{(64 + G )}[/tex]

5.44 / 43% = [tex]\sqrt{(64 + G )}[/tex]

12.65 = [tex]\sqrt{(64 + G )}[/tex]

[tex]12.65^{2}[/tex] = [tex](\sqrt{(64 + G )})^{2}[/tex]

160.0225 = 64 + G

G = 160.0225 - 64

G = 96.0225

G = 96.02