Assume Person A is offered the following game: If they want to participate in the game, they will need to pay £5. If they participate, they can choose between Option A and Option B. Option A consists of spinning a roulette wheel with 37 different numbers (18 red, 18 black, and 1 green). If the outcome is red, the participant receives £10 and £0 otherwise. Option B is a fair coin flip that yields £5 when heads comes up and £10 when tails comes up. (a) What is the expected value of Option A? (ii) What is the expected value of Option B? (iii) What is the expected value of participating in the game and choosing Option A?
Assume Person A is offered the following game: If they want to participate in the game, they
will need to pay £5. If they participate, they can choose between Option A and Option B.
Option A consists of spinning a roulette wheel with 37 different numbers (18 red, 18 black,
and 1 green). If the outcome is red, the participant receives £10 and £0 otherwise. Option B is
a fair coin flip that yields £5 when heads comes up and £10 when tails comes up.
(a) What is the expected value of Option A?
(ii) What is the expected value of Option B?
(iii) What is the expected value of participating in the game and choosing
Option A?
(iv) What is the expected value of participating in the game and choosing
Option B?
(v) How much would the game need to cost to make it a fair game when you
choose Option A?
(vi) How much would the game need to cost to make it a fair game when you
choose Option B?
(b) Person A chooses to participate in the above described game. Which of the
following options can be true regarding their risk preference and the shape of the utility
function?
• risk averse, concave
• risk averse, convex
• risk neutral, flat
• risk neutral, linear
• risk loving, concave
• risk loving, convex
(c) Person B is offered the same game, but for a price of £6. They do not not want
to participate in the game. Which of the following options can be true regarding their
risk preference and the shape of the utility function?
• risk averse, concave
• risk averse, convex
• risk neutral, flat
• risk neutral, linear
• risk loving, concave
• risk loving, convex
(d) Person C is offered the same game, for a price of £5. They decide to participate
and choose Option A. Which of the following options can be true regarding their risk
preference and the shape of the utility function?
• risk averse, concave
• risk averse, convex
• risk neutral, flat
• risk neutral, linear
• risk loving, concave
• risk loving, convex
(e) Person D is offered the same game, for a price of £5. They decide to participate
and choose Option B. Which of the following options can be true regarding their risk
preference and the shape of the utility function?
• risk averse, concave
• risk averse, convex
• risk neutral, flat
• risk neutral, linear
• risk loving, concave
• risk loving, convex
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