Question 1 In this game, Ann has 2 [Select] Question 2 pure strategies. In the game of two romantics, when p = 0.5, there are Please enter an integer in the box below. Question 3 pure strategies and Bob has ———— pure-strategy Bayesian Nash equilibria. In the game of two romantics, when p = 0.8, let A = Ann's highest expected payoff in any pure-strategy Bayesian Nash equilibrium; let B-Ann's lowest expected payoff in any pure-strategy Bayesian Nash equilibrium. A and B are expected payoffs under the common prior belief. They should be the entries in a game matrix that you created using methods we learned in L8. What is A-B? Enter your answer in the box below. Round your answer to 1 decimal place if needed.

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Chapter1: Making Economics Decisions
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Section 1: Two Romantics
Ann and Bob had their first date. Each either felt romantic chemistry (C) or no chemistry (NC) with the other
person. Each person knows his/her own feeling but does not know the feeling of the other person. Assume a
common prior belief that the other person felt chemistry with probability Pr(C) = p and no chemistry with
probability Pr(NC) = 1-p.
Ann and Bob are old-fashioned romantics and they made the following rule after the first date: No
texts/calls/DMs. Instead, they can choose whether to appear (A) or not appear (NA) under the USyd
Quadrangle clock tower at sunset on the next day. Their payoffs are given as follows:
(From a first-person perspective)
If I felt chemistry (C) and I appear (A) under the clock tower, my payoff is 100 if the other person also appears
(A) and -100 if the other person doesn't (NA).
If I felt chemistry (C) and I choose not to appear (NA) under the clock tower, my payoff is -30 regardless of the
other person's action (because I won't know anyway).
If I felt no chemistry (NC) and I appear (A) under the clock tower, my payoff is 20 if the other person appears
(A) and -20 if the other person doesn't (NA).
If I felt no chemistry (NC) and I choose not to appear (NA) under the clock tower, my payoff is 10 regardless
of the other person's action.
Please use this information to answer the following questions.
(Hint: Can you find a similar question from a lecture or tutorial or practice quiz?)
Transcribed Image Text:Section 1: Two Romantics Ann and Bob had their first date. Each either felt romantic chemistry (C) or no chemistry (NC) with the other person. Each person knows his/her own feeling but does not know the feeling of the other person. Assume a common prior belief that the other person felt chemistry with probability Pr(C) = p and no chemistry with probability Pr(NC) = 1-p. Ann and Bob are old-fashioned romantics and they made the following rule after the first date: No texts/calls/DMs. Instead, they can choose whether to appear (A) or not appear (NA) under the USyd Quadrangle clock tower at sunset on the next day. Their payoffs are given as follows: (From a first-person perspective) If I felt chemistry (C) and I appear (A) under the clock tower, my payoff is 100 if the other person also appears (A) and -100 if the other person doesn't (NA). If I felt chemistry (C) and I choose not to appear (NA) under the clock tower, my payoff is -30 regardless of the other person's action (because I won't know anyway). If I felt no chemistry (NC) and I appear (A) under the clock tower, my payoff is 20 if the other person appears (A) and -20 if the other person doesn't (NA). If I felt no chemistry (NC) and I choose not to appear (NA) under the clock tower, my payoff is 10 regardless of the other person's action. Please use this information to answer the following questions. (Hint: Can you find a similar question from a lecture or tutorial or practice quiz?)
Question 1
In this game, Ann has
[Select]
Question 2
2
Question 3
A
pure strategies.
pure strategies and Bob has
In the game of two romantics, when p = 0.5, there are pure-strategy Bayesian Nash equilibria.
Please enter an integer in the box below.
====
In the game of two romantics, when p = 0.8,
let A = Ann's highest expected payoff in any purc-strategy Bayesian Nash equilibrium;
let B = Ann's lowest expected payoff in any pure-strategy Bayesian Nash equilibrium.
A and B are expected payoffs under the common prior belief. They should be the entries in a game matrix
that you created using methods we learned in L8.
What is A-B? Enter your answer in the box below. Round your answer to 1 decimal place if needed.
Transcribed Image Text:Question 1 In this game, Ann has [Select] Question 2 2 Question 3 A pure strategies. pure strategies and Bob has In the game of two romantics, when p = 0.5, there are pure-strategy Bayesian Nash equilibria. Please enter an integer in the box below. ==== In the game of two romantics, when p = 0.8, let A = Ann's highest expected payoff in any purc-strategy Bayesian Nash equilibrium; let B = Ann's lowest expected payoff in any pure-strategy Bayesian Nash equilibrium. A and B are expected payoffs under the common prior belief. They should be the entries in a game matrix that you created using methods we learned in L8. What is A-B? Enter your answer in the box below. Round your answer to 1 decimal place if needed.
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