Assume two nuclear armed countries (say the US and the Soviet Union (USSR)) are locked in a geopolitical competition of high stakes that can be described using a Prisoners Dilemma Game. In particular assume that if both countries choose peace, payoffs are +10. If both choose war pay-offs are -30. If one choose peace and the other war (ie a surprise attack), then the peaceful nation has a pay-off of -50 and the attacker a pay-off of +20. A. Solve for the Nash Equilibrium of this game.
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- Assume two countries (US and Germany) are facing the decision of whether to participate in the Paris Agreement or not. The following payoff matrix contains the estimated payoffs for both countries for all possible strategies. Germany US Join Not join Join A: (500, 360) B: (100, 200) Not join C: (450, 300) D: (450, 350) What is the Nash equilibrium of this game if it has to be played sequentially and US moves first? US joins, Germany joins US joins, Germany does not join US does not join, Germany joins US does not join, Germany does not joinSuppose there are two farmers, each of whom has the right to graze cows on the village common. Denote by sA and sB the number of cows farmers A and B graze, respectively. The payoff per cow is given by 120-sA-sB and farmers decide on the number of cows they will graze on the common simultaneously (a) Formulate this situation as a strategic game and find the Nash equilibrium (b) Compare the equilibrium farmer profits to those that would have been realized if each farmer grazed 30 cows on the village common. ExplainTwo firms are competing to establish one of two new wireless communication standards, A or B. A strategy is a choice of standard, and an outcome of this game is a choice of standard by each firm – for example, (A, B) represents the case where Firm 1 decides to develop standard A and Firm 2 develops standard B. Here, the first letter will always correspond to Firm 1’s decision, and the second letter to Firm 2’s decision. Firm 1 has the following preferences over outcomes, in order of highest to lowest preferred: it prefers (A, A) to (B, A) to (A, B) to (B, B). Firm 2 prefers (A, B) to (A, A) to (B, A) to (B, B). Suppose that firms simultaneously decide which standard to develop. What is the pure strategy Nash equilibrium?
- Let’s say there are two friends, Adam and Jason who each has two strategies: Share and don’t share notes to classmates a night before final exam. The payoff for each of them is in the above payoff matrix. a) Do you think this game has a dominated strategy equilibrium? Is it a stable equilibrium? Justify your answer. b) Is it worth for both of them to end up sharing notes to others a night before final exam? Justify your answer.Two firms are competing to establish one of two new wireless communication standards, A or B. A strategy is a choice of standard, and an outcome of this game is a choice of standard by each firm – for example, (A, B) represents the case where Firm 1 decides to develop standard A and Firm 2 develops standard B. Here, the first letter will always correspond to Firm 1’s decision, and the second letter to Firm 2’s decision. Firm 1 has the following preferences over outcomes, in order of highest to lowest preferred: it prefers (A, A) to (B, A) to (A, B) to (B, B). Firm 2 prefers (A, B) to (A, A) to (B, A) to (B, B). Suppose that firms simultaneously decide which standard to develop. What is the pure strategy Nash equilibrium? Is the answer (B,B)? If not please explian what is the answer?Consider a modification of driving conventions, shown in the figure below, in which each player has a third strategy: to zigzag on the road. Suppose that if a player chooses zigzag, the chances of an accident are the same whether the other player drives on the left, drives on the right, or zigzags as well. Let that payoff be 0, so that it lies between –1, the payoff when a collision occurs for sure, and 1, the payoff when a collision does not occur. Find all Nash equilibria.
- Hello, please help me to solve this Game Theory question. Thanks in advance! Hobby hunter Jack decides what to do the next weekend. He can either stay at home and watch movies (Movies), or call his friend Katherine to go hunting (Hunt). If he stays in, both Jack and Katherine get a payoff of 2. If he decides to hunt, he knows the situation with his friend will resemble a classic stag hunt game with simultaneous moves: Hunting a stag is better than hunting a rabbit, but it only works if they cooperate. The hunting subgame is captured as: Katherine Stag Rabbit Jack Stag 3 , 3 0 , 1 Rabbit 1 , 0 1 , 1 Are the Nash Equilibria of the full game credible?Comment on any Nash equilibria of the full game which are not credible.Find all subgame perfect equilibria in pure strategies.suppose that the world is comprised of two countries: X and Y. Because of the absence of centralized world governance, the control of global externalities is particularly challenging, which is the case with greenhouse gases linked to climate change. The entries in the following Payoff Table describe each country's well-being under different abatement patterns: X\Y No Abate Abate No Abate 12,12 24,8 Abate 8,24 20,20 Now suppose that the game is repeated indefinitely. Define the concepts of Trigger Strategies and also the concept of Business as Usual Strategies for the repeated game. Verify that trigger strategies supporting cooperative payoffs (20,20) constitute a non-cooperative equilibrium of the repeated game when δ=0.8. Are trigger strategies still an equilibrium when δ=0.30? Explain intuitively why and verify that Business as Usual still is an equilibrium in this case.Hello, please help me to solve this Game Theory question. Thanks in advance! Hobby hunter Jack decides what to do the next weekend. He can either stay at home and watch movies (Movies), or call his friend Katherine to go hunting (Hunt). If he stays in, both Jack and Katherine get a payoff of 2. If he decides to hunt, he knows the situation with his friend will resemble a classic stag hunt game with simultaneous moves: Hunting a stag is better than hunting a rabbit, but it only works if they cooperate. The hunting subgame is captured as: Katherine Stag Rabbit Jack Stag 3 , 3 0 , 1 Rabbit 1 , 0 1 , 1 Draw the entire game as an extensive form (game tree), capturing both Jack’s initial decision (M or H) and the subsequent hunting game. Make sure to correctly label all players, actions, and information sets.
- Consider a one-time game involving a penalty kick in football/soccer. There are two players: kicker and goalkeeper. The kicker has two possible actions: kick left or right. The goalkeeper also has two possible actions: guess left or right. The kicker and goalkeeper move simultaneously. If the kicker and goalkeeper choose the same direction, the goalkeeper "wins" and the payoffs are (0,1). If the kicker and goalkeeper choose different directions, the kicker wins and the payoffs are (1,0). (a) Is there a pure strategy equilibrium in this game? Explain. (b) Derive and explain the mixed strategy equilibrium for this game.We consider the following three-player strategic form game, where Alice's strategies are U, C, and D, and Bob's strategies are L, M, and R, and Carol's strategies are A and B. Carol's strategy consists of choosing which table will be used for the payoffs, Table A or Table B.Table A is below, where for each cell the first number is Alice's payoff, the second number is Bob's payoff and the third number is Carol's payoff.. L M R U 8,11,14 3,13,9 0,5,8 C 9,9,8 8,7,7 6,5,7 D 0,8,12 4,9,2 0,4,8 Table A Table B is below, where again, for each cell, the first number is Alice's payoff, the second number is Bob's payoff and the third number is Carol's payoff.. L M R U 14,1,0 13,2,11 1,3,2 C 0,0,2 7,2,3 14,3,2 D 7,12,11 12,12,0 2,11,2 Table B This game may not have any Nash equilibrium in pure strategies, or it may have one or more equilibria.How many Nash equilibria does this game have?Three married couples in the state of Maryland—Bob and Carol, Ted and Alice, and Ross and Mike (remember, same-sex marriage is legal in the state of Maryland)—are thinking about renting a boat to go sailing on the Chesapeake Bay. The cost of a boat rental is $600. Each of the three couples puts some amount of money in an envelope. Thus, each player in this game is a couple. If the total amount collected is at least $600, then the boat is rented. If the amount collected is more than $600, then the money left over after renting the boat is spent on wine. If the total amount collected is less than $600, then they do not rent the boat, and the money is spent on a dinner. Assume the benefit to a couple from the boat trip is 400, the benefit from each dollar spent on wine is 50 cents, the benefit from each dollar spent on dinner is 40 cents, and the personal cost of the contribution to a couple equals the amount of contribution. For example, if the boat is rented, $50 of wine is purchased…