1. Two investors have each deposited 4 (all amounts are in $10,000s) with a bank. The bank has invested these deposits in a long-term project. If both investors make withdrawals at date 1 then each receives 2 and the game ends. If only one investor makes a withdrawal at date 1 then that investor receives 4, the other receives 0, and the game ends. Finally, if neither investor makes a withdrawal at date 1 then the project matures and the investors make withdrawal decisions at date 2. If both investors make withdrawals at date 2 then each receives 8 and the game ends. If only one investor makes a withdrawal at date 2 then that investor receives 10, the other receives 6, and the game ends. Finally, if neither investor makes a withdrawal at date 2 then the bank returns 8 to each investor and the game ends. Find the subgame-perfect outcomes.

1. Two investors have each deposited 4 (all amounts are in $10,000s) with a bank. The bank has invested these deposits in a long-term project. If both investors make withdrawals at date 1 then each receives 2 and the game ends. If only one investor makes a withdrawal at date 1 then that investor receives 4, the other receives 0, and the game ends. Finally, if neither investor makes a withdrawal at date 1 then the project matures and the investors make withdrawal decisions at date 2. If both investors make withdrawals at date 2 then each receives 8 and the game ends. If only one investor makes a withdrawal at date 2 then that investor receives 10, the other receives 6, and the game ends. Finally, if neither investor makes a withdrawal at date 2 then the bank returns 8 to each investor and the game ends. Find the subgame-perfect outcomes.

Microeconomics A Contemporary Intro

10th Edition

ISBN:9781285635101

Author:MCEACHERN

Publisher:MCEACHERN

Chapter10: Monopolistic Competition And Oligopoly

Section: Chapter Questions

Problem 13PAE

See similar textbooks

Similar questions

2.2.B Bank Runs Two investors have each deposited D with a bank. The bank has invested these deposits in a long-term project. If the bank is forced to liquidate its investment before the project matures, a total of 2r can be recovered, where D > r > D/2. If the bank allows the investment to reach maturity, however, the project will pay out a total of 2R, where R > D. There are two dates at which the investors can make with- drawals from the bank: date 1 is before the bank's investment matures; date 2 is after. For simplicity, assume that there is no discounting. If both investors make withdrawals at date 1 then each receives r and the game ends. If only one investor makes a withdrawal at date 1 then that investor receives D, the other receives 2r - D, and the game ends. Finally, if neither investor makes a withdrawal at date 1 then the project matures and the investors make withdrawal decisions at date 2. If both investors make withdrawals at date 2 then each receives R and the game…
4. Find the Nash equilibrium of the following modified Rock-Paper-Scissors game: • When rock (R) beats scissors (S), the winner's payoff is 10 and the loser's payoff is –10. • When paper (P) beats rock, the winner's payoff is 5 and the loser's payoff is -5. • When scissors beats paper, the winner's payoff is 2 and the loser's payoff is -2. • In case of ties, both players receive 0 payoff.
4. Duopoly game Consider a duopoly, where each firm may choose among three strategies: zero, small, or large levels of output. The normal-form payoff matrix, which shows profits, is as follows: Output of firm A Zero Small Large Zero 0, 0 1500, 0 2000, 0 Output of firm B Small 0, 1500 1300, 1300 1400, 800 Large 0, 2000 800, 1400 500, 500 1) The protocol for this game is sequential: firm A moves first, then firm B, and the game ends. a) Find the "subgame-perfect equilibrium” (i.e. the outcome, assuming that the players choose rationally when it is their turn). Is there a first-mover or last-mover advantage? b) c) Is the solution efficient for the two firms together (i.e. is combined profit maximized)? 2) Now change the game: firm A moves first, then firm B moves, then A can revise its own decision, and the game ends (so A has both the first move and the last move). a) Find the subgame-perfect equilibrium. b) Is the solution efficient for the two firms? c) Does firm A benefit more than in…
Problem 3 - The Perfect Subgame Find the set of pure strategy Nash equilibria and subgame perfect equilibria of the following game: Out In 0, 20 F A F A F A -5, -5 -1,8 8,5 10, 10
i. ii. QUESTION ONE A. A Nash equilibrium is a strategy profile such that every player's strategy is the best response to all the other players. It requires that each player makes a best response and that expectations regarding the play of other players are correct. Below is the table showing strategies and payoff for Player 1 and Player 2. PLAYER 1 R1 R2 R3 R4 C1 0,7 5,2 7,0 6,6 C2 2,5 3,3 2,5 2,2 PLAYER 2 C3 7,0 5,2 0,7 4,4 CA 6,6 2,2 4,4 10,4 REQUIRED; Transform the normal form game above into an imperfect extensive game form Find the Nash equilibrium for the game above using iterative deletion of strictly dominated strategies. Find the Nash equilibrium using brute force or cell by cell inspection.
5. Consider the following Extended Form game where P1 stands for Player one and P2 stands for player two with A, B and A', B' being their respective strategies. A' (1,1) P2 B' (2,3) P1 A' B (4,5) P2 What is the set of Nash Equilibria? Clearly explain your answer. Full-screen Snip B' (6,7)
1. Solve for the mixed strategy Nash equilibrium of the game above. Explain carefully how you solve for it. 2. In the equilibrium you calculated above, what is the probability that both consoles are released in October? In December? What are the expected payoffs of firm A and of firm B in equilibrium?
9. Little Kona is a small coffee company that is consider- ing entering a market dominated by Big Brew. Each company's profit depends on whether Little Kona enters and whether Big Brew sets a high price or a low price: Little Kona Enter Don't Enter High Price Kona makes $2 million Kona makes zero Big Brew Brew makes $3 million Brew makes $7 million Kona loses $1 million Low Price Kona makes zero Brew makes $1 million Brew makes $2 million
3. Write a normal form representation of the game shown in the figure below and derive all pure strategy Nash equilibria. P1 L R P2 P2 L R R l's Payoff 1 2's Payoff 2
8. Solving for dominant strategies and the Nash equilibrium Suppose Tim and Alyssa are playing a game in which both must simultaneously choose the action Left or Right. The payoff matrix that follows shows the payoff each person will earn as a function of both of their choices. For example, the lower-right cell shows that if Tim chooses Right and Alyssa chooses Right, Tim will receive a payoff of 3 and Alyssa will receive a payoff of 6. Tim Left Left 5, 6 Right 4, 2 Alyssa Right 5,5 3,6 The only dominant strategy in this game is for to choose The outcome reflecting the unique Nash equilibrium in this game is as follows: Tim chooses and Alyssa chooses
1. In the following extensive-form game, derive the normal-form game, and find all the pure-strategy Nash equilibria, subgame-perfect equilibria, and perfect Bayesian equilibria. L' M' R' 1 R L M 2 P M' R' 1,3 1,2 4,0 4,0 0,2 3,3 2,4
7. Solving for dominant strategies and the Nash equilibrium Suppose Rajiv and Simone are playing a game in which both must simultaneously choose the action Left or Right. The payoff matrix that follows shows the payoff each person will earn as a function of both of their choices. For example, the lower-right cell shows that if Rajiv chooses Right and Simone chooses Right, Rajiv will receive a payoff of 5 and Simone will receive a payoff of 5.