Up Down Player 1 Up Down Up Down Player 2 In the game above, what is/are the sub-game perfect Nash equilibrium? (up,up) (up,down) (down, up) (down, down) No equilibrium exists P1 gets $100 P2 gets $100 P1 gets $10 P2 gets $110 P1 gets $15 P2 gets $15 P1 gets $65 P2 gets $10
Up Down Player 1 Up Down Up Down Player 2 In the game above, what is/are the sub-game perfect Nash equilibrium? (up,up) (up,down) (down, up) (down, down) No equilibrium exists P1 gets $100 P2 gets $100 P1 gets $10 P2 gets $110 P1 gets $15 P2 gets $15 P1 gets $65 P2 gets $10
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Transcribed Image Text:### Game Theory Decision Tree and Nash Equilibrium
The diagram displayed is a decision tree representing a two-player game. Each player has two choices: "Up" or "Down".
**Player 1's Options:**
- **Up:**
- Both Player 1 and Player 2 receive $100 each.
- **Down:**
- Player 2 now has their own choice:
- **Up:**
- Player 1 receives $10, Player 2 receives $110.
- **Down:**
- Player 1 receives $65, Player 2 receives $10.
**Question:**
Given the game above, what is/are the sub-game perfect Nash equilibrium?
**Answer Choices:**
- (up, up)
- (up, down)
- (down, up)
- (down, down)
- No equilibrium exists
This setup illustrates the concept of sub-game perfect Nash equilibrium where the players make optimal decisions at every point in the game.
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