In the game in the table below, each player (A and B) has three possible actions. These
Question:
- In the game in the table below, each player (A and B) has three possible actions. These actions are labelled X, Y and Z.
Player B | ||||
X | Y | Z | ||
Player A | X | 100,100 | 900,0 | 200,300 |
Y | 500,900 | 700,300 | 100,700 | |
Z | 700,500 | 1100,1100 | 300,500 |
1a) Does player A have a dominant strategy? Does player B have a dominant strategy? Explain your answers, referring to a copy of the table.
1b) On the assumption that player A is rational, what should player B do? Why?
2). The companies in a duopoly face the payoff matrix shown below.
Company B | |||
X | Y | ||
Company A | X | 1, 1 | 3, 5 |
Y | 5, 3 | 0, 0 |
2a) Is a Nash equilibrium always a dominant strategy? Explain why or why not using the game above to illustrate your argument.
2b) Show that there are two Nash equilibria if this game is played as a simultaneous move game. Make any notations on a copy of the table that you need and explain them.
2c) Assume now that Company B in the previous game can move first. Present the game in extensive form and fully analyse the outcome.
Microeconomics An Intuitive Approach with Calculus
ISBN: 978-0538453257
1st edition
Authors: Thomas Nechyba