ECO204Y5 Chapter Notes - Chapter 13: Matching Pennies

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15 Mar 2019
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Strategic decisions; dominant strategies; nash equilibrium; and sequential games. Cooperative games: cooperative game: game in which participants can negotiate binding contracts that allow them to plan joint strategies. Ex: the bargaining between a buyer and a seller over the price of a good: noncooperative game: game in which negotiation and enforcement of binding contracts are not possible. Ex: two competing firms account for the reaction of the other firm when setting price, because it wants to avoid a price war. We will be concerned mostly with noncooperative games. A dominant strategy is one that is optimal no matter what an opponent does. When every player has a dominant strategy, we call the outcome of the game an equilibrium in dominant strategies. A nash equilibrium is a set of strategies (or actions) such that each player is doing the best it can given the actions of its opponents. There"s no incentive to deviate, making the nash strategy stable.

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