Game Theory Flashcards

1
Q

What key elements are there in game theory

A

Players, strategies and payoffs

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2
Q

What are dominant strategies in game theory

A

Strategies that are the best regardless of other players actions

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3
Q

What are dominated strategies in game theory

A

Never the best actions

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4
Q

How can you make it easier to solve the nash equalibrium

A

By knowing the dominant and dominated strategies

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5
Q

What are simultaneous move games

A

When players must choose their actions without knowing the oppositions choice

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6
Q

What is a maximin strategy

A

A strategy to minimize losses

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7
Q

How do outcomes differ in a one shot simultaneous game and a repeated simultaneous game

A

In multi stage game backward induction can be used

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8
Q

Cooperation is a valid equilibrium in the prisoners dilemma when a final stage is known

A

No

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9
Q

Cooperation in tue prisoners dilemma can be an equilibrium when the final stage is known or the game is infinite

A

Yes

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10
Q

Can backward induction be used in sequential games

A

Yes, when players take turnes

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11
Q

How are side payments strategically advantageous

A

Bribing your opponents or punishing yourself for hurting them can change the calculus of what is the most lucrative outcome for them or there perception of what is the most lucrative option for you

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12
Q

How can commitment be strategically advantageous

A

By making its threats more credible by for example making it costly to backtrack a firm can convince other players that they are better off taking the constellation price if a fight would make both worse off

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13
Q

What are the strategic benefits of entry deterence

A

If for example a monopoly creates excess capacity beforehand so that it could take any market entrant in a price war and make more profit than if it would simply let them enter and take the losses of preparation it adds credibility to the threat and the equilibrium is that they remain alone with all capacity to sell for whatever price

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14
Q

What is the strategic benefits of a reputation

A

It can work wonders as a deterrent

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15
Q

Why may players peruse a mixed strategy

A

If opponents are erratic or irational

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16
Q

When are matrixes better than trees when calculating the best course of action

A

When all actors act simultaneously

17
Q

What is the difference between grim trigger and tit for tat strategies

A

A grim trigger commits to cooperate until betrayed and then never again while tit for tats always respond in kind and thus are more forgiving