31 lines
1.1 KiB
Markdown
31 lines
1.1 KiB
Markdown
---
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title: Stag Hunt
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tags:
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- topic/math
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up: "[[game-theory]]"
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---
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# Stag Hunt
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In [[game-theory]], the **stag hunt** is a stereotypical game
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which describes two actors, each with the same two options,
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which they must commit to without knowledge of the other's decision
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hunt stag or hunt hare.
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If a hunter chooses to hunt hare, they will catch it.
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A stag, however, can only be taken by the hunters in cooperation,
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so if only one hunter chooses to hunt stag,
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that one will catch nothing and go hungry.
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| Hunter A \ Hunter B | Hunter B: Hunt Stag | Hunter B: Hunt Hare |
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|:----------------------- |:--------------------:|:--------------------:|
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| **Hunter A: Hunt Stag** | Eat stag \ Eat stag | Go hungry \ Eat hare |
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| **Hunter A: Hunt Hare** | Eat hare \ Go hungry | Eat hare \ Eat hare |
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Whether hunting stag or hare becomes the dominant strategy
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depends on the relative payoff of each
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and each actor's trust in the other to cooperate.
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The value in understanding this game
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is understanding that "selfishness"
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is largely not a inherent quality of individuals,
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but a response to [[incentives]].
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