Files
zmVault/stag-hunt.md
T

1.1 KiB

title, tags, up
title tags up
Stag Hunt
topic/math
game-theory

Stag Hunt

In game-theory, the stag hunt is a stereotypical game which describes two actors, each with the same two options, which they must commit to without knowledge of the other's decision hunt stag or hunt hare. If a hunter chooses to hunt hare, they will catch it. A stag, however, can only be taken by the hunters in cooperation, so if only one hunter chooses to hunt stag, that one will catch nothing and go hungry.

Hunter A \ Hunter B Hunter B: Hunt Stag Hunter B: Hunt Hare
Hunter A: Hunt Stag Eat stag \ Eat stag Go hungry \ Eat hare
Hunter A: Hunt Hare Eat hare \ Go hungry Eat hare \ Eat hare

Whether hunting stag or hare becomes the dominant strategy depends on the relative payoff of each and each actor's trust in the other to cooperate.

The value in understanding this game is understanding that "selfishness" is largely not a inherent quality of individuals, but a response to incentives.