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Game Theory 101: The Prisoner's Dilemma

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Uploaded by on May 7, 2010

http://gametheory101.com/Textbook.html

William Spaniel shows how to find the equilibrium solution to a prisoner's dilemma using the strict dominance solution concept.

  • likes, 8 dislikes

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Uploader Comments (JimBobJenkins)

  • Okay, so the top right box represents blue player one cooperating, meaning confessing, yet receiving 10 years?! That wasn't one of the scenarios in the intro.

  • @Joefest99 Cooperating means keeping quiet; defecting means ratting out the other.

  • At around 1:00 you say the rows always reflect player one's moves and the columns always reflect player two's moves. Do you mean the other way around??

  • @gowiemeister Nope--that sounds right.

Top Comments

  • @CambridgeHeights The results of game theory are not actually the nail in the coffin for morality. In fact the opposite is true, demonstrated by the results of iterated games. In "iterated" games, players must strategically interact with one another more than just once(as in this classic prisoner's dilemma). The most successful strategy in iterated games is Tit-for-Tat. Giving like for like. Cooperating by default and then if ever betrayed by an other betraying that other on the next interaction

  • @GodlessInfinity Game theory is not constrained by 2x2 matrices. It goes far beyond this.

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All Comments (86)

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  • Snitches get stitches and dont get bitches

    No but great video

  • Individually smart, collectively dumb

  • Thank you!

  • Thanks for this video, it's really helped me :)

  • The only way I know about this is from golden balls

  • What if they were innocent and lost their key to the store?

  • @GodlessInfinity "Game theory seems too narrow it's approach to understanding human beings and human social and economic interactions."

    it seems here we are talking of 2 criminals who are not new to the life (robbery is rarely a first time crime) they know going to jail for 10 years and not being a rat is better then going to jail for five and people learning you are one. I'm assuming my buddy isn't talking, so I will not talk. if we both assume this we "win". he rats, in 10 I'll come c him

  • Very nice video .. thank you

  • @sappytortoise I believe the statement was "Rational players by rule never play the strictly dominated strategy". The last 'd' in "dominated" wasn't pronounced to distinctly.

  • Could someone explain this please?

    "Rational players by rule never play the strictly dominate strategy"

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