Prisoners' Dilemma and Nash Equilibrium

[ULMORAIS]

Hey Sal, why this next videos aren't in the KhanAcademy-org playlist so that we can watch there and earn points and stuff?

[Goofmobber]

@triplefcst Not much can be done with the current justice system's flaws. At least 30% of California's prisoners are innocent, it's just the way it is.

[jrwkc]

@Goofmobber 30%? are you some sort of moron?

[triplefcst]

What if either one of them actually didn't attend the robbery and the one who did it confesses? Then the innocent guy might get 10 years while the other guy get only one year...

[PhobiaPhobo]

@triplefcst this has nothing to do with morals.. the whole prisoners dilemma is a visual representation of the pareto effect and how "rational" decisions can lead to themost "irrational" result

[dms807907]

He got it wrong... if you confess you don't get one year in prison you get one year to live

[torchinaces]

what program does he draw on? or use?

[viewer14able]

My entire weekend if not busy or studying, goes to watching videos like these. Instructional and makes for some great conversations with professors.

[Tr3xKuro]

lol

[irmb5teS]

omg this reminds me of a beautiful mind ;)

[PaloAltoMetal]

@irmb5teS Yep! Nash made this theory.

[plamenxyzpenchev]

Since you started sth like a brain teaser. PLEASE some interesting brain teaser! :p

[meanmanturbo]

Cool, game theory

[cdltpx]

In short our system sucks after they are done with the DA it don't matter what they cop to since they probably will enter a privatized prison system where they purposefully house violent lifers with non-violent drug offenders in order for the NVDO to get more time. Private prison makes MORE money the MORE prisoners they get. Traditional prison system saves money housing less inmates since they are worth more to the system working a real job providing a tax base requiring less attention.

[xxDooMKaiseRDragoNxx]

Darn that spelling mistake. "Equibrium."

[TosinDFreshPrince]

i learnt this first in a manga, liar game, wanted to know more about it

[TheCryptonites]

@TosinDFreshPrince Me too

[jonathonbryan]

love this dilemma, and beautifully explained.

but if i was the guy trying to get them to confess i wouldn't give this test, since what if they didn't do the crime? by this logic, maybe they'd still both confess!

so if they actually did commit the crime, and they both confess to it, i still wouldn't know if they had done it or not!

[xIsrael92x]

@jonathonbryan either way your throwing drug dealers in jail (;

[jonathonbryan]

@xIsrael92x haha, true

[ReganHuang]

when sal said snitch, i felt smarter.

[pseudonominous]

@khanacademy

your videos are excellent - all of them!!

Tx for your efforts. they are greatly appreciated!

[paul1964uk]

This is off topic but I wonder if queuing (standing in line), where the serving time is proportional to (say) numbers of checkout items, could be treated by economic analysis in some way. While "first come first served" is fair (and upholds trust etc) there is the collective waiting time of for the people behind first place. People can switch in pairs, you see. So how could the line move to towards an 'optimal' arrangement under this type of approach?

[FrankiePoker]

@paul1964uk Absolutely. Very good thinking. That is why you often see 10 items or less checkouts.

[DondeEstaVee]

Use the tit for tat strategy! - for iterated prisoners dilemma

(Start with "snitch")

[chocomalk]

This sort of tactic should be illegal, never take a plea bargain.

[rfrantzt]

Stop snitching!

[toteckaheedren]

Don't do it Al!

[TrollingAintEasy]

penis

[ObscurityN]

@TrollingAintEasy copier!

[ObscurityN]

penis