The theory at the time was that businesses work best when we all compete against each other because competition brings about the best economic results. This is what capitalism is about - the market forces determining the outcomes through competition. But Nash realises that there are situations where we need to work collectively in order for everyone to win.
just to repeat what's been commented on other uploads of this scene. apart from the sexism in it, this is clearly a wrong representation of what a nash equ. is! what nash puts up here is not even a pareto efficient situation. a nash equ. is when no one would be better off changing his own strategy while the others keep theirs, but if just one player goes to the blond he will clearly be better off! so there are 4 nash equ. here: br, br, br, bl; br, br, bl, br; br, bl, br, br; bl, br, br, br!
correct me if im wrong. so this is pretty much using the knowledge that humans are inirrational to create an equal equilibrium for each person whilst maximising utility equally between them.
Bogus, they got the implication of Doctor Adam Smith’s economic theory wrong in this clip.
….not to mention that it’s a shorty of the 5 ladies, the long thick curly hair brunette in the navy & maroon skirt that is #1 sexy!
The object here is to go along and //say// that the blonde is #1 and allow the peer pressure to leave the one that is the best mate wide open! Then play it up that you lost, when you walk away with the best lady without a struggle.
KidVB is correct. Slipshod88 is very wrong. This is not a NE. The game, as presented, actually has 5 Nash equilibria in pure strategies, each one represented by the strategies described by kidVB but for each player, not only for Nash. There is no NE where noone goes for the blonde. E.g. [Martin gets the blonde, the other 4 get her friends] [Nash gets the blonde, the other 4 get her friends] etc are all NEs.
@george12345100 They got the implication of Doctor Adam Smith’s economic theory wrong in this clip.
….not to mention that it’s a shorty of the 5 ladies, the long thick curly hair brunette in the navy & maroon skirt that is #1 sexy!
The object here is to go along and //say// that the blonde is #1 and allow the peer pressure to leave the one that is the best mate wide open! Then play it up that you lost, when you walk away with the best lady without a struggle.
@george12345100 I thought Nash explained that if one of them goes for the blonde, the others will too, thus forfeiting their chances of getting any of the friends? So no matter what, they'll be worse off if someone goes for the blonde. But anyway, yeah, years after, I realize that this situation is more similar to a cartel, which is unstable, and thus not a true example of Nash Equilibrium.
Wrong, hollywood didnt "tell everyone to ignore the blonde," Nash just said that each member's BR (best response) given what they thought everyone else would do would be to ignore the blonde. Remember, NE doesn't necessarily maximize aggregate utility. (which would be for everyone to get the blonde to themselves, which in this case, is impossible.)
@taromakino Yes, their Best Response is to ignore the blonde, because Nash is already with her. If the 4 guys are dancing with the 4 girls, and the blonde girl is sitting there alone; the best response for each of the 4 guys is to deviate from the girl they're dancing with and go for the blond. Thus none of the guys are playing their best response under your example and we dont have the NE.
You totally dont understand what taro is saying. Nash's reason for not picking the blonde is because none of them will get any girls of they did. Its a prisoners dilemma. If they all deviate and pick the blonde, blonde will not pick any of the guys resulting in a Nash of 0 payoffs for each.
But instead of everyone deviating to pick the blonde, they all would get positive utility if they all cooperate and the other 4 resulting in each dude getting 1 girl.
Hollywood Nash told 'Everyone' to ignor blonde, so he could have her. If you watch, only Nash's 4 friends go for the other girls, Nash doesn't.......... meaning he intends to go for the blonde once his friends are paired with the 4 other girls, if this occurs, he will have maximised his utility given other players strategies, and none of the players will have a reason to deviate from their current strategy as it will reduce utility.
@kidVB Bogus, they got the implication of Doctor Adam Smith’s economic theory wrong in this vid-clip.
….not to mention that it’s a shorty of the 5 ladies, the long thick curly hair brunette in the navy & maroon skirt that is #1 sexy!
The object here is to go along and //say// that the blonde is #1 and allow the peer pressure to leave the one that is the best mate wide open! Then play it up that you lost, when you walk away with the best lady without a struggle.
@centurion180ad You've gained my respect, I haven't looked at it from a comparative point of view! But I still think the blonde is the cutest, and Hollywood thought about this, that's why she is the only blonde in the group of 5, she stands out from the rest of the group by being original in a relative way.
@kidVB nash is a impartial third person, he does not intend to get the blonde, if you watch it again, you will see the four guys came in to get the blonde while nash was doing his work with no intention of getting the blonde
@kidVB is human nature, all the individues want the big prize, but comparative examples teached us to share the lower prizes to our fellows , and thats the problem of today's economy
Not really the point, i like this video for its dramatic portayel of a sudden realisation of a profound concept. Your statement is not entirely correct tho, his example is a perfect explanation of Nash Equilibrium, his statement that everyone gains their maximum utility form doing whats best for themselves and the group it incorrect.
But yes Nash Equilibrium is reached when the strategy profile for each player, is the optimal response to the other players strategies.
So if the 4 friends go for the 4 girls AND Nash goes for the fitter blond girl, this represents a Nash Equilibrium, noone can improve ther payoff given the other players strategies.
If martin decided to go for blonde aswell, he and nash block each other, and neither get any action. Martin is correct in assumin that Nash wants the blond for himself. If Nash had convinced the players to each go for the 4 friends, leaving the blonde for himself, the result would have been an Equilibrium, this did not happen however as John had to hurry off to write some paper, think it was called 'Equilibrium Points In Non-Co-operative Games'.
Hollywood Nash told EVERYONE to ignore the blonde, hence the payoffs are not maximised and there is scope to deviate. Hence the 'equilibrium' portrayed in the movie is NOT a NE.
Nash Equilibrium does not result in maximum payoff. It's the best strategy for all, given the strategies of others.
Since everyone explicitly wanted to go for the blonde, it's obvious that everyone would go for her and no one would get the girl. Since they already knew that this would happen, they would each get the best possible payoff by going for the friends instead.
APPLIED ECONOMICS FTW!
Thongger 4 weeks ago
The theory at the time was that businesses work best when we all compete against each other because competition brings about the best economic results. This is what capitalism is about - the market forces determining the outcomes through competition. But Nash realises that there are situations where we need to work collectively in order for everyone to win.
louiseobrien2010 1 month ago
i wish this guy could do my micro test right now
mfhjk 2 months ago
its brilliant......
themanwithaheart 3 months ago
Come on - This is movie guys..... And iam sure they did some investigation before making this as a movie especially about Adam smith :)
Also I think the english that he spoke in this movie was simple and especially the english in this video is easily understandable :))
and ofc, i understood in basic terms....
beesathish 3 months ago
This is not Nash Equilibrium! This is Hollywood's pathetic attempt to explain something in layman's terms.
Gizmou07 4 months ago
judd hirsch loves playing mentors of mathematicians.
first this then Numb3rs.
InTecknicolour 4 months ago
everybody is actin a smart here
danielst8 6 months ago
just to repeat what's been commented on other uploads of this scene. apart from the sexism in it, this is clearly a wrong representation of what a nash equ. is! what nash puts up here is not even a pareto efficient situation. a nash equ. is when no one would be better off changing his own strategy while the others keep theirs, but if just one player goes to the blond he will clearly be better off! so there are 4 nash equ. here: br, br, br, bl; br, br, bl, br; br, bl, br, br; bl, br, br, br!
Jackies1979 7 months ago
correct me if im wrong. so this is pretty much using the knowledge that humans are inirrational to create an equal equilibrium for each person whilst maximising utility equally between them.
meiksm 8 months ago
Incomplete! Incomplete!
Taake1977 9 months ago
Bogus, they got the implication of Doctor Adam Smith’s economic theory wrong in this clip.
….not to mention that it’s a shorty of the 5 ladies, the long thick curly hair brunette in the navy & maroon skirt that is #1 sexy!
The object here is to go along and //say// that the blonde is #1 and allow the peer pressure to leave the one that is the best mate wide open! Then play it up that you lost, when you walk away with the best lady without a struggle.
Fools rush in!
centurion180ad 1 year ago
This is my favorite moment in movie.
Hi is Unique
Brasco017 1 year ago
aaaaah... thank you. ahahahahahahahahahahaah he's a genius.
jepa33 1 year ago
Comment removed
yejiahua 1 year ago
@yejiahua You don't see any incompleteness of Adam Smith's theory, because there isn't one!
Good for you.
centurion180ad 1 year ago
KidVB is correct. Slipshod88 is very wrong. This is not a NE. The game, as presented, actually has 5 Nash equilibria in pure strategies, each one represented by the strategies described by kidVB but for each player, not only for Nash. There is no NE where noone goes for the blonde. E.g. [Martin gets the blonde, the other 4 get her friends] [Nash gets the blonde, the other 4 get her friends] etc are all NEs.
george12345100 1 year ago
This has been flagged as spam show
@george12345100 They got the implication of Doctor Adam Smith’s economic theory wrong in this clip.
….not to mention that it’s a shorty of the 5 ladies, the long thick curly hair brunette in the navy & maroon skirt that is #1 sexy!
The object here is to go along and //say// that the blonde is #1 and allow the peer pressure to leave the one that is the best mate wide open! Then play it up that you lost, when you walk away with the best lady without a struggle.
Comparative Advantage!
centurion180ad 1 year ago
@george12345100 I thought Nash explained that if one of them goes for the blonde, the others will too, thus forfeiting their chances of getting any of the friends? So no matter what, they'll be worse off if someone goes for the blonde. But anyway, yeah, years after, I realize that this situation is more similar to a cartel, which is unstable, and thus not a true example of Nash Equilibrium.
slipshod88 4 months ago
puuure genius...love dis film...its a bit sad when he gets sick but it really makes you think hard about everything
neobahamaut 2 years ago
my tomorrow's lecture is about this game theory XD
hansoeij 2 years ago
i love this movie! it inspires me as i don't have focus too... two thumbs up!
atpmusic9 2 years ago
Enable embedding please.
rtsjoe 2 years ago
it looks really cool.
but in chinese, we have talked about this for at least thousand years. It is not noticed because we don't prove. we are bad at this.
拔蚌相爭, 漁人得利
banzaofking 3 years ago
Just like the chinese sent an the first man into space, we know, we know...
sapitovid 3 years ago
it doesn't matter who gets there first, but who gets it first.
newculture2002 2 years ago
Cant believe people thumbs downed this..
lmaginations 2 years ago
Wrong, hollywood didnt "tell everyone to ignore the blonde," Nash just said that each member's BR (best response) given what they thought everyone else would do would be to ignore the blonde. Remember, NE doesn't necessarily maximize aggregate utility. (which would be for everyone to get the blonde to themselves, which in this case, is impossible.)
taromakino 4 years ago 12
yes sir!!! true!!
megalolele 3 years ago
@taromakino Yes, their Best Response is to ignore the blonde, because Nash is already with her. If the 4 guys are dancing with the 4 girls, and the blonde girl is sitting there alone; the best response for each of the 4 guys is to deviate from the girl they're dancing with and go for the blond. Thus none of the guys are playing their best response under your example and we dont have the NE.
kidVB 1 year ago
@kidVB
You totally dont understand what taro is saying. Nash's reason for not picking the blonde is because none of them will get any girls of they did. Its a prisoners dilemma. If they all deviate and pick the blonde, blonde will not pick any of the guys resulting in a Nash of 0 payoffs for each.
But instead of everyone deviating to pick the blonde, they all would get positive utility if they all cooperate and the other 4 resulting in each dude getting 1 girl.
441meatloaf 4 months ago
Hi Taromakino
I have not seen the movie but please could you explain what is Nash's goal here, to maximize his own payoff or the overall groups payoff?
philipjterry 5 months ago
Hollywood Nash told 'Everyone' to ignor blonde, so he could have her. If you watch, only Nash's 4 friends go for the other girls, Nash doesn't.......... meaning he intends to go for the blonde once his friends are paired with the 4 other girls, if this occurs, he will have maximised his utility given other players strategies, and none of the players will have a reason to deviate from their current strategy as it will reduce utility.
kidVB 4 years ago
nash no consideraba participar de todos modos.
MIGUEL2005LIMA 2 years ago
@kidVB Bogus, they got the implication of Doctor Adam Smith’s economic theory wrong in this vid-clip.
….not to mention that it’s a shorty of the 5 ladies, the long thick curly hair brunette in the navy & maroon skirt that is #1 sexy!
The object here is to go along and //say// that the blonde is #1 and allow the peer pressure to leave the one that is the best mate wide open! Then play it up that you lost, when you walk away with the best lady without a struggle.
Comparative Advantage!
centurion180ad 1 year ago
@centurion180ad You've gained my respect, I haven't looked at it from a comparative point of view! But I still think the blonde is the cutest, and Hollywood thought about this, that's why she is the only blonde in the group of 5, she stands out from the rest of the group by being original in a relative way.
Nimrodktm 7 months ago
@kidVB nash is a impartial third person, he does not intend to get the blonde, if you watch it again, you will see the four guys came in to get the blonde while nash was doing his work with no intention of getting the blonde
flamerazor2 11 months ago
@kidVB is human nature, all the individues want the big prize, but comparative examples teached us to share the lower prizes to our fellows , and thats the problem of today's economy
XOPAUXO 10 months ago
Might be your favourite scene, but Hollywood got the Nash Equilibrium wrong bucko. ;)
23house23 4 years ago
Not really the point, i like this video for its dramatic portayel of a sudden realisation of a profound concept. Your statement is not entirely correct tho, his example is a perfect explanation of Nash Equilibrium, his statement that everyone gains their maximum utility form doing whats best for themselves and the group it incorrect.
But yes Nash Equilibrium is reached when the strategy profile for each player, is the optimal response to the other players strategies.
kidVB 4 years ago
So if the 4 friends go for the 4 girls AND Nash goes for the fitter blond girl, this represents a Nash Equilibrium, noone can improve ther payoff given the other players strategies.
kidVB 4 years ago
If martin decided to go for blonde aswell, he and nash block each other, and neither get any action. Martin is correct in assumin that Nash wants the blond for himself. If Nash had convinced the players to each go for the 4 friends, leaving the blonde for himself, the result would have been an Equilibrium, this did not happen however as John had to hurry off to write some paper, think it was called 'Equilibrium Points In Non-Co-operative Games'.
kidVB 4 years ago
Hollywood Nash told EVERYONE to ignore the blonde, hence the payoffs are not maximised and there is scope to deviate. Hence the 'equilibrium' portrayed in the movie is NOT a NE.
23house23 4 years ago
Nash Equilibrium does not result in maximum payoff. It's the best strategy for all, given the strategies of others.
Since everyone explicitly wanted to go for the blonde, it's obvious that everyone would go for her and no one would get the girl. Since they already knew that this would happen, they would each get the best possible payoff by going for the friends instead.
slipshod88 3 years ago 9
@slipshod88 can you give a concrete example in a business like situation?
philipjterry 5 months ago