Why we think it's OK to cheat and steal (sometimes) | Dan Ariely

775,712 views ・ 2009-03-18

TED


Please double-click on the English subtitles below to play the video.

Translator: Nuria Estrada Reviewer: Jordi Niñerola
00:19
I want to talk to you today a little bit
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Avui us vull parlar una mica
00:21
about predictable irrationality.
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sobre la irracionalitat predictible.
00:24
And my interest in irrational behavior
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El meu interès en el comportament irracional
00:28
started many years ago in the hospital.
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va començar fa molts anys a l'hospital.
00:31
I was burned very badly.
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Vaig patir cremades importants.
00:35
And if you spend a lot of time in hospital,
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I si passes molt de temps a l'hospital,
00:38
you'll see a lot of types of irrationalities.
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veus molts tipus d'irracionalitats.
00:41
And the one that particularly bothered me in the burn department
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La que més em molestava mentre era a la secció de cremats
00:46
was the process by which the nurses took the bandage off me.
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era el procés pel que les infermeres em retiraven les benes.
00:51
Now, you must have all taken a Band-Aid off at some point,
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Segur que en algun moment us heu tret una tireta,
00:53
and you must have wondered what's the right approach.
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i us haureu preguntat quina és la millor manera.
00:56
Do you rip it off quickly -- short duration but high intensity --
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L'arranqueu ràpidament - curta duració però alta intensitat -
01:00
or do you take your Band-Aid off slowly --
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o treieu la tireta lentament -
01:02
you take a long time, but each second is not as painful --
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tardeu més temps, però cada segon no és tant dolorós -
01:06
which one of those is the right approach?
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quina manera és la millor?
01:09
The nurses in my department thought that the right approach
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Les infermeres de la meva secció pensaven que la millor manera
01:13
was the ripping one, so they would grab hold and they would rip,
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era arrancar-les ràpid, així que les agafaven i les arrancaven,
01:16
and they would grab hold and they would rip.
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i les agafaven i les arrancaven.
01:18
And because I had 70 percent of my body burned, it would take about an hour.
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I com que jo tenia el 70 per cent del meu cos cremat, tardaven una hora.
01:22
And as you can imagine,
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Com us podeu imaginar,
01:25
I hated that moment of ripping with incredible intensity.
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odiava aquell moment d'arrancar amb una intensitat increïble.
01:29
And I would try to reason with them and say,
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I intentava raonar amb elles i dir-los-hi,
01:31
"Why don't we try something else?
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"Per què no ho provem de fer diferent?
01:32
Why don't we take it a little longer --
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Per què no tardem una mica més -
01:34
maybe two hours instead of an hour -- and have less of this intensity?"
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potser dues hores en comptes d'una hora - i reduïm la intensitat?"
01:39
And the nurses told me two things.
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I les infermeres em deien dues coses.
01:41
They told me that they had the right model of the patient --
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Em deien que sabien quina era la millor manera per al pacient -
01:45
that they knew what was the right thing to do to minimize my pain --
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i que sabien com fer per reduir el meu dolor -
01:48
and they also told me that the word patient doesn't mean
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i també em deien que la paraula pacient no significa
01:51
to make suggestions or to interfere or ...
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fer suggerències o interferir o...
01:53
This is not just in Hebrew, by the way.
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I això no és només en hebreu, per cert.
01:56
It's in every language I've had experience with so far.
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Passa en cada idioma amb què he tingut experiència fins ara.
01:59
And, you know, there's not much -- there wasn't much I could do,
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I, sabeu, no hi havia - no podia fer gaire més,
02:03
and they kept on doing what they were doing.
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així que seguien fent el que feien.
02:06
And about three years later, when I left the hospital,
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I uns tres anys després, quan vaig marxar de l'hospital,
02:08
I started studying at the university.
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vaig començar a estudiar a la universitat.
02:11
And one of the most interesting lessons I learned
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I una de les lliçons més interessant que vaig aprendre
02:14
was that there is an experimental method
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és que existeix un mètode experimental
02:16
that if you have a question you can create a replica of this question
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pel què si tens una pregunta pots crear una rèplica de la pregunta
02:20
in some abstract way, and you can try to examine this question,
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d'alguna forma abstracta pots intentar examinar aquesta qüestió,
02:24
maybe learn something about the world.
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i potser aprendre quelcom sobre el món.
02:26
So that's what I did.
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Així que això és el que vaig fer.
02:28
I was still interested
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Encara estava interessat
02:29
in this question of how do you take bandages off burn patients.
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en aquest assumpte de com retirar les benes dels pacients cremats.
02:31
So originally I didn't have much money,
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Al principi no tenia masses diners,
02:34
so I went to a hardware store and I bought a carpenter's vice.
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així que vaig anar a una ferreteria i vaig comprar un cargol de banc.
02:38
And I would bring people to the lab and I would put their finger in it,
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I portava la gent al laboratori i hi posava el seu dit,
02:42
and I would crunch it a little bit.
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i l'apretava una mica.
02:44
(Laughter)
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(Riures)
02:46
And I would crunch it for long periods and short periods,
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I l'apretava durant un temps llarg o un temps curt,
02:49
and pain that went up and pain that went down,
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i el feia que el dolor augmentés o disminuís,
02:51
and with breaks and without breaks -- all kinds of versions of pain.
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amb paues o sense pauses - tot tipus de versions de dolor.
02:55
And when I finished hurting people a little bit, I would ask them,
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I quan acabava de fer-los una mica de mal, els preguntava:
02:57
so, how painful was this? Or, how painful was this?
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Com de dolorós era això? I això?
02:59
Or, if you had to choose between the last two,
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O, si haguessis de triar entre els últims dos,
03:01
which one would you choose?
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quin triaries?
03:03
(Laughter)
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(Riures)
03:06
I kept on doing this for a while.
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Vaig seguir fent això durant un temps.
03:09
(Laughter)
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(Riures)
03:11
And then, like all good academic projects, I got more funding.
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I llavors, com passa amb tots els bons projectes acadèmics, vaig rebre més finançament.
03:15
I moved to sounds, electrical shocks --
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Vaig passar a sorolls, descàrregues elèctriques-
03:17
I even had a pain suit that I could get people to feel much more pain.
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fins i tot tenia un vestit de dolor amb el què podia fer sentir més mal a la gent.
03:22
But at the end of this process,
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Però al final d'aques procés,
03:26
what I learned was that the nurses were wrong.
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el que vaig aprendre és que les infermeres estaven equivocades.
03:29
Here were wonderful people with good intentions
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Eren gent meravellosa amb bones intencions
03:32
and plenty of experience, and nevertheless
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i molta experiència, i malgrat tot
03:34
they were getting things wrong predictably all the time.
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s'equivocaven de forma predictible de forma repetida.
03:38
It turns out that because we don't encode duration
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Resulta que com no registrem la duració
03:41
in the way that we encode intensity,
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de la manera que registrem la intensitat,
03:43
I would have had less pain if the duration would have been longer
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hagués patit menys dolor si la duració hagués estat més llarga
03:47
and the intensity was lower.
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i la intensitat més baixa.
03:49
It turns out it would have been better to start with my face,
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Resulta que hagués estat millor començar amb la cara,
03:52
which was much more painful, and move toward my legs,
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que era més dolorosa, i seguir cap a les cames,
03:54
giving me a trend of improvement over time --
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donant-me una tendència a la millora amb el temps -
03:57
that would have been also less painful.
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així hagués sigut menys dolorós.
03:58
And it also turns out that it would have been good
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I també resulta que hauria estat millor
04:00
to give me breaks in the middle to kind of recuperate from the pain.
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deixar-me fer pauses per a poder recuperar-me del dolor.
04:02
All of these would have been great things to do,
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Tot això haguessin estat bones coses a fer,
04:04
and my nurses had no idea.
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i les meves infermeres no en tenien ni idea.
04:07
And from that point on I started thinking,
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I des d'aquell moment vaig començar a pensar:
04:08
are the nurses the only people in the world who get things wrong
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són les infermeres les úniques persones al món que s'equivoquen
04:11
in this particular decision, or is it a more general case?
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en aquesta decisió concreta, o és una situació més general?
04:14
And it turns out it's a more general case --
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I resulta que és una situació més general -
04:16
there's a lot of mistakes we do.
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fem molts errors.
04:19
And I want to give you one example of one of these irrationalities,
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I vull donar-vos un exemple d'aquestes irracionalitats,
04:24
and I want to talk to you about cheating.
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i us vull parlar de fer trampes.
04:27
And the reason I picked cheating is because it's interesting,
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La raó per la que vaig triar el fer trampes és perquè és interessant,
04:29
but also it tells us something, I think,
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però també perquè ens diu quelcom, crec,
04:31
about the stock market situation we're in.
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sobre la situació de la borsa en la què estem.
04:34
So, my interest in cheating started
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El meu interés en estafar va començar
04:37
when Enron came on the scene, exploded all of a sudden,
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quan Enron va sortir a la llum, va explotar de sobte,
04:39
and I started thinking about what is happening here.
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i vaig començar a pensar sobre què passava aquí.
04:42
Is it the case that there was kind of
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Es tracta d'un cas en què
04:43
a few apples who are capable of doing these things,
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unes quantes pomes són capaces de fer tot això,
04:46
or are we talking a more endemic situation,
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o estem parlant d'una situació més endèmica,
04:48
that many people are actually capable of behaving this way?
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en què, de fet, moltes persones són capaces de comportar-se d'aquesta manera?
04:52
So, like we usually do, I decided to do a simple experiment.
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Així que, com solem fer, vaig decidir fer un senzill experiment.
04:56
And here's how it went.
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I així és com anava.
04:57
If you were in the experiment, I would pass you a sheet of paper
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Si estaveu a l'experiment, jo us donava un full de paper
05:00
with 20 simple math problems that everybody could solve,
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amb 20 problemes matemàtics senzills que tots podríem resoldre,
05:04
but I wouldn't give you enough time.
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però no us donava prou temps.
05:06
When the five minutes were over, I would say,
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Passats 5 minuts, jo deia:
05:08
"Pass me the sheets of paper, and I'll pay you a dollar per question."
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"Doneu-me els fulls de paper, i us pagaré un dòlar per problema."
05:11
People did this. I would pay people four dollars for their task --
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I la gent ho feia. Pagava a la gent 4 dòlars per la seva feina -
05:15
on average people would solve four problems.
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de mitjana la gent resolia 4 problemes.
05:17
Other people I would tempt to cheat.
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A altres persones els temptava a fer trampes.
05:20
I would pass their sheet of paper.
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Els hi passava la fulla de paper.
05:21
When the five minutes were over, I would say,
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I quan passaven els 5 minuts, deia,
05:23
"Please shred the piece of paper.
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"Si us plau, trenqueu el tros de paper.
05:24
Put the little pieces in your pocket or in your backpack,
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Poseu els trossos a la vostra butxaca o a la vostra motxilla
05:27
and tell me how many questions you got correctly."
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i digueu-me quantes preguntes heu resolt."
05:30
People now solved seven questions on average.
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Ara la gent resolia 7 preguntes de mitjana.
05:33
Now, it wasn't as if there was a few bad apples --
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Així doncs, no es tractava d'unes poques pomes podrides -
05:38
a few people cheated a lot.
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uns pocs estafaven molt.
05:41
Instead, what we saw is a lot of people who cheat a little bit.
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En canvi, el que vèiem és que molta gent estafava una mica.
05:44
Now, in economic theory,
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Segons la teoria econòmica,
05:47
cheating is a very simple cost-benefit analysis.
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fer trampes és una senzilla anàlisi cost-benefici.
05:50
You say, what's the probability of being caught?
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Dius, quina és la probabilitat que m'enxampin?
05:52
How much do I stand to gain from cheating?
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Quan hi tinc a guanyar si faig trampes?
05:55
And how much punishment would I get if I get caught?
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I quin càstig tindria si m'enxampessin?
05:57
And you weigh these options out --
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I sospeses aquests opcions -
05:59
you do the simple cost-benefit analysis,
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fas una senzilla anàlisi cost-benefici,
06:01
and you decide whether it's worthwhile to commit the crime or not.
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i decideixes si val la pena fer el delicte o no.
06:04
So, we try to test this.
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Així que vam posar-ho a prova.
06:06
For some people, we varied how much money they could get away with --
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Per alguna gent, canviàvem quants diners podien aconseguir -
06:10
how much money they could steal.
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quants diners podien robar.
06:11
We paid them 10 cents per correct question, 50 cents,
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Pagàvem 10 centaus per resposta correcta, 50 centaus,
06:14
a dollar, five dollars, 10 dollars per correct question.
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un dòlar, 5 dòlars, 10 dòlars per resposta correcta.
06:17
You would expect that as the amount of money on the table increases,
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Pensaries que tal i com la quantitat de diners sobre la taula augmentava,
06:21
people would cheat more, but in fact it wasn't the case.
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la gent mentiria més, però de fet no va passar això.
06:24
We got a lot of people cheating by stealing by a little bit.
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Molta gent feia trampes robant una mica.
06:27
What about the probability of being caught?
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I què hi ha sobre la probabilitat de ser enxampat?
06:30
Some people shredded half the sheet of paper,
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Algunes persones trituraven només la meitat del paper,
06:32
so there was some evidence left.
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així que quedava quelcom de prova.
06:33
Some people shredded the whole sheet of paper.
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Altres trituraven tot el paper.
06:35
Some people shredded everything, went out of the room,
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Algunes persones trituraven tot, sortien de l'habitació,
06:38
and paid themselves from the bowl of money that had over 100 dollars.
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i es cobraven d'un bol de diners on hi havia més de 100 dòlars.
06:41
You would expect that as the probability of being caught goes down,
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Esperaries que tal i com la probabilitat de ser enxampat es redueix,
06:44
people would cheat more, but again, this was not the case.
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la gent mentiria més, però altre cop, això no passava.
06:47
Again, a lot of people cheated by just by a little bit,
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Altre cop, la gent enganyava només una mica.
06:50
and they were insensitive to these economic incentives.
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i eren insensibles a aquests incentius econòmics.
06:53
So we said, "If people are not sensitive
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Així que vam dir: "Si la gent és no és sensible
06:54
to the economic rational theory explanations, to these forces,
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a les explicacions de la teoria racional econòmica, a aquests factors,
06:59
what could be going on?"
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què està passant?"
07:02
And we thought maybe what is happening is that there are two forces.
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I vam pensar que potser el que passa és que hi han dos factors.
07:05
At one hand, we all want to look at ourselves in the mirror
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D'una banda, tots volem poder mirar-nos al mirall
07:07
and feel good about ourselves, so we don't want to cheat.
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i sentir-nos bé amb nosaltres mateixos, així que no volem fer trampes.
07:10
On the other hand, we can cheat a little bit,
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D'altra banda, podem fer una mica de trampes,
07:12
and still feel good about ourselves.
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i seguir sentint-nos bé amb nosaltres.
07:14
So, maybe what is happening is that
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Així que potser el que passa és que
07:15
there's a level of cheating we can't go over,
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hi ha un nivell d'engany que no podem superar,
07:17
but we can still benefit from cheating at a low degree,
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però si que ens beneficiem d'enganyar una mica,
07:21
as long as it doesn't change our impressions about ourselves.
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mentre no ens canviï la nostra pròpia impressió de nosaltres.
07:24
We call this like a personal fudge factor.
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Ho anomenem un marge personal.
07:28
Now, how would you test a personal fudge factor?
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I doncs, com examinem el marge personal?
07:32
Initially we said, what can we do to shrink the fudge factor?
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Al principi vam dir, què podem fer per reduir el marge personal?
07:36
So, we got people to the lab, and we said,
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Fèiem anar a la gent al laboratori i els dèiem:
07:38
"We have two tasks for you today."
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"Tenim dos tasques per vosaltres avui."
07:40
First, we asked half the people
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Primer, demanàvem a la meitat de la gent
07:41
to recall either 10 books they read in high school,
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que recordessin 10 llibres que havien llegit a l'institut,
07:43
or to recall The Ten Commandments,
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o els 10 Manaments,
07:46
and then we tempted them with cheating.
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i llavors els temptàvem amb fer trampes.
07:48
Turns out the people who tried to recall The Ten Commandments --
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Resulta que la gent que intentaven recordar els 10 Manaments -
07:51
and in our sample nobody could recall all of The Ten Commandments --
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i a la nostra mostra ningú va aconseguir recordar tots els 10 Manaments -
07:54
but those people who tried to recall The Ten Commandments,
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doncs, a aquells que intentaven recordar els 10 Manaments,
07:58
given the opportunity to cheat, did not cheat at all.
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quan tenien la oportunitat de fer trampes, no en feien gens.
08:01
It wasn't that the more religious people --
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No era que la gent fos més religiosa -
08:03
the people who remembered more of the Commandments -- cheated less,
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la gent que recordava més Manaments - fessin menys trampes,
08:04
and the less religious people --
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i la gent menys religiosa -
08:06
the people who couldn't remember almost any Commandments --
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la gent que gairebé no recordaven cap Manament -
08:07
cheated more.
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fessin més trampes.
08:09
The moment people thought about trying to recall The Ten Commandments,
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Quan la gent intentava recordar els 10 Manaments,
08:13
they stopped cheating.
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deixaven de fer trampes.
08:14
In fact, even when we gave self-declared atheists
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De fet, fins i tot quan fèiem jurar amb la Bíblia
08:16
the task of swearing on the Bible and we give them a chance to cheat,
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als qui es declaraven ateus, i els donàvem la oportunitat de fer trampes,
08:20
they don't cheat at all.
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no en feien gens.
08:24
Now, Ten Commandments is something that is hard
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Ara, els 10 Manaments és quelcom que seria difícil
08:26
to bring into the education system, so we said,
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d'introduir al sistema educatiu, així que vam dir:
08:28
"Why don't we get people to sign the honor code?"
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"Per què no fem que la gent signi un codi d'honor?"
08:30
So, we got people to sign,
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Així que vam fer que la gent signés:
08:32
"I understand that this short survey falls under the MIT Honor Code."
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"Entenc que aquest estudi està sota el Codi d'Honor del MIT"
08:36
Then they shredded it. No cheating whatsoever.
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I llavors ho trituraven. Res de trampes.
08:39
And this is particularly interesting,
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I això és paritcularment interessant,
08:40
because MIT doesn't have an honor code.
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perquè MIT no té un codi d'honor.
08:42
(Laughter)
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(Riures)
08:47
So, all this was about decreasing the fudge factor.
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Així que tot això era per reduir el marge personal.
08:51
What about increasing the fudge factor?
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I com s'incrementa el marge personal?
08:54
The first experiment -- I walked around MIT
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El primer experiment - jo anava pel MIT
08:56
and I distributed six-packs of Cokes in the refrigerators --
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i distribuia paquets de 6 llaunes de Coca-Cola per les neveres -
08:59
these were common refrigerators for the undergrads.
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eren neveres d'ús comú per als estudiants.
09:01
And I came back to measure what we technically call
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I tornava per mesurar el que tècnicament anomenem
09:04
the half-lifetime of Coke -- how long does it last in the refrigerators?
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la vida mitja de la Coca-Cola - quant temps dura a les neveres?
09:08
As you can expect it doesn't last very long; people take it.
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Com us podeu imaginar, no dura gaire; la gent se l'endú.
09:11
In contrast, I took a plate with six one-dollar bills,
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En canvi, vaig agafar safates amb 6 bitllets de dòlar,
09:15
and I left those plates in the same refrigerators.
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i vaig deixar aquelles safates a les mateixes neveres.
09:18
No bill ever disappeared.
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No va desaparèixer cap bitllet.
09:19
Now, this is not a good social science experiment,
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Això no és un bon experiment de ciència social,
09:22
so to do it better I did the same experiment
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així que per fer-ho millor vaig fer el mateix
09:25
as I described to you before.
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que us he descrit abans.
09:27
A third of the people we passed the sheet, they gave it back to us.
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Un terç de la gent a la què donàvem el full, ens el tornava.
09:30
A third of the people we passed it to, they shredded it,
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Un terç de la gent el triturava,
09:33
they came to us and said,
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venia i ens deia:
09:34
"Mr. Experimenter, I solved X problems. Give me X dollars."
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"Sr Investigador, he resolt X problemes. Doni'm X dòlars."
09:37
A third of the people, when they finished shredding the piece of paper,
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Un terç de la gent, quan acabaven de triturar el paper,
09:40
they came to us and said,
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venien i ens deien:
09:42
"Mr Experimenter, I solved X problems. Give me X tokens."
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"Sr. Investigador, he resolt X problemes. Doni'm X fitxes."
09:48
We did not pay them with dollars; we paid them with something else.
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No els pagavem amb dòlars; sinó amb una altra cosa.
09:51
And then they took the something else, they walked 12 feet to the side,
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I llavors agafaven aquesta altra cosa, caminaven 4 metres més enllà,
09:54
and exchanged it for dollars.
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i ho intercanviaven per dòlars.
09:56
Think about the following intuition.
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Penseu en la següent intuïció.
09:58
How bad would you feel about taking a pencil from work home,
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Com de malament us sentiríeu per endur-vos un llapis de la feina a casa,
10:01
compared to how bad would you feel
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en comparació amb com us sentiríeu
10:03
about taking 10 cents from a petty cash box?
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per agafar 10 centaus d'una caixa amb monedes?
10:05
These things feel very differently.
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Les dues coses es senten de forma molt diferent.
10:08
Would being a step removed from cash for a few seconds
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Quina diferència marcaria el fet d'allunyar un pas els diners,
10:11
by being paid by token make a difference?
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durant uns segons, al pagar-los amb fitxes?
10:14
Our subjects doubled their cheating.
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Els nostres subjectes feien el doble de trampes.
10:16
I'll tell you what I think
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Us diré el que penso
10:18
about this and the stock market in a minute.
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sobre això i sobre la borsa en un minut.
10:21
But this did not solve the big problem I had with Enron yet,
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Però això encara no havia resolt el gran problema que tenia amb Enron,
10:25
because in Enron, there's also a social element.
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perquè a Enron també hi ha un element social.
10:28
People see each other behaving.
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La gent veu com es comporten els altres.
10:29
In fact, every day when we open the news
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De fet, cada dia quan posem les notícies
10:31
we see examples of people cheating.
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veiem exemples de gent fent trampes.
10:33
What does this cause us?
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Quin efecte té això en nosaltres?
10:36
So, we did another experiment.
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Així que vam fer un altre experiment.
10:37
We got a big group of students to be in the experiment,
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Vam agafar un gran grup d'estudiants,
10:40
and we prepaid them.
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i els vam pagar per avançat.
10:41
So everybody got an envelope with all the money for the experiment,
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Tothom rebia un sobre amb tots els diners per l'experiment,
10:44
and we told them that at the end, we asked them
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i els vam dir que al final, els demanaríem
10:46
to pay us back the money they didn't make. OK?
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que ens retornessin els diners que no havien aconseguit. D'acord?
10:50
The same thing happens.
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Passava el mateix.
10:51
When we give people the opportunity to cheat, they cheat.
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Quan donem a la gent la oportunitat de fer trampes, en fan.
10:53
They cheat just by a little bit, all the same.
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Fan només una mica de trampes, també.
10:56
But in this experiment we also hired an acting student.
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Però en aquest experiment teniem un actor que feia d'estudiant.
10:59
This acting student stood up after 30 seconds, and said,
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Aquest actor s'aixecava al cap de 30 segons i deia:
11:03
"I solved everything. What do I do now?"
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"Ja ho he resolt tot. Ara què faig?"
11:06
And the experimenter said, "If you've finished everything, go home.
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I l'investigador deia: "Si ho has acabat tot, pots anar-te'n.
11:10
That's it. The task is finished."
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Ja està. La tasca s'ha acabat."
11:11
So, now we had a student -- an acting student --
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Així que ara teníem un estudiant - un actor que feia d'estudiant -
11:15
that was a part of the group.
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que era part del grup.
11:17
Nobody knew it was an actor.
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Ningú sabia que era un actor.
11:19
And they clearly cheated in a very, very serious way.
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I enganyava de forma clara i important.
11:23
What would happen to the other people in the group?
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Què passava amb la resta de gent del grup?
11:26
Will they cheat more, or will they cheat less?
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Enganyaven més o menys?
11:29
Here is what happens.
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Això és el que passava.
11:31
It turns out it depends on what kind of sweatshirt they're wearing.
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Resulta que depenia de quina samarreta portava.
11:35
Here is the thing.
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Aquí està el tema.
11:37
We ran this at Carnegie Mellon and Pittsburgh.
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Vam fer això a Carnegie Mellon, a Pittsburgh.
11:40
And at Pittsburgh there are two big universities,
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I a Pittsburgh hi han dues grans universitats,
11:42
Carnegie Mellon and University of Pittsburgh.
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Carnegie Mellon i University of Pittsburgh.
11:45
All of the subjects sitting in the experiment
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Tots els subjectes de l'experiment
11:47
were Carnegie Mellon students.
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eren alumnes de Carnegie Mellon.
11:49
When the actor who was getting up was a Carnegie Mellon student --
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Quan l'actor que s'aixecava era un estudiant de Carnegie Mellon -
11:53
he was actually a Carnegie Mellon student --
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de fet era un estudiant de Carnegie Melon -
11:55
but he was a part of their group, cheating went up.
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era part del seu grup, les trampes augmentaven.
11:59
But when he actually had a University of Pittsburgh sweatshirt,
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Però quan portava una samarreta de la Universitat de Pittsburgh,
12:03
cheating went down.
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les trampes es reduien.
12:05
(Laughter)
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(Riures)
12:08
Now, this is important, because remember,
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Això és important perquè, recordeu,
12:11
when the moment the student stood up,
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quan l'estudiant s'aixecava,
12:13
it made it clear to everybody that they could get away with cheating,
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quedava clar per tothom que se'n podien sortir de fer trampes,
12:16
because the experimenter said,
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perquè l'investigador deia:
12:18
"You've finished everything. Go home," and they went with the money.
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"Ho has acabat tot. Marxa." i marxava amb els diners.
12:20
So it wasn't so much about the probability of being caught again.
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Així que no es tractava de la probabilitat de que t'enxampessin.
12:23
It was about the norms for cheating.
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Es tractava de les normes sobre l'engany.
12:26
If somebody from our in-group cheats and we see them cheating,
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Si algú del nostre grup enganya i ho veiem,
12:29
we feel it's more appropriate, as a group, to behave this way.
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sentim que és més adequat, com a grup, i actuem d'aquella manera.
12:33
But if it's somebody from another group, these terrible people --
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Però si és algú d'un altre grup, d'aquelles persones terribles -
12:35
I mean, not terrible in this --
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vull dir, no terribles per això -
12:37
but somebody we don't want to associate ourselves with,
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però algú amb qui no ens volem sentir relacionats,
12:39
from another university, another group,
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d'una altra universitat, d'un altre grup,
12:41
all of a sudden people's awareness of honesty goes up --
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de sobte la consciència de la gent sobre la honestedat augmenta -
12:44
a little bit like The Ten Commandments experiment --
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una mica com amb l'experiment dels 10 Manaments -
12:46
and people cheat even less.
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i la gent menteix menys.
12:50
So, what have we learned from this about cheating?
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I doncs, què hem après sobre el fer trampes?
12:54
We've learned that a lot of people can cheat.
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Hem après que molta gent pot fer trampes.
12:57
They cheat just by a little bit.
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Fan només una mica de trampes.
13:00
When we remind people about their morality, they cheat less.
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Quan recordem a la gent sobre la seva moral, enganyen menys.
13:04
When we get bigger distance from cheating,
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Quan fem més gran la distància de l'engany,
13:07
from the object of money, for example, people cheat more.
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de l'objecte dels diners, per exemple, la gent enganya més.
13:11
And when we see cheating around us,
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I quan veiem que els altres enganyen,
13:13
particularly if it's a part of our in-group, cheating goes up.
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especialment si és gent del nostre grup, l'engany augmenta.
13:17
Now, if we think about this in terms of the stock market,
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Si pensem en això en termes del mercat de borsa,
13:20
think about what happens.
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penseu què passa.
13:21
What happens in a situation when you create something
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Què passa en una situació en què crees quelcom
13:24
where you pay people a lot of money
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on pagues molts diners a la gent
13:26
to see reality in a slightly distorted way?
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per què vegin la realitat de forma una mica distorsionada?
13:29
Would they not be able to see it this way?
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No ho veurien d'aquesta manera?
13:32
Of course they would.
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És clar que sí.
13:33
What happens when you do other things,
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Què passa quan fas altres coses,
13:34
like you remove things from money?
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com treure les coses dels diners?
13:36
You call them stock, or stock options, derivatives,
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Els anomenes borsa, opcions d'accions, accions derivatives,
13:39
mortgage-backed securities.
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cèdules hipotecàries.
13:40
Could it be that with those more distant things,
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Podria ser que amb aquestes coses més distants,
13:43
it's not a token for one second,
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no és una fitxa durant un segon,
13:45
it's something that is many steps removed from money
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és quelcom que s'ha allunyat molts passos dels diners
13:47
for a much longer time -- could it be that people will cheat even more?
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durant molt més temps - podria ser que la gent enganyés encara més?
13:51
And what happens to the social environment
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I què passa amb el medi social
13:53
when people see other people behave around them?
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quan la gent veu altres persones comportant-se a prop seu?
13:56
I think all of those forces worked in a very bad way
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Crec que tots aquests factors han anat molt malament
14:00
in the stock market.
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pel mercat de borsa.
14:02
More generally, I want to tell you something
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De manera més general, us vull dir quelcom
14:05
about behavioral economics.
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sobre l'economia del comportament.
14:08
We have many intuitions in our life,
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Tenim moltes intuicions a la nostra vida,
14:12
and the point is that many of these intuitions are wrong.
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i la qüestió és que moltes d'aquestes intuïcions són errònies.
14:15
The question is, are we going to test those intuitions?
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La qüestió és: posarem a prova aquestes intuïcions?
14:18
We can think about how we're going to test this intuition
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Podem pensar en com posar a prova aquestes intuïcions
14:20
in our private life, in our business life,
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en la nostra vida privada, en els nostres negocis,
14:22
and most particularly when it goes to policy,
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i especialment en relació a les normes,
14:25
when we think about things like No Child Left Behind,
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quan pensem en coses com la llei "Cap Nen Deixat Enrere",
14:28
when you create new stock markets, when you create other policies --
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quan creem nous mercats de valors, quan creem altres normes -
14:31
taxation, health care and so on.
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impostos, sanitat, etc.
14:34
And the difficulty of testing our intuition
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I la dificultat en posar a prova la nostra intuïció
14:36
was the big lesson I learned
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va ser la gran lliçó que vaig aprendre
14:38
when I went back to the nurses to talk to them.
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quan vaig tornar per parlar amb les infermeres.
14:40
So I went back to talk to them
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Vaig anar a parlar amb elles
14:42
and tell them what I found out about removing bandages.
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i els vaig dir el que havia descobert sobre retirar les benes.
14:45
And I learned two interesting things.
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I vaig aprendre dues coses interessants.
14:47
One was that my favorite nurse, Ettie,
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Una és que la meva infermera preferida, Ettie,
14:49
told me that I did not take her pain into consideration.
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em va dir que jo no havia tingut en compte el seu dolor.
14:53
She said, "Of course, you know, it was very painful for you.
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Va dir: "És clar, saps, era molt dolorós per tu.
14:55
But think about me as a nurse,
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Però pensa en mi com a infermera,
14:57
taking, removing the bandages of somebody I liked,
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que ha de treure i arrancar les benes d'una persona que m'agradava,
14:59
and had to do it repeatedly over a long period of time.
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i ho havia de fer de forma repetida durant molt temps.
15:02
Creating so much torture was not something that was good for me, too."
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Crear tanta tortura no era quelcom que fos bo per mi, tampoc."
15:05
And she said maybe part of the reason was it was difficult for her.
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I va dir que potser part de la raó era que també era difícil per ella.
15:10
But it was actually more interesting than that, because she said,
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Però era més interessant que això, perquè va dir:
15:13
"I did not think that your intuition was right.
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"No pensava que la teva intuïció fos correcta.
15:18
I felt my intuition was correct."
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Sentia que la meva intuïció era correcta."
15:19
So, if you think about all of your intuitions,
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Si penseu en les vostres intuïcions,
15:21
it's very hard to believe that your intuition is wrong.
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és molt difícil creure que la teva intuïció està equivocada.
15:25
And she said, "Given the fact that I thought my intuition was right ..." --
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I va dir: "Com pensava que la meva intuïció era correcta..." -
15:28
she thought her intuition was right --
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pensava que la seva intuïció era correcta -
15:30
it was very difficult for her to accept doing a difficult experiment
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era molt difícil per ella acceptar fer un experiment difícil
15:35
to try and check whether she was wrong.
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per posar a prova si estava equivocada.
15:37
But in fact, this is the situation we're all in all the time.
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Però, de fet, aquesta és la situació en què ens trobem sempre.
15:41
We have very strong intuitions about all kinds of things --
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Tenim fortes intuïcions sobre tot tipus de coses -
15:44
our own ability, how the economy works,
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les nostres habilitats,sobre com funciona l'economia,
15:47
how we should pay school teachers.
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com hauríem de pagar als professors.
15:49
But unless we start testing those intuitions,
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Però fins que no comencem a posar-les a prova,
15:52
we're not going to do better.
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no millorarem.
15:54
And just think about how better my life would have been
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I penseu només en com de millor podria haver estat la meva vida
15:56
if these nurses would have been willing to check their intuition,
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si aquelles infermeres haguessin estat disposades a posar a prova la seva intuïció,
15:58
and how everything would have been better
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i com tot podria ser millor
15:59
if we just start doing more systematic experimentation of our intuitions.
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si comencéssim a fer experimentació sistemàtica de les nostres intuïcions.
16:04
Thank you very much.
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Moltes gràcies.
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