Esther Duflo: Social experiments to fight poverty

468,900 views ・ 2010-05-04

TED


Molimo dvaput kliknite na engleski titl ispod za reprodukciju videa.

Translator: Velid Begovic Reviewer: Mateja Nenadovic
00:18
So here it is. You can check: I am short, I'm French,
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Dakle, ovdje je: Možete vidjeti, niska sam, ja sam Francuskinja.
00:20
I have a pretty strong French accent,
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Imam prilično jak francuski naglasak,
00:22
so that's going to be clear in a moment.
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i to će biti prilično jasno za koji moment.
00:26
Maybe a sobering thought
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Možda otrežnjujuća pomisao
00:28
and something you all know about.
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i nešto o čemu vi svi znate.
00:30
And I suspect many of you gave
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I pretpostavljam, mnogi od vas su dali
00:32
something to the people of Haiti this year.
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nešto ljudima Haitija ove godine.
00:35
And there is something else
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Ima i nešto drugo
00:37
I believe in the back of your mind
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u što ja vjerujem, u pozadini vašeg uma,
00:39
you also know.
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vi također znate
00:41
That is, every day,
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da, svakodnevno,
00:43
25,000 children die
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25,000 djece umre
00:45
of entirely preventable causes.
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zbog potpuno zaustavljivih uzroka.
00:48
That's a Haiti earthquake every eight days.
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To je zemljotres u Haitiju svakih osam dana.
00:51
And I suspect many of you probably gave something
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I pretpostavljam da su mnogi od vas dali nešto
00:53
towards that problem as well,
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za taj problem također,
00:55
but somehow it doesn't happen
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ali nekako se to ne dešava
00:57
with the same intensity.
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sa istim intenzitetom.
00:59
So why is that?
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Pa, zašto je to slučaj?
01:02
Well, here is a thought experiment for you.
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Dakle, evo jedan misaoni eksperiment za vas.
01:05
Imagine you have a few million dollars that you've raised --
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Zamislite da imate par miliona dolara koje ste skupili.
01:07
maybe you're a politician in a developing country
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Možda ste političar u nekoj zemlji u razvoju,
01:10
and you have a budget to spend. You want to spend it on the poor:
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i imate budžet da potrošite; želite da ga potrošite na siromašne
01:13
How do you go about it?
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Kako da to uradite?
01:16
Do you believe the people who tell you
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Da li vjerujete ljudima koji kažu
01:18
that all we need to do is to spend money?
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da sve treba uraditi je potrošiti pare,
01:20
That we know how to eradicate poverty,
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da mi znamo kako iskorjeniti siromaštvo
01:23
we just need to do more?
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samo trebamo raditi vise?
01:25
Or do you believe the people who tell you that
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Ili vjerujete ljudima koji kažu da
01:27
aid is not going to help, on the contrary it might hurt,
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finansijiska pomoć neće pomoći, nasuprot možda će pogoršati stanje,
01:30
it might exacerbate corruption, dependence, etc.?
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možda će pogoršati korupciju, zavisnost, itd.?
01:34
Or maybe you turn to the past.
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Ili se možda okrenemo prošlosti.
01:36
After all, we have spent billions of dollars on aid.
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Na kraju krajeva, mi smo potrošili milijarde dolara na finansijisku pomoć.
01:39
Maybe you look at the past and see.
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Možda pogledamo u prošlost i vidimo
01:41
Has it done any good?
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da li je postignuto išta dobro.
01:43
And, sadly, we don't know.
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Ali, nažalost, ne znamo.
01:45
And worst of all, we will never know.
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I najgore od svega, nikada nećemo znati.
01:49
And the reason is that -- take Africa for example.
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A razlog je - uzmimo Afriku kao primjer -
01:51
Africans have already got a lot of aid.
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Afrikanci su dobili mnogo finansijiske pomoći.
01:53
These are the blue bars.
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To su plavi stupci na grafikonu
01:55
And the GDP in Africa is not making much progress.
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I BDP u Africi nije mnogo napredovao.
01:58
Okay, fine. How do you know what
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Ok, uredu. Kako da znamo
02:00
would have happened without the aid?
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šta bi se desilo bez finansijiske pomoći?
02:02
Maybe it would have been much worse,
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Možda bi bilo mnogo gore.
02:05
or maybe it would have been better.
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Ili bi možda bili bolje.
02:07
We have no idea. We don't know what the counterfactual is.
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Mi ne znamo. Mi nemamo kontračinjenične podatke.
02:10
There's only one Africa.
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U svijetu postoji samo jedna Afrika.
02:12
So what do you do?
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Dakle, šta da radimo?
02:14
To give the aid, and hope and pray that something comes out of it?
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Da damo finansijisku pomoć i da se molimo da se nešto dobro desi?
02:18
Or do you focus on your everyday life
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Ili da se fokusiramo na naš svakodnevni život
02:21
and let the earthquake every eight days
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i dozvolimo da se zemljotres svakih osam dana
02:23
continue to happen?
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i dalje dešava?
02:25
The thing is, if we don't know
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Stvar je u tome, da ako ne znamo
02:27
whether we are doing any good,
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da li radimo ikakvo dobro,
02:29
we are not any better
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mi nismo ništa bolji
02:31
than the Medieval doctors and their leeches.
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od doktora Srednjeg Vijeka, i njihovih pijavica.
02:34
Sometimes the patient gets better, sometimes the patient dies.
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Ponekad pacijent ozdravi, ponekad taj pacijent umre.
02:37
Is it the leeches? Is it something else?
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Zbog pijavica? Zbog nečega drugoga?
02:40
We don't know.
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Mi ne znamo.
02:42
So here are some other questions.
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Dakle, evo par drugih pitanja.
02:44
They're smaller questions,
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To su manja pitanja,
02:46
but they are not that small.
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ali nisu baš tako mala pitanja.
02:48
Immunization, that's the cheapest way
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Imunizacija, to je najjeftiniji način
02:51
to save a child's life.
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da se spasi život djeteta.
02:53
And the world has spent a lot of money on it:
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I svijet je potrošio dosta novaca na to.
02:55
The GAVI and the Gates Foundations
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GAVI i Gejts fondacije
02:57
are each pledging a lot of money towards it,
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obje zalažu mnogo novca za imunizaciju.
02:59
and developing countries themselves have been doing a lot of effort.
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Čak i zemlje u razvoju same ulažu dosta truda.
03:02
And yet, every year
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I opet, svake godine,
03:04
at least 25 million children
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najmanje 25 miliona djece
03:06
do not get the immunization they should get.
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ne dobija potrebnu imunizaciju.
03:09
So this is what you call a "last mile problem."
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Ovo je šta mi zovemo "problem posljednje milje."
03:12
The technology is there,
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Tehnologija je tu.
03:14
the infrastructure is there,
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Infrakstruktura je tu.
03:16
and yet it doesn't happen.
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I opet, ništa ne uspijeva.
03:18
So you have your million.
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Dakle imamo milion.
03:20
How do you use your million
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Kako koristiti taj milion
03:22
to solve this last mile problem?
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da riješimo problem posljednje milje?
03:24
And here's another question:
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I evo još jedno pitanje:
03:26
Malaria. Malaria kills almost
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Malarija. Malarije ubija skoro
03:29
900,000 people every year,
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900,000 ljudi svake godine,
03:32
most of them in Sub-Saharan Africa,
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uglavnom ljudi u sub-saharskoj Africi,
03:34
most of them under five.
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većina mlađih od pet godina.
03:36
In fact, that is the leading cause of under-five mortality.
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U stvari to je vodeći razlog smrtnosti za mlađe od pet godina.
03:39
We already know how to kill malaria,
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Mi već znamo kako ubiti malariju,
03:42
but some people come to you and say,
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ali neki ljudi dođu i kažu.
03:44
"You have your millions. How about bed nets?"
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"Imaš milione. Šta mislite o mrežama za krevete?"
03:47
Bed nets are very cheap.
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Mreže za krevet su vrlo jeftine.
03:49
For 10 dollars, you can manufacture and ship
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Za 10 dolara, možemo proizvesti i poslati
03:52
an insecticide treated bed net
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insekticidom tretirane mreže za krevete,
03:54
and you can teach someone to use them.
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i možemo nekome objasniti kako da ih koriste.
03:56
And, not only do they protect the people who sleep under them,
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I, ne samo da one štite ljude koji spavaju pod njima,
03:59
but they have these great contagion benefits.
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nego imaju i odlične koristi protiv daljne zaraze.
04:01
If half of a community sleeps under a net,
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Ako pola zajednice spava pod mrežama,
04:04
the other half also benefits
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druga polovina ima koristi od toga
04:06
because the contagion of the disease spread.
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jer se spriječava daljnje širenje bolesti.
04:09
And yet, only a quarter of kids at risk sleep under a net.
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I opet, samo četvrtina djece pod rizikom spava pod mrežom.
04:12
Societies should be willing to go out
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Društva bi trebala biti voljna da se potrude
04:14
and subsidize the net, give them for free,
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i da sponzorišu mreže, da ih daju besplatno,
04:16
or, for that matter, pay people to use them
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ili, u tu svrhu, platiti ljudima da ih koriste
04:18
because of those contagion benefits.
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zbog zaustavljanja daljnjeg širenja bolesti.
04:20
"Not so fast," say other people.
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"Ne tako brzo," kažu drugi ljudi.
04:22
"If you give the nets for free,
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"Ako damo mreže besplatno,
04:24
people are not going to value them.
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ljudi ih neće cijeniti.
04:26
They're not going to use them,
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Neće ih koristiti,
04:28
or at least they're not going to use them as bed nets,
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ili ih bar neće koristiti kao mreže za krevet,
04:30
maybe as fishing nets."
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možda za ribarenje."
04:32
So, what do you do?
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Dakle, šta da radimo?
04:34
Do you give the nets for free to maximize coverage,
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Da damo mreže besplatno, da maksimiziramo pokrivenost?
04:36
or do you make people pay
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Ili da tražimo da ljudi plate
04:38
in order to make sure that they really value them?
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kako bismo bili sigurni da ljudi razumiju vrijednost tih mreža?
04:40
How do you know?
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Kako da znamo?
04:42
And a third question: Education.
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I treće pitanje: obrazovanje.
04:44
Maybe that's the solution, maybe we should send kids to school.
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Možda je to riješenje. Možda bi trebali poslati djecu u školu.
04:46
But how do you do that?
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Kako da to uradimo?
04:48
Do you hire teachers? Do you build more schools?
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Da li da uposlimo profesore? Da izgradimo nove škole?
04:50
Do you provide school lunch?
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Da li da osiguramo ručak u školi?
04:52
How do you know?
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Kako da znamo?
04:54
So here is the thing.
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Dakle, ovako stvari stoje.
04:56
I cannot answer the big question,
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Ja ne mogu odgovoriti na veliko pitanje,
04:58
whether aid did any good or not.
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da li je finansijiska pomoć uspješna ili ne,
05:00
But these three questions, I can answer them.
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ali ova tri pitanja, ja mogu odgovoriti.
05:04
It's not the Middle Ages anymore,
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Ovo nije Srednji vijek više.
05:06
it's the 21st century.
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Ovo je 21. vijek.
05:08
And in the 20th century,
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I u 20. vijeku,
05:10
randomized, controlled trials
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randomizirani, kontrolirani pokušaji
05:12
have revolutionized medicine
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su revolucionirali medicinu
05:14
by allowing us to distinguish
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dozvolivši nam da razlikujemo
05:16
between drugs that work
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lijekove koji su uspješni
05:18
and drugs that don't work.
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i lijekove koji nisu.
05:20
And you can do the same
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I možemo uraditi istu stvar
05:22
randomized, controlled trial for social policy.
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randomizirani, kontrolirani pokušaj za društvenu politiku.
05:25
You can put social innovation to the same
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Možemo i za društvenu inovaciju koristiti iste
05:27
rigorous, scientific tests
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rigorozne, naučne testove
05:29
that we use for drugs.
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koje koristimo za lijekove.
05:31
And in this way, you can take the guesswork
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I na taj način, možemo izbaciti nagađanje
05:34
out of policy-making
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iz političkih odlučivanja
05:36
by knowing what works,
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ako znamo šta radi,
05:38
what doesn't work and why.
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i šta ne radi, te zašto.
05:40
And I'll give you some examples with those three questions.
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I dati ću vam par primjera za ta tri pitanja.
05:44
So I start with immunization.
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Dakle ja krenem sa imunizacijom.
05:46
Here's Udaipur District, Rajasthan. Beautiful.
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Ovo je Udaipur distrikt, Rajasthan, prekrasno.
05:49
Well, when I started working there,
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Kada sam ja krenula tamo raditi,
05:51
about one percent of children
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oko jedan posto djece
05:53
were fully immunized.
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je bilo u potpunosti imunizirano.
05:55
That's bad, but there are places like that.
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To je loše, ali takva mjesta postoje.
05:58
Now, it's not because the vaccines are not there --
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Znaci, to nije zbog toga što vakcine nisu tu.
06:00
they are there and they are free --
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Vakcine su tu, i besplatne su.
06:02
and it's not because parents do not care about their kids.
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I nije zato što roditelji ne mare za svojom djecom.
06:05
The same child that is not immunized against measles,
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Isto dijete koje nije imunizirano protiv ospica,
06:08
if they do get measles, parents will spend
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ako dobije ospice, roditelji će platiti
06:10
thousands of rupees to help them.
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hiljade rupija da mu pomognu.
06:12
So you get these empty village subcenters
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Tako da dobijemo ove prazne seoske polu centre
06:14
and crowded hospitals.
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i prepune bolnice.
06:16
So what is the problem?
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Šta je problem u svemu?
06:18
Well, part of the problem, surely, is people do not fully understand.
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Pa, dio problema je, vjerovatno, da ljudi ne razumiju sve to u potpunosti.
06:21
After all, in this country as well,
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Na kraju krajeva, u ovoj zemlji također,
06:23
all sorts of myths and misconceptions
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mnoge vrste mitova i zabluda
06:25
go around immunization.
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postoje oko imuniziranja.
06:28
So if that's the case, that's difficult,
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Tako da ako je to slučaj, to je problematično
06:30
because persuasion is really difficult.
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jer je nagovaranje vrlo teško.
06:33
But maybe there is another problem as well.
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Ali možda postoji drugi problem također.
06:35
It's going from intention to action.
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To je prelazak sa namjere na djelovanje.
06:38
Imagine you are a mother
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Zamislite da ste vi majka
06:40
in Udaipur District, Rajasthan.
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u Udaipur distriktu, Rajasthanu.
06:42
You have to walk a few kilometers to get your kids immunized.
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Morate hodati par kilometara da biste imunizirali svoju djecu.
06:45
And maybe when you get there, what you find is this:
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I možda kada dođete tamo, šta nađete je ovo.
06:47
The subcenter is closed. Ao you have to come back,
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Centar za imunizaciju je zatvoren, morate doći ponovo.
06:49
and you are so busy and you have so many other things to do,
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I vi ste zauzeti, imate mnogo drugih stvari za uraditi,
06:52
you will always tend to postpone and postpone,
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Uvijek ćete polušati da odgodite i odgodite,
06:54
and eventually it gets too late.
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i na kraju će biti prekasno.
06:56
Well, if that's the problem, then that's much easier.
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Dakle, ako je to problem, to je mnogo lakše
06:59
Because A, we can make it easy,
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jer, A, možemo proces pojednostaviti,
07:02
and B, we can maybe
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i, B, možda možemo
07:04
give people a reason to act today,
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dati ljudima razlog da djeluju danas,
07:06
rather than wait till tomorrow.
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radije nego sutra.
07:08
So these are simple ideas, but we didn't know.
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Ovo su neke jednostavne ideje, ali nismo znali.
07:10
So let's try them.
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Pokušajmo ih onda.
07:12
So what we did is we did a randomized, controlled trial
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Znaći, šta smo uradili su randomizirani kontrolirani pokušaji
07:15
in 134 villages in Udaipur Districts.
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u 134 sela u Udaipur distriktima.
07:17
So the blue dots
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Plave tačke
07:19
are selected randomly.
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su nasumično odabrane.
07:21
We made it easy -- I'll tell you how in a moment.
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Pojednostavili smo proces. Objasniti ću to za koji moment.
07:24
In the red dots, we made it easy
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U crvenim tačkama, pojednostavili smo proces
07:26
and gave people a reason to act now.
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i dali ljudima razlog da djeluju sada.
07:28
The white dots are comparisons, nothing changed.
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Bijele tačke su usporedbe, ništa se nije mijenjalo.
07:31
So we make it easy by organizing
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Znaći pojednostavili smo to organizirajući
07:33
this monthly camp where people can
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mjesećni kamp gdje ljudi mogu
07:35
get their kids immunized.
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dovesti djecu na imunizaciju.
07:37
And then you make it easy
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A onda smo to pojednostavili
07:39
and give a reason to act now
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i dali im razlog da djeluju sada
07:41
by adding a kilo of lentils for each immunization.
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dodajući kilogram leća za svaku imunizaciju.
07:44
Now, a kilo of lentils is tiny.
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Znamo da je kilogram leća malen.
07:47
It's never going to convince anybody
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Nikada neće nikoga nagovoriti
07:49
to do something that they don't want to do.
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da uradi nešto što ne želi ra uradi.
07:51
On the other hand, if your problem is you tend to postpone,
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U drugu ruku, ako je tvoj problem isključivo odgađanje,
07:54
then it might give you a reason to act today
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onda ti možda da razlog da djeluješ danas
07:56
rather than later.
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radije nego kasnije.
07:58
So what do we find?
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Šta smo otkrili?
08:00
Well, beforehand, everything is the same.
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Dakle, prije, sve je bilo isto.
08:02
That's the beauty of randomization.
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To je ljepota randomizacije.
08:04
Afterwards,
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Kasnije,
08:06
the camp -- just having the camp --
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kamp, samo postojanje kampa,
08:08
increases immunization from six percent to 17 percent.
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povećalo je imunizaciju sa šest posto na 17 posto.
08:10
That's full immunization.
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To je puna imunizacija.
08:12
That's not bad, that's a good improvement.
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To nije loše. To je dobar napredak.
08:14
Add the lentils and you reach to 38 percent.
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Dodajući leća i stižemp do 38 posto.
08:17
So here you've got your answer.
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Dakle ovdje imate vaš odgovor.
08:19
Make it easy and give a kilo of lentils,
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Pojednostavite proces, i dajte kilogram leća,
08:21
you multiply immunization rate by six.
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i umnožit ćete imunizaciju šest puta.
08:24
Now, you might say, "Well, but it's not sustainable.
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Sada, možda ćete reći. "Da, ali to nije održivo.
08:26
We cannot keep giving lentils to people."
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Ne možemo konstantno davati leća ljudima."
08:28
Well, it turns out it's wrong economics,
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Pa, to je pogrešna računica
08:30
because it is cheaper
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jer je jeftinije
08:32
to give lentils than not to give them.
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davati leća nego ne davati ih.
08:34
Since you have to pay for the nurse anyway,
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Jer morate platiti medicinsku sestru ionako,
08:36
the cost per immunization
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trošak po imunizaciji
08:38
ends up being cheaper if you give incentives than if you don't.
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na kraju ispada niži ako damo inicijative nego ako ih ne damo.
08:42
How about bed nets?
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A šta je sa mrežama za krevete?
08:44
Should you give them for free, or should you ask people to pay for them?
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Da ih damo besplatno, ili da pitamo ljude da plate za njih?
08:47
So the answer hinges
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Dakle odgovor ovisi
08:49
on the answer to three simple questions.
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od odgovora na tri jednostavna pitanja.
08:51
One is: If people must pay for a bed net,
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Prvo je: Ako ljudi moraju platiti za mrežu,
08:54
are they going to purchase them?
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da li će je kupiti?
08:56
The second one is:
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Drugo pitanje je:
08:58
If I give bed nets for free,
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Ako im damo mreže besplatno,
09:00
are people going to use them?
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da li će ih koristiti?
09:02
And the third one is:
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I treće pitanje je:
09:04
Do free bed nets discourage future purchase?
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Da li besplatne mreže obeshrabruju kupovinu u budućnosti?
09:06
The third one is important
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Treće pitanje je vrlo bitno
09:08
because if we think people get used to handouts,
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jer, ako pomislimo da će se ljudi naviknuti na izdatke,
09:11
it might destroy markets to distribute free bed nets.
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možda uspijemo uništiti market za distribuciju mreža za krevet.
09:14
Now this is a debate that has generated
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Ovo je debata koja je proizvela
09:16
a lot of emotion and angry rhetoric.
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mnogo emocija i ljutih retorika.
09:19
It's more ideological than practical,
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Više je ideološka nego praktičma.
09:21
but it turns out it's an easy question.
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ali ispadne da je jednostavno pitanje.
09:23
We can know the answer to this question.
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Možemo znati odgovor na to pitanje.
09:25
We can just run an experiment.
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Možemo samo pokušati eksperiment.
09:27
And many experiments have been run, and they all have the same results,
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I mnoge eksperimente, i svi će imati iste rezultate,
09:29
so I'm just going to talk to you about one.
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tako da ću ja govoriti samo o jednom.
09:32
And this one that was in Kenya,
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I taj je bio u Keniji,
09:34
they went around and distributed to people
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otišli su okolo i podijelili ljudima
09:36
vouchers, discount vouchers.
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bonove, bonove za popust.
09:38
So people with their voucher
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Tako da ljudi sa svojim bonovima
09:40
could get the bed net in the local pharmacy.
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mogu dobiti mrežu za krevet u lokalnim farmacijama.
09:42
And some people get 100 percent discount,
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I neki ljudi dobiju 100 % sniženje,
09:45
and some people get 20 percent discounts,
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a neki drugi 20 % sniženja,
09:47
and some people get 50 percent discount, etc.
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i neki drugi ljudi dobiju 50 % sniženja, itd.
09:50
And now we can see what happens.
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I sada možemo vidjeti šta se će se desiti.
09:52
So, how about the purchasing?
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Dakle, šta se dešava sa kupovinom?
09:54
Well, what you can see is that
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Ono što možemo zapaziti je
09:56
when people have to pay for their bed nets,
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da kada ljudi moraju platiti za mreže,
09:58
the coverage rate really falls down a lot.
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stopa pokrivenosti uveliko opadne.
10:01
So even with partial subsidy,
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Dakle i sa djelimičnim popustom --
10:03
three dollars is still not the full cost of a bed net,
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tri dolara nije puna cijena proizvodnje jedne mreže za krevet.
10:06
and now you only have 20 percent of the people with the bed nets,
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I sada imamo samo 20 posto ljudi sa tim mrežama za krevete,
10:08
you lose the health immunity, that's not great.
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gubimo zdravstveni imunitet, to nije dobro.
10:11
Second thing is, how about the use?
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Druga stvar je, šta se dešava sa korištenjem tih mreža?
10:13
Well, the good news is, people, if they have the bed nets,
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Pa, dobre vijesti su da ljudi ako imaju te mreže,
10:15
will use the bed nets regardless of how they got it.
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će ih koristiti be obzira na to kako su ih dobili.
10:18
If they get it for free, they use it.
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Ako su ih dobili besplatno, koriste ih.
10:20
If they have to pay for it, they use it.
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Ako su platili za njih, koriste ih.
10:22
How about the long term?
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Šta se dešava u dugoročnom planu?
10:24
In the long term,
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U budučnosti,
10:26
people who got the free bed nets,
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ljudi koji su dobili mreže besplatno,
10:28
one year later, were offered the option
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godinu poslije, su dobili ponudu
10:30
to purchase a bed net at two dollars.
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da kupe mrežu za krevet za dva dolara.
10:33
And people who got the free one
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I ljudi koji su dobili jednu besplatno
10:35
were actually more likely to purchase the second one
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su ustvari kupili drugu mrežu sa većom vjerovatnoćom
10:38
than people who didn't get a free one.
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nego ljudi koji nisu dobili prvu besplatno.
10:40
So people do not get used to handouts; they get used to nets.
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Dakle ljudi se ne naviknu na besplatne izdatke, nego na te mreže.
10:43
Maybe we need to give them a little bit more credit.
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Možda im moramo dati malo više kredibilnosti.
10:48
So, that's for bed nets. So you will think, "That's great.
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To je primjer mreža za krevet. A vi ćete pomisliti, "To je super.
10:50
You know how to immunize kids, you know how to give bed nets."
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Sada znamo kako imunizirati, znamo kako davati mreže za krevete."
10:53
But what politicians need is a range of options.
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Ali ono što političarima treba je niz mogućnosti.
10:56
They need to know: Out of all the things I could do,
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Oni moraju znati: Od svih stvari koje mogu uraditi,
10:59
what is the best way to achieve my goals?
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šta je najbolji način da postignem svoje ciljeve?
11:02
So suppose your goal is to get kids into school.
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Pa zamislite da je vaš cilj da podstaknete djecu da idu u školu.
11:05
There are so many things you could do. You could pay for uniforms,
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Postoje mnoge opcije koje možete uraditi. Možete platiti za uniforme,
11:08
you could eliminate fees, you could build latrines,
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uklonuti potrebne naknade, izgraditi komunalne toalete,
11:10
you could give girls sanitary pads, etc., etc.
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možete izgraditi higjenske uloške za djevojke, itd.. itd.
11:13
So what's the best?
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Šta je najbolja opcija?
11:15
Well, at some level, we think
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Pa, na nekom nivou, mi vjerujemo
11:17
all of these things should work.
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da bi svaka od ovih trebala biti uspješna.
11:19
So, is that sufficient? If we think they should work intuitively,
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Pa, da li je to dovoljno, da mi intuitivno mislimo da bi opcije trebale raditi,
11:21
should we go for them?
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da ih pokušamo?
11:23
Well, in business, that's certainly not the way we would go about it.
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U biznisu, to definitivno nije način na koji bismo prišli ovom problemu.
11:27
Consider for example
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Razmotrimo na primjer
11:29
transporting goods.
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prevoz sredstava.
11:31
Before the canals were invented
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Prije nego su kanali izumljeni
11:33
in Britain before the Industrial Revolution,
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u Britaniji prije industrijiske revolucije,
11:36
goods used to go on horse carts.
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sredstva su prenošena konjskim zapregama.
11:38
And then canals were built,
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Onda su kanali izgrađeni,
11:40
and with the same horseman and the same horse,
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I sa tim istim jahačem i tim istim konjem,
11:43
you could carry ten times as much cargo.
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možemo prevoziti deset puta više tereta.
11:46
So should they have continued
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Dakle, da li su trebali nastaviti
11:48
to carry the goods on the horse carts, on the ground,
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da prevoze teret na tim konjskim zapregama, na terenu,
11:51
that they would eventually get there?
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koji bi na kraju stigli tu?
11:53
Well, if that had been the case,
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Pa, ako je to slučaj,
11:55
there would have been no Industrial Revolution.
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onda ne bi bilo industrijiske revolucije.
11:57
So why shouldn't we do the same with social policy?
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Zašto onda ne uradimo isto sa društvenom politikom?
12:00
In technology, we spend so much time
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Sa tehnologijom, mi provodimo toliko vremena
12:02
experimenting, fine-tuning,
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eksperimentirajući, ugađanjem,
12:04
getting the absolute cheapest way to do something,
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pronalazeći apsolutno najjeftinije načine da nešto uradimo,
12:06
so why aren't we doing that with social policy?
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dakle, zašto ne radimo istu stvar sa socijalnom politikom?
12:09
Well, with experiments, what you can do
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Pa, sa eksperimentima, šta možemo uraditi
12:11
is answer a simple question.
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je da odgovorimo na jednostavno pitanje.
12:13
Suppose you have 100 dollars to spend
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Zamislite da imamo 100 dolara da potrošimo
12:15
on various interventions.
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na različite intervencije.
12:17
How many extra years of education
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Koliko daljnjih godina obrazovanja
12:19
do you get for your hundred dollars?
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možemo ostvariti sa stotinu dolara?
12:21
Now I'm going to show you
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Sada ću da vam pokažem
12:23
what we get with various education interventions.
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šta dobijamo sa različitim obrazovnim intervencijama.
12:27
So the first ones are if you want the usual suspects,
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Dakle prvi su takozvani uobičajeni slučajevi,
12:29
hire teachers, school meals,
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uposliti nastavnike, jela u školi,
12:31
school uniforms, scholarships.
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školske uniforme, školarine.
12:33
And that's not bad. For your hundred dollars,
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I to nije loše. Za stotinu dolara
12:35
you get between one and three extra years of education.
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dobijemo između jedne i tri dodatne godine obrazovanja.
12:39
Things that don't work so well is bribing parents,
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Stvari koje ne rade tako dobro su potplaćivanje roditelja,
12:41
just because so many kids are already going to school
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jer mnogo učenika već ide u školu
12:44
that you end up spending a lot of money.
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tako da na kraju potrošimo dosta novca.
12:46
And here are the most surprising results.
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A ovo su najiznenađujući rezultati.
12:49
Tell people the benefits of education,
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Recite ljudima šta su predonsti obrazovanja.
12:52
that's very cheap to do.
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To je vrlo jeftino.
12:54
So for every hundred dollars you spend doing that,
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Tako da za svakih stotinu dolara potrošenih na to,
12:57
you get 40 extra years of education.
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dobijemo 40 dodatnih godina obrazovanja.
13:00
And, in places where there are worms,
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I u mjestima gdje imamo crve,
13:02
intestinal worms,
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crijevne crve,
13:04
cure the kids of their worms.
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izliječite djeci te crve.
13:06
And for every hundred dollars,
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I za svakih stotinu dolara,
13:08
you get almost 30 extra years of education.
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dobijemo 30 dodatnih godina obrazovanja.
13:11
So this is not your intuition,
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Dakle ovo nije vaša intuicija.
13:13
this is not what people would have gone for,
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To nisu stvari koje bi ljudi uradili,
13:15
and yet, these are the programs that work.
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i opet, to su programi koji su uspješni.
13:18
We need that kind of information, we need more of it,
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Nama su potrebne takve informacije. Treba nam što više toga.
13:20
and then we need to guide policy.
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I onda trebamo da vodimo politiku.
13:24
So now, I started from the big problem, and I couldn't answer it.
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Sada, počela sam od velikog problema, i nisam ga mogla odgovoriti.
13:27
And I cut it into smaller questions,
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I podjielila sam ga u manja pitanja,
13:30
and I have the answer to these smaller questions.
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a imam odgovore na manja pitanja.
13:32
And they are good, scientific, robust answers.
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I to su dobri, naučni, snažni odgovori.
13:36
So let's go back to Haiti for a moment.
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Vratimo se sada u Haiti na momenat.
13:39
In Haiti, about 200,000 people died --
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U Haitiju, oko 200 000 ljudi je umrlo.
13:43
actually, a bit more by the latest estimate.
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Ustvari, nešto više od posljednjeg mjerenja.
13:45
And the response of the world was great:
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I odgovor svijeta je bio odličan.
13:47
Two billion dollars got pledged just last month,
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Dvije milijarde dolara su obećane samo zadnji mjesec.
13:51
so that's about 10,000 dollars per death.
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To je oko 10 000 dolara po smrti.
13:53
That doesn't sound like that much when you think about it.
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To ne zvuči tako puno ako pomislite o tome.
13:56
But if we were willing to spend 10,000 dollars
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Ali ako smo spremni potrošiti 10 000 dolara
13:59
for every child under five who dies,
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za svako dijete ispod 5 godina koje umre,
14:02
that would be 90 billion per year
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to bi bilo 90 milijardi godišnje
14:05
just for that problem.
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samo za taj problem.
14:07
And yet it doesn't happen.
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Ali to se ne dešava.
14:09
So, why is that?
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Zašto?
14:11
Well, I think what part of the problem is that,
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Ja mislim da dio problema je da,
14:13
in Haiti, although the problem is huge,
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u Haitiju, iako je problem ogroman,
14:15
somehow we understand it, it's localized.
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nekako ga razumijemo, lokaliziran je.
14:17
You give your money to Doctors Without Borders,
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Ako damo novac Doktorima Bez Granica,
14:19
you give your money to Partners In Health,
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damo novac Partnerima u Zdravlju,
14:21
and they'll send in the doctors, and they'll send in the lumber,
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i oni ce ga potrošiti da šalju doktore, drvo,
14:24
and they'll helicopter things out and in.
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slati će stvari tamo i nazad.
14:27
And the problem of poverty is not like that.
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Problem sa siromaštvom nije takav.
14:29
So, first, it's mostly invisible;
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Kao prvo, uglavnom je nevidljiv.
14:31
second, it's huge;
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Drugo, prevelik je.
14:33
and third, we don't know whether we are doing the right thing.
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I treće, ne znamo kako da ga riješimo efikasno.
14:36
There's no silver bullet.
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Ne postoji srebreni metak.
14:38
You cannot helicopter people out of poverty.
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Ne možemo poslati helikoptere da spasimo siromaštvo.
14:40
And that's very frustrating.
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I to je vrlo uznemirijuće.
14:42
But look what we just did today.
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Ali pogledajmo šta smo upravo uradili danas.
14:45
I gave you three simple answers to three questions:
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Dala sam vam tri jednostavna odgovora na tri pitanja.
14:48
Give lentils to immunize people,
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Dajte leća da imuniziramo ljude,
14:50
provide free bed nets, deworm children.
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dajte besplatne mreže za krevete, i izliječite crve djeci.
14:52
With immunization or bed nets,
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Sa imunizacijom ili mrežama,
14:54
you can save a life for 300 dollars per life saved.
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možemo spasiti život za 300 dolara.
14:57
With deworming, you can get
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Sa liječenjem crva, možemo
14:59
an extra year of education for three dollars.
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dobiti dodatne godine obrazovanja.
15:02
So we cannot eradicate poverty just yet,
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Dakle ne možemo izliječiti sirmoaštvo još uvijek,
15:05
but we can get started.
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ali možemo krenuti.
15:07
And maybe we can get started small
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I možda je to mali početak
15:09
with things that we know are effective.
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sa stvarima za koje znamo da su efikasne.
15:12
Here's an example of how this can be powerful.
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Ovo je primjer kako ovo može biti efikasno.
15:14
Deworming.
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Liječenje crva.
15:16
Worms have a little bit of a problem grabbing the headlines.
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Crvi imaju mali problem da se nađu na početnim vijestima.
15:18
They are not beautiful and don't kill anybody.
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Nisu lijepi, i ne ubijaju nikoga.
15:21
And yet, when the young global leader in Davos
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Ali ipak, kada je mladi globalni vođa u Davosu
15:23
showed the numbers I gave you,
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pokazao statistike koje ste vidjeli,
15:25
they started Deworm the World.
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počeli su "Deworm the World".
15:27
And thanks to Deworm the World,
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I hvala "Deworm the World",
15:29
and the effort of many country governments and foundations,
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i trudu mnogih zemalja i fondacija,
15:31
20 million school-aged children got dewormed in 2009.
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20 miliona školskog uzrasta dijece je izliječeno u 2009.
15:34
So this evidence is powerful.
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Dokazi su uspješni.
15:36
It can prompt action.
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Može pokrenuti akciju.
15:38
So we should get started now.
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Pa počnimo sada.
15:40
It's not going to be easy.
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Sada, neće biti lahko.
15:42
It's a very slow process.
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To je spor proces.
15:44
You have to keep experimenting, and sometimes ideology
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Moramo eksperimentisati, i nekada se ideologije
15:46
has to be trumped by practicality.
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moraju skovati na osnovi praktičnosti.
15:48
And sometimes what works somewhere doesn't work elsewhere.
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I nekada nešto što radi negdje, ne radi svuda.
15:51
So it's a slow process,
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Dakle, spor proces,
15:53
but there is no other way.
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ali ne postoji drugi način.
15:55
These economics I'm proposing,
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Ova eknomija koju predlažem,
15:57
it's like 20th century medicine.
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je kao medicina 20. vijeka.
15:59
It's a slow, deliberative process
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Spor, detaljan proces
16:01
of discovery.
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otkrića.
16:03
There is no miracle cure,
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Ne postoje medicinska čuda,
16:05
but modern medicine is saving
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ali moderna medicina spašava
16:07
millions of lives every year,
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milione života svake godine,
16:09
and we can do the same thing.
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i mi možemo uraditi istu stvar.
16:13
And now, maybe, we can go back to the bigger question
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I sada, možda se možemo vratiti velikom pitanju
16:16
that I started with at the beginning.
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koje smo postavili na početku.
16:19
I cannot tell you
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Ne mogu vam reći
16:21
whether the aid we have spent in the past has made a difference,
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da li je finansijiska pomoć potrošena u prošlosti napravila promjene,
16:24
but can we come back here in 30 years
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ali se možemo vratiti ovdje za 30 godina
16:27
and say, "What we have done,
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i reći, "Šta smo uradili,
16:30
it really prompted a change for the better."
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je ustvari napravilo promjenu ka boljem."
16:33
I believe we can and I hope we will.
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Vjerujem da možemo, i nadam se da hoćemo.
16:35
Thank you.
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Hvala vam.
16:37
(Applause)
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(Aplauz)
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