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Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.06,0:00:03.46,Default,,0000,0000,0000,,- [Yan Chen] It's good that we have\Nan army of enthusiasts
Dialogue: 0,0:00:03.46,0:00:05.39,Default,,0000,0000,0000,,writing Wikipedia articles,
Dialogue: 0,0:00:05.96,0:00:10.87,Default,,0000,0000,0000,,but sometimes when it concerns \Na disease that I might have,
Dialogue: 0,0:00:10.88,0:00:13.49,Default,,0000,0000,0000,,I really want the experts' input.
Dialogue: 0,0:00:13.79,0:00:15.57,Default,,0000,0000,0000,,♪ [music] ♪
Dialogue: 0,0:00:26.65,0:00:30.24,Default,,0000,0000,0000,,Wikipedia is one of the most \Nimportant references
Dialogue: 0,0:00:30.24,0:00:31.93,Default,,0000,0000,0000,,for the general public
Dialogue: 0,0:00:31.99,0:00:36.82,Default,,0000,0000,0000,,It's actually one of the top five\Nmost visited websites in the world.
Dialogue: 0,0:00:37.05,0:00:40.90,Default,,0000,0000,0000,,Everyone reads Wikipedia articles,\Nbut sometimes you spot an error
Dialogue: 0,0:00:40.90,0:00:44.10,Default,,0000,0000,0000,,or you say, \N"Well, this is not really correct."
Dialogue: 0,0:00:44.10,0:00:45.42,Default,,0000,0000,0000,,But you move on
Dialogue: 0,0:00:45.42,0:00:48.22,Default,,0000,0000,0000,,and say, "Someone else might fix it."
Dialogue: 0,0:00:51.11,0:00:53.69,Default,,0000,0000,0000,,That's called the "free rider problem."
Dialogue: 0,0:00:55.13,0:00:58.70,Default,,0000,0000,0000,,The success of Wikipedia \Nhas been really surprising
Dialogue: 0,0:00:58.70,0:01:03.07,Default,,0000,0000,0000,,for economists because it relies \Npurely on volunteer labor.
Dialogue: 0,0:01:03.44,0:01:07.97,Default,,0000,0000,0000,,The medical profession has found\Nthat patients tend to bring printouts
Dialogue: 0,0:01:07.97,0:01:10.78,Default,,0000,0000,0000,,of Wikipedia articles \Nto their doctor's office.
Dialogue: 0,0:01:11.52,0:01:14.22,Default,,0000,0000,0000,,Some of these articles \Nare of low quality
Dialogue: 0,0:01:14.22,0:01:16.53,Default,,0000,0000,0000,,because they were not written by experts.
Dialogue: 0,0:01:16.53,0:01:21.41,Default,,0000,0000,0000,,We're trying to figure out \Nwhat are the some of the motivators
Dialogue: 0,0:01:21.41,0:01:24.80,Default,,0000,0000,0000,,to get experts to contribute \Nto high quality content.
Dialogue: 0,0:01:25.06,0:01:28.83,Default,,0000,0000,0000,,So we decided to do a field experiment\Nto tease out the causalities,
Dialogue: 0,0:01:28.83,0:01:32.33,Default,,0000,0000,0000,,to figure out what motivates people\Nto contribute to Wikipedia,
Dialogue: 0,0:01:32.33,0:01:34.93,Default,,0000,0000,0000,,whether it's social impact \Nor private benefit
Dialogue: 0,0:01:34.93,0:01:39.08,Default,,0000,0000,0000,,or public acknowledgement,\Nor a combination of these factors.
Dialogue: 0,0:01:42.29,0:01:44.60,Default,,0000,0000,0000,,So in this study,\Nin this field experiment,
Dialogue: 0,0:01:44.60,0:01:47.97,Default,,0000,0000,0000,,we contacted about 4,000\Nacademic economists.
Dialogue: 0,0:01:47.97,0:01:49.44,Default,,0000,0000,0000,,We have a generic message
Dialogue: 0,0:01:49.44,0:01:52.80,Default,,0000,0000,0000,,which says Wikipedia \Nis a very valuable public good,
Dialogue: 0,0:01:52.80,0:01:57.62,Default,,0000,0000,0000,,and yet lots of the articles \Nare inaccurate or not up to date.
Dialogue: 0,0:01:57.62,0:02:01.09,Default,,0000,0000,0000,,Would you spend \N10 to 15 minutes commenting
Dialogue: 0,0:02:01.09,0:02:02.87,Default,,0000,0000,0000,,on these Wikipedia articles?
Dialogue: 0,0:02:02.87,0:02:06.20,Default,,0000,0000,0000,,Then we vary the paragraphs \Ndepending on whether
Dialogue: 0,0:02:06.20,0:02:08.32,Default,,0000,0000,0000,,they're in the treatment \Nor the control group.
Dialogue: 0,0:02:08.86,0:02:12.06,Default,,0000,0000,0000,,In the control group, \Nwe don't mention that the articles
Dialogue: 0,0:02:12.06,0:02:13.88,Default,,0000,0000,0000,,might cite your research.
Dialogue: 0,0:02:14.84,0:02:19.13,Default,,0000,0000,0000,,And in the private benefit condition \Nwe say they might cite your research,
Dialogue: 0,0:02:19.13,0:02:21.96,Default,,0000,0000,0000,,and we have another condition\Nwhich says, "We will publicly
Dialogue: 0,0:02:21.96,0:02:24.61,Default,,0000,0000,0000,,acknowledge your contributions."
Dialogue: 0,0:02:27.15,0:02:30.71,Default,,0000,0000,0000,,Simply asking the expert,\N"Would you contribute?"
Dialogue: 0,0:02:30.84,0:02:33.94,Default,,0000,0000,0000,,you get a pretty high response rate,
Dialogue: 0,0:02:34.03,0:02:37.66,Default,,0000,0000,0000,,which is about 45% of the people\Nsay, "Yes, I'm willing."
Dialogue: 0,0:02:37.66,0:02:41.51,Default,,0000,0000,0000,,When we sent out the links,\Nit turns out a third of the people
Dialogue: 0,0:02:41.51,0:02:45.53,Default,,0000,0000,0000,,actually contributed,\Nand we look at what are the features
Dialogue: 0,0:02:45.53,0:02:47.52,Default,,0000,0000,0000,,that predict contributions.
Dialogue: 0,0:02:48.01,0:02:53.45,Default,,0000,0000,0000,,It turns out that if the article is \Nreally well-matched
Dialogue: 0,0:02:53.72,0:02:55.87,Default,,0000,0000,0000,,to their research expertise,
Dialogue: 0,0:02:56.11,0:02:58.51,Default,,0000,0000,0000,,they're much more likely \Nto contribute,
Dialogue: 0,0:02:58.59,0:03:00.89,Default,,0000,0000,0000,,and they're contributing \Nhigher quality content.
Dialogue: 0,0:03:01.37,0:03:04.63,Default,,0000,0000,0000,,So good matching is really \Nimportant for volunteering.
Dialogue: 0,0:03:04.94,0:03:08.65,Default,,0000,0000,0000,,We also try to figure out\Nare people more motivated
Dialogue: 0,0:03:08.65,0:03:12.19,Default,,0000,0000,0000,,by the private benefits,\Nwhat they get out
Dialogue: 0,0:03:12.19,0:03:13.95,Default,,0000,0000,0000,,of the contributions.
Dialogue: 0,0:03:13.95,0:03:16.70,Default,,0000,0000,0000,,So we do that by telling \Nthe treatment group
Dialogue: 0,0:03:16.70,0:03:19.71,Default,,0000,0000,0000,,that we'll send you articles\Nto comment on
Dialogue: 0,0:03:19.71,0:03:21.58,Default,,0000,0000,0000,,that might reference your research.
Dialogue: 0,0:03:21.58,0:03:25.98,Default,,0000,0000,0000,,So it turns out that knowing\Nthat you might be cited
Dialogue: 0,0:03:25.98,0:03:30.89,Default,,0000,0000,0000,,increases the positive response rate\Nby about 13%.
Dialogue: 0,0:03:31.59,0:03:35.20,Default,,0000,0000,0000,,We also find \Nthat the public acknowledgement,
Dialogue: 0,0:03:35.20,0:03:37.96,Default,,0000,0000,0000,,saying that we will post \Nyour contributions
Dialogue: 0,0:03:37.96,0:03:40.92,Default,,0000,0000,0000,,and acknowledge \Nyour contributions publicly,
Dialogue: 0,0:03:40.92,0:03:44.79,Default,,0000,0000,0000,,people are more likely \Nto provide high quality content.
Dialogue: 0,0:03:46.01,0:03:50.10,Default,,0000,0000,0000,,And public impact --\Nyou know we vary the views
Dialogue: 0,0:03:50.10,0:03:52.86,Default,,0000,0000,0000,,of the Wikipedia articles\Nthat we sent.
Dialogue: 0,0:03:52.86,0:03:57.44,Default,,0000,0000,0000,,We either say on average,\Na Wikipedia will get 426 views.
Dialogue: 0,0:03:57.44,0:04:01.93,Default,,0000,0000,0000,,But we'll send articles which have \Nat least 1,000 views to you.
Dialogue: 0,0:04:01.93,0:04:07.62,Default,,0000,0000,0000,,People are most motivated\Nwhen the private benefit
Dialogue: 0,0:04:07.62,0:04:09.77,Default,,0000,0000,0000,,is combined with the social impact.
Dialogue: 0,0:04:09.77,0:04:12.74,Default,,0000,0000,0000,,The social impact \Nby itself actually doesn't
Dialogue: 0,0:04:12.74,0:04:14.71,Default,,0000,0000,0000,,quite have the same effect.
Dialogue: 0,0:04:18.92,0:04:21.79,Default,,0000,0000,0000,,I think if we replicate it \Nin other fields
Dialogue: 0,0:04:21.79,0:04:24.83,Default,,0000,0000,0000,,we'll have more confidence\Nthat private benefits,
Dialogue: 0,0:04:24.83,0:04:28.47,Default,,0000,0000,0000,,such as citation benefits,\Nwould get people interested
Dialogue: 0,0:04:28.47,0:04:31.22,Default,,0000,0000,0000,,in contributing, \Nand citation benefits
Dialogue: 0,0:04:31.22,0:04:33.10,Default,,0000,0000,0000,,in combination \Nwith social impact
Dialogue: 0,0:04:33.10,0:04:35.50,Default,,0000,0000,0000,,would have a larger effect.
Dialogue: 0,0:04:35.60,0:04:38.65,Default,,0000,0000,0000,,We need to push it \Nto other fields as well
Dialogue: 0,0:04:38.65,0:04:42.62,Default,,0000,0000,0000,,to see if they're robust\Nacross different communities.
Dialogue: 0,0:04:43.27,0:04:45.39,Default,,0000,0000,0000,,- [Narrator] Want to see more\Neconomists in the wild?
Dialogue: 0,0:04:45.39,0:04:46.76,Default,,0000,0000,0000,,Check out our playlist.
Dialogue: 0,0:04:46.76,0:04:47.84,Default,,0000,0000,0000,,Are you a teacher?
Dialogue: 0,0:04:47.84,0:04:49.88,Default,,0000,0000,0000,,Here's some related material \Nfor your classroom.
Dialogue: 0,0:04:49.88,0:04:51.22,Default,,0000,0000,0000,,Want to dive deeper?
Dialogue: 0,0:04:51.22,0:04:54.38,Default,,0000,0000,0000,,Wikipedia is what economists \Ncall a "public good."
Dialogue: 0,0:04:54.38,0:04:56.28,Default,,0000,0000,0000,,Learn more by watching this video.
Dialogue: 0,0:04:56.70,0:04:58.23,Default,,0000,0000,0000,,♪ [music] ♪