[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:00.90,0:00:02.76,Default,,0000,0000,0000,,♪ [music] ♪ Dialogue: 0,0:00:03.80,0:00:05.70,Default,,0000,0000,0000,,{\i1}- [Narrator] Welcome to \NNobel conversations.{\i0} Dialogue: 0,0:00:07.30,0:00:10.24,Default,,0000,0000,0000,,{\i1}In this episode, Josh Angrist \Nand Guido Imbens,{\i0} Dialogue: 0,0:00:10.24,0:00:12.00,Default,,0000,0000,0000,,{\i1}sit down with Isaiah Andrews{\i0} Dialogue: 0,0:00:12.00,0:00:14.30,Default,,0000,0000,0000,,{\i1}to discuss how the research\Nwas initially received{\i0} Dialogue: 0,0:00:14.90,0:00:17.09,Default,,0000,0000,0000,,{\i1}and how they responded \Nto criticism.{\i0} Dialogue: 0,0:00:18.70,0:00:21.54,Default,,0000,0000,0000,,At the time, did you feel like\Nyou are on to something, Dialogue: 0,0:00:21.54,0:00:25.15,Default,,0000,0000,0000,,you felt this was the beginning\Nof a whole line of work Dialogue: 0,0:00:25.15,0:00:27.20,Default,,0000,0000,0000,,that you felt like was going \Nto be important or...? Dialogue: 0,0:00:27.60,0:00:30.10,Default,,0000,0000,0000,,Not so much that it was\Na whole line of work, Dialogue: 0,0:00:30.10,0:00:32.42,Default,,0000,0000,0000,,but certainly I felt like, \N"Wow, this--" Dialogue: 0,0:00:32.42,0:00:35.04,Default,,0000,0000,0000,,- [Josh] We proved something \Nthat people didn't know before, Dialogue: 0,0:00:35.04,0:00:36.43,Default,,0000,0000,0000,,that it was worth knowing. Dialogue: 0,0:00:36.43,0:00:41.14,Default,,0000,0000,0000,,Yeah, going back compared to \Nmy job market papers having-- Dialogue: 0,0:00:41.60,0:00:45.56,Default,,0000,0000,0000,,I felt this was actually \Na very clear crisp result. Dialogue: 0,0:00:46.40,0:00:49.53,Default,,0000,0000,0000,,But there were definitely \Nwas mixed reception Dialogue: 0,0:00:49.53,0:00:52.42,Default,,0000,0000,0000,,and I don't think anybody \Nsaid that, Dialogue: 0,0:00:52.42,0:00:55.46,Default,,0000,0000,0000,,"Oh, wow, this is already,\Nsomething." Dialogue: 0,0:00:55.46,0:00:59.39,Default,,0000,0000,0000,,No, which is the nightmare scenario\Nfor a researcher Dialogue: 0,0:01:00.30,0:01:02.26,Default,,0000,0000,0000,,where you think you've \Ndiscovered something Dialogue: 0,0:01:02.28,0:01:04.46,Default,,0000,0000,0000,,and then somebody else says, \N"Oh, I knew that." Dialogue: 0,0:01:05.00,0:01:07.41,Default,,0000,0000,0000,,But there were definitely was \Na need to convince people Dialogue: 0,0:01:07.43,0:01:10.35,Default,,0000,0000,0000,,that this was worth knowing,\Nthat instrumental variables Dialogue: 0,0:01:10.37,0:01:12.71,Default,,0000,0000,0000,,estimates a causal effect \Nfor compliers. Dialogue: 0,0:01:13.20,0:01:16.18,Default,,0000,0000,0000,,Yeah, but even though it\Ntook a long time Dialogue: 0,0:01:16.18,0:01:19.35,Default,,0000,0000,0000,,to convince a bigger audience, Dialogue: 0,0:01:19.82,0:01:24.35,Default,,0000,0000,0000,,sometimes even fairly quickly, \Nthe reception was pretty good Dialogue: 0,0:01:24.80,0:01:26.64,Default,,0000,0000,0000,,among a small group of people. Dialogue: 0,0:01:27.20,0:01:31.30,Default,,0000,0000,0000,,Gary, clearly liked it a lot \Nfrom the beginning Dialogue: 0,0:01:31.80,0:01:35.64,Default,,0000,0000,0000,,and I remember, because at that point\NJosh had left for Israel, Dialogue: 0,0:01:35.64,0:01:38.89,Default,,0000,0000,0000,,but I remember explaining it \Nto Don Ruben Dialogue: 0,0:01:39.70,0:01:43.70,Default,,0000,0000,0000,,and he was like, \N"Yeah, this really is something here." Dialogue: 0,0:01:43.70,0:01:47.10,Default,,0000,0000,0000,,Not right away though,\NDon took some convincing. Dialogue: 0,0:01:47.50,0:01:49.21,Default,,0000,0000,0000,,By the time you got to Don, Dialogue: 0,0:01:49.21,0:01:51.23,Default,,0000,0000,0000,,there have been some back\Nand forth with him Dialogue: 0,0:01:51.23,0:01:53.30,Default,,0000,0000,0000,,and in correspondence actually. Dialogue: 0,0:01:53.70,0:01:57.10,Default,,0000,0000,0000,,But I remember at some point \Ngetting a call or email from him Dialogue: 0,0:01:57.10,0:02:00.02,Default,,0000,0000,0000,,saying that he was sitting \Nat the airport in Rome Dialogue: 0,0:02:00.02,0:02:03.70,Default,,0000,0000,0000,,and looking at the paper \Nand thinking, Dialogue: 0,0:02:03.70,0:02:07.00,Default,,0000,0000,0000,,"Yeah, no actually, \Nyou guys are onto something." Dialogue: 0,0:02:07.49,0:02:08.74,Default,,0000,0000,0000,,We were happy about Dialogue: 0,0:02:08.74,0:02:10.67,Default,,0000,0000,0000,,but that took longer \Nthan I think you remember. Dialogue: 0,0:02:10.80,0:02:12.50,Default,,0000,0000,0000,,Yeah, it wasn't right away Dialogue: 0,0:02:12.50,0:02:13.70,Default,,0000,0000,0000,,[laughter] Dialogue: 0,0:02:13.70,0:02:16.50,Default,,0000,0000,0000,,because I know that I was back \Nin Israel by the time that happened. Dialogue: 0,0:02:16.50,0:02:18.40,Default,,0000,0000,0000,,I'd left for Israel in the summer-- Dialogue: 0,0:02:19.39,0:02:22.60,Default,,0000,0000,0000,,I was only at Harvard for two years.\NWe had that one year. Dialogue: 0,0:02:22.60,0:02:25.70,Default,,0000,0000,0000,,It is remarkable, I mean, that\None year was so fateful for us. Dialogue: 0,0:02:25.90,0:02:27.20,Default,,0000,0000,0000,,- [Guido] Yes. Dialogue: 0,0:02:27.69,0:02:30.20,Default,,0000,0000,0000,,I think we understood there was\Nsomething good happening, Dialogue: 0,0:02:30.20,0:02:34.00,Default,,0000,0000,0000,,but maybe we didn't think it was\Nlife-changing, only in retrospect. Dialogue: 0,0:02:34.00,0:02:35.72,Default,,0000,0000,0000,,♪ [music] ♪ Dialogue: 0,0:02:35.72,0:02:37.50,Default,,0000,0000,0000,,- [Isaiah] As you said, it sounds like \Na small group of people Dialogue: 0,0:02:37.50,0:02:39.19,Default,,0000,0000,0000,,were initially quite receptive, Dialogue: 0,0:02:39.19,0:02:42.19,Default,,0000,0000,0000,,perhaps took some time for\Na broader group of people Dialogue: 0,0:02:43.09,0:02:46.02,Default,,0000,0000,0000,,to come around to seeing \Nthe LATE framework Dialogue: 0,0:02:46.02,0:02:47.70,Default,,0000,0000,0000,,as a valuable way to look \Nat the world. Dialogue: 0,0:02:47.70,0:02:50.10,Default,,0000,0000,0000,,I guess, in over the course of that, Dialogue: 0,0:02:50.10,0:02:51.89,Default,,0000,0000,0000,,were their periods \Nwhere you thought, Dialogue: 0,0:02:51.89,0:02:54.29,Default,,0000,0000,0000,,maybe the people saying \Nthis wasn't a useful way Dialogue: 0,0:02:54.29,0:02:55.75,Default,,0000,0000,0000,,to look at the world were right? Dialogue: 0,0:02:55.75,0:02:58.40,Default,,0000,0000,0000,,Did you get discouraged? \NHow did you think about? Dialogue: 0,0:02:58.40,0:03:00.90,Default,,0000,0000,0000,,I don't think I was discouraged\Nbut the people who were saying Dialogue: 0,0:03:00.90,0:03:05.90,Default,,0000,0000,0000,,that we're smart people, \Nwell informed econometricians, Dialogue: 0,0:03:05.90,0:03:07.80,Default,,0000,0000,0000,,sophisticated readers Dialogue: 0,0:03:08.90,0:03:11.80,Default,,0000,0000,0000,,and I think the substance\Nof the comment was, Dialogue: 0,0:03:11.80,0:03:14.30,Default,,0000,0000,0000,,this is not what econometrics \Nis about. Dialogue: 0,0:03:14.30,0:03:20.57,Default,,0000,0000,0000,,Econometrics was being transmitted \Nat that time was about structure. Dialogue: 0,0:03:21.30,0:03:24.29,Default,,0000,0000,0000,,There was this idea that\Nthere's structure in the economy Dialogue: 0,0:03:25.10,0:03:27.20,Default,,0000,0000,0000,,and it's our job to discover it Dialogue: 0,0:03:27.20,0:03:30.95,Default,,0000,0000,0000,,and what makes it structure\Nis it's essentially invariant Dialogue: 0,0:03:31.90,0:03:34.90,Default,,0000,0000,0000,,and so we're saying, \Nin the LATE theorem, Dialogue: 0,0:03:34.90,0:03:37.70,Default,,0000,0000,0000,,that every instrument produces\Nits own causal effect, Dialogue: 0,0:03:37.70,0:03:41.39,Default,,0000,0000,0000,,which is in contradiction to that\Nto some extent Dialogue: 0,0:03:41.39,0:03:43.80,Default,,0000,0000,0000,,and so that was \Nwhere the tension was. Dialogue: 0,0:03:43.80,0:03:45.55,Default,,0000,0000,0000,,People didn't want \Nto give up that idea. Dialogue: 0,0:03:46.30,0:03:50.20,Default,,0000,0000,0000,,Yeah, I remember once \Npeople were started Dialogue: 0,0:03:51.20,0:03:55.78,Default,,0000,0000,0000,,arguing more more vocally \Nagainst that, Dialogue: 0,0:03:56.90,0:03:59.48,Default,,0000,0000,0000,,that never really \Nbothered me that much. Dialogue: 0,0:03:59.48,0:04:03.05,Default,,0000,0000,0000,,It seemed clear that \Nwe had a result there Dialogue: 0,0:04:03.05,0:04:06.05,Default,,0000,0000,0000,,and it became somewhat \Ncontroversial, Dialogue: 0,0:04:06.05,0:04:08.40,Default,,0000,0000,0000,,but controversial in a good way. Dialogue: 0,0:04:08.62,0:04:10.19,Default,,0000,0000,0000,,It was clear that people felt Dialogue: 0,0:04:10.70,0:04:13.84,Default,,0000,0000,0000,,they had to come out against it \Nbecause-- Dialogue: 0,0:04:13.97,0:04:15.96,Default,,0000,0000,0000,,Well, I think what \Nwe think it's good now Dialogue: 0,0:04:17.43,0:04:19.24,Default,,0000,0000,0000,,we might not have loved it \Nat the time. Dialogue: 0,0:04:20.17,0:04:22.98,Default,,0000,0000,0000,,I remember being somewhat,\Nthe more upset-- Dialogue: 0,0:04:22.98,0:04:24.91,Default,,0000,0000,0000,,there was some dinner \Nwhere someone said, Dialogue: 0,0:04:24.91,0:04:27.66,Default,,0000,0000,0000,,"No, no, that paper with Josh, Dialogue: 0,0:04:27.66,0:04:30.81,Default,,0000,0000,0000,,that was doing a disservice\Nto the profession." Dialogue: 0,0:04:32.05,0:04:33.85,Default,,0000,0000,0000,,We definitely had \Nreactions like that. Dialogue: 0,0:04:35.41,0:04:38.20,Default,,0000,0000,0000,,At some level, that may be \Nindicative of the culture Dialogue: 0,0:04:38.40,0:04:40.00,Default,,0000,0000,0000,,in general in economics \Nat the time. Dialogue: 0,0:04:41.40,0:04:44.10,Default,,0000,0000,0000,,I thought back later, \Nwhat if that'd happened now, Dialogue: 0,0:04:44.60,0:04:47.68,Default,,0000,0000,0000,,if I was a senior person sitting\Nin that conversation, Dialogue: 0,0:04:48.30,0:04:51.90,Default,,0000,0000,0000,,I would call that out because it\Nreally was not appropriate-- Dialogue: 0,0:04:53.00,0:04:54.20,Default,,0000,0000,0000,,- [Josh] It wasn't so bad. Dialogue: 0,0:04:54.60,0:04:56.60,Default,,0000,0000,0000,,I think the criticism is-- Dialogue: 0,0:04:57.70,0:04:59.30,Default,,0000,0000,0000,,It wasn't completely misguided, Dialogue: 0,0:05:00.21,0:05:01.35,Default,,0000,0000,0000,,it was maybe wrong. Dialogue: 0,0:05:01.80,0:05:04.48,Default,,0000,0000,0000,,No, no, but you can say \Nthe paper is wrong Dialogue: 0,0:05:05.40,0:05:06.60,Default,,0000,0000,0000,,but it's saying that Dialogue: 0,0:05:06.60,0:05:08.11,Default,,0000,0000,0000,,it's a disservice \Nto the profession, Dialogue: 0,0:05:08.13,0:05:09.30,Default,,0000,0000,0000,,that's not really-- Dialogue: 0,0:05:09.30,0:05:10.30,Default,,0000,0000,0000,,Personal. Dialogue: 0,0:05:10.30,0:05:12.65,Default,,0000,0000,0000,,Yes, and doing that, not to me, Dialogue: 0,0:05:12.65,0:05:14.61,Default,,0000,0000,0000,,but in front of \Nmy senior colleagues. Dialogue: 0,0:05:15.39,0:05:17.49,Default,,0000,0000,0000,,But nobody was saying \Nthe result was wrong Dialogue: 0,0:05:17.49,0:05:18.70,Default,,0000,0000,0000,,and I remember also, Dialogue: 0,0:05:18.70,0:05:21.70,Default,,0000,0000,0000,,some of the comments \Nwere thought-provoking Dialogue: 0,0:05:21.70,0:05:23.16,Default,,0000,0000,0000,,so we had some negative reviews, Dialogue: 0,0:05:23.16,0:05:25.86,Default,,0000,0000,0000,,I think on the average \Ncausal response paper. Dialogue: 0,0:05:26.50,0:05:30.36,Default,,0000,0000,0000,,Somebody said, "These compliers\Nyou can't figure out who they are." Dialogue: 0,0:05:31.45,0:05:33.00,Default,,0000,0000,0000,,Right, it's one thing to say Dialogue: 0,0:05:33.00,0:05:35.04,Default,,0000,0000,0000,,you're estimating \Nthe effect of treatment Dialogue: 0,0:05:35.04,0:05:36.76,Default,,0000,0000,0000,,on the treated \Nor something like that. Dialogue: 0,0:05:36.79,0:05:38.40,Default,,0000,0000,0000,,You can tell me who's treated, Dialogue: 0,0:05:38.70,0:05:42.29,Default,,0000,0000,0000,,people in the CPS,\Nyou can't tell me who's a complier. Dialogue: 0,0:05:42.93,0:05:44.68,Default,,0000,0000,0000,,So that was a legitimate challenge. Dialogue: 0,0:05:44.68,0:05:47.80,Default,,0000,0000,0000,,That's certainly fair \Nand I can see why Dialogue: 0,0:05:49.88,0:05:53.70,Default,,0000,0000,0000,,that part made people\Na little uneasy and uncomfortable. Dialogue: 0,0:05:54.30,0:05:56.40,Default,,0000,0000,0000,,But at the same time Dialogue: 0,0:05:56.90,0:06:00.24,Default,,0000,0000,0000,,because it showed that you couldn't\Nreally go beyond that, Dialogue: 0,0:06:00.80,0:06:03.78,Default,,0000,0000,0000,,it was very useful thing \Nto realize. Dialogue: 0,0:06:04.63,0:06:06.50,Default,,0000,0000,0000,,I remember on the day, Dialogue: 0,0:06:06.50,0:06:09.91,Default,,0000,0000,0000,,we got to the key result \Nthat I was thinking, Dialogue: 0,0:06:09.91,0:06:14.22,Default,,0000,0000,0000,,"Wow, this is as good as it gets. Dialogue: 0,0:06:14.22,0:06:16.98,Default,,0000,0000,0000,,Here we actually have an insight\Nbut clearly--" Dialogue: 0,0:06:17.50,0:06:19.76,Default,,0000,0000,0000,,And we had to sell it \Nat some point. Dialogue: 0,0:06:19.76,0:06:22.00,Default,,0000,0000,0000,,For quite a few years, \Nwe had to sell it Dialogue: 0,0:06:23.48,0:06:24.89,Default,,0000,0000,0000,,and it's proven to be quite useful. Dialogue: 0,0:06:25.50,0:06:28.76,Default,,0000,0000,0000,,I don't think we understood that\Nit would be so useful at the time. Dialogue: 0,0:06:28.76,0:06:29.87,Default,,0000,0000,0000,,No. Dialogue: 0,0:06:30.17,0:06:34.60,Default,,0000,0000,0000,,I did feel early on this was\Na substantial insight. Dialogue: 0,0:06:34.60,0:06:36.44,Default,,0000,0000,0000,,- [Josh] Yeah we [did] something. Dialogue: 0,0:06:36.44,0:06:40.04,Default,,0000,0000,0000,,But I did not think \Ngoals were there. Dialogue: 0,0:06:40.50,0:06:42.40,Default,,0000,0000,0000,,I don't think we were aiming \Nfor the Nobel. Dialogue: 0,0:06:42.65,0:06:43.65,Default,,0000,0000,0000,,[laughter] Dialogue: 0,0:06:43.73,0:06:46.24,Default,,0000,0000,0000,,We were very happy to get\Nthat note in {\i1}Econometrica.{\i0} Dialogue: 0,0:06:46.86,0:06:48.83,Default,,0000,0000,0000,,♪ [music] ♪ Dialogue: 0,0:06:49.90,0:06:51.50,Default,,0000,0000,0000,,- [Isaiah] Are there factors \Nor are ways of approaching problems Dialogue: 0,0:06:51.50,0:06:54.35,Default,,0000,0000,0000,,that lead people to be better \Nat recognizing the good stuff Dialogue: 0,0:06:54.35,0:06:56.60,Default,,0000,0000,0000,,and taking the time to do it \Nas opposed to dismissing it? Dialogue: 0,0:06:56.60,0:06:57.70,Default,,0000,0000,0000,,- [Josh] Sometimes \NI think it's helpful. Dialogue: 0,0:06:57.70,0:06:59.67,Default,,0000,0000,0000,,If you're trying to \Nconvince somebody Dialogue: 0,0:06:59.70,0:07:01.36,Default,,0000,0000,0000,,that you have something \Nuseful to say Dialogue: 0,0:07:01.90,0:07:04.03,Default,,0000,0000,0000,,and maybe they don't \Nspeak your language, Dialogue: 0,0:07:04.89,0:07:06.76,Default,,0000,0000,0000,,you might need \Nto learn their language. Dialogue: 0,0:07:06.76,0:07:08.02,Default,,0000,0000,0000,,Yes, yes, exactly. Dialogue: 0,0:07:08.02,0:07:11.74,Default,,0000,0000,0000,,That's what we did with Don,\Nwe figured out how to-- Dialogue: 0,0:07:11.74,0:07:14.05,Default,,0000,0000,0000,,I remember we had a very hard time Dialogue: 0,0:07:14.05,0:07:15.69,Default,,0000,0000,0000,,explaining the exclusion \Nrestriction to Don, Dialogue: 0,0:07:17.43,0:07:18.99,Default,,0000,0000,0000,,maybe rightfully so, Dialogue: 0,0:07:19.80,0:07:22.24,Default,,0000,0000,0000,,I think Guido and I \Neventually figured out Dialogue: 0,0:07:22.51,0:07:24.42,Default,,0000,0000,0000,,that it wasn't formulated \Nvery clearly, Dialogue: 0,0:07:25.40,0:07:27.45,Default,,0000,0000,0000,,and we came up \Nwith a way to do that Dialogue: 0,0:07:27.45,0:07:29.46,Default,,0000,0000,0000,,in the potential outcomes framework Dialogue: 0,0:07:29.46,0:07:32.22,Default,,0000,0000,0000,,that I think worked\Nfor the three of us. Dialogue: 0,0:07:32.22,0:07:33.42,Default,,0000,0000,0000,,Yeah. Dialogue: 0,0:07:33.42,0:07:35.54,Default,,0000,0000,0000,,Well, it worked for\Nthe bigger literature Dialogue: 0,0:07:35.54,0:07:37.73,Default,,0000,0000,0000,,but I think what you're saying \Nthere is exactly right, Dialogue: 0,0:07:37.75,0:07:41.08,Default,,0000,0000,0000,,you need to figure out \Nhow not just say, Dialogue: 0,0:07:41.08,0:07:43.89,Default,,0000,0000,0000,,"Okay well, I've got this language\Nand this this works great Dialogue: 0,0:07:43.89,0:07:45.90,Default,,0000,0000,0000,,and I've got to convince someone\Nelse to use the language. Dialogue: 0,0:07:45.90,0:07:48.36,Default,,0000,0000,0000,,You could first figure out \Nwhat language they're using Dialogue: 0,0:07:48.68,0:07:50.74,Default,,0000,0000,0000,,and then only then, \Ncan you try to say, Dialogue: 0,0:07:50.74,0:07:53.27,Default,,0000,0000,0000,,"Wow, but here you thinking of it \Nthis way," Dialogue: 0,0:07:53.27,0:07:56.88,Default,,0000,0000,0000,,but that's actually \Na pretty hard thing to do, Dialogue: 0,0:07:56.88,0:07:59.27,Default,,0000,0000,0000,,you get someone from \Na different discipline, Dialogue: 0,0:07:59.27,0:08:02.30,Default,,0000,0000,0000,,convincing them, two junior faculty\Nin a different department Dialogue: 0,0:08:02.30,0:08:04.37,Default,,0000,0000,0000,,actually have something \Nto say to you, Dialogue: 0,0:08:04.37,0:08:06.60,Default,,0000,0000,0000,,that's that takes \Na fair amount of effort. Dialogue: 0,0:08:07.50,0:08:10.24,Default,,0000,0000,0000,,Yeah, I wrote Don \Na number of times, Dialogue: 0,0:08:10.24,0:08:12.05,Default,,0000,0000,0000,,in fairly long letters. Dialogue: 0,0:08:12.05,0:08:13.80,Default,,0000,0000,0000,,I remember thinking \Nthis is worth doing, Dialogue: 0,0:08:14.60,0:08:16.01,Default,,0000,0000,0000,,that if I could convince Don Dialogue: 0,0:08:16.78,0:08:19.44,Default,,0000,0000,0000,,that would validate the framework \Nto some extent. Dialogue: 0,0:08:20.30,0:08:23.17,Default,,0000,0000,0000,,I think both you and Don were Dialogue: 0,0:08:23.17,0:08:25.00,Default,,0000,0000,0000,,a little bit more confident \Nthat you were right. Dialogue: 0,0:08:25.00,0:08:26.44,Default,,0000,0000,0000,,Well, we used to argue a lot Dialogue: 0,0:08:26.44,0:08:28.50,Default,,0000,0000,0000,,and you would sometimes \Nreferee those. Dialogue: 0,0:08:28.50,0:08:29.50,Default,,0000,0000,0000,,[laughter] Dialogue: 0,0:08:29.80,0:08:30.80,Default,,0000,0000,0000,,That was fun. Dialogue: 0,0:08:32.58,0:08:33.97,Default,,0000,0000,0000,,It wasn't hurtful. Dialogue: 0,0:08:35.20,0:08:37.94,Default,,0000,0000,0000,,I remember it getting \Na little testy once, Dialogue: 0,0:08:37.94,0:08:40.08,Default,,0000,0000,0000,,we had lunch in The Faculty Club Dialogue: 0,0:08:40.60,0:08:44.08,Default,,0000,0000,0000,,and we're talking about \Nthe draft lottery paper. Dialogue: 0,0:08:44.93,0:08:47.70,Default,,0000,0000,0000,,We were talking about never takes Dialogue: 0,0:08:47.70,0:08:51.00,Default,,0000,0000,0000,,as people wounded serve \Nin the military irrespective of Dialogue: 0,0:08:51.00,0:08:53.50,Default,,0000,0000,0000,,whether they were getting drafted Dialogue: 0,0:08:54.50,0:08:58.83,Default,,0000,0000,0000,,and you or Don said something\Nabout shooting yourself in the foot, Dialogue: 0,0:08:59.80,0:09:01.53,Default,,0000,0000,0000,,as a way of getting \Nout of the military Dialogue: 0,0:09:01.53,0:09:03.40,Default,,0000,0000,0000,,and that may be \Nthe exclusion restriction Dialogue: 0,0:09:03.40,0:09:05.22,Default,,0000,0000,0000,,for never takes wasn't working Dialogue: 0,0:09:06.30,0:09:08.56,Default,,0000,0000,0000,,and then the other one would say, Dialogue: 0,0:09:08.56,0:09:09.95,Default,,0000,0000,0000,,"Well, yes you could do that Dialogue: 0,0:09:09.95,0:09:12.13,Default,,0000,0000,0000,,but why would you want \Nto shoot yourself in the foot?" Dialogue: 0,0:09:12.13,0:09:13.22,Default,,0000,0000,0000,,[laughter] Dialogue: 0,0:09:13.22,0:09:15.40,Default,,0000,0000,0000,,It got a little [out of hand] there. Dialogue: 0,0:09:15.40,0:09:17.60,Default,,0000,0000,0000,,I usually go for moving to Canada,\Nfor my example, Dialogue: 0,0:09:18.69,0:09:20.10,Default,,0000,0000,0000,,when I'm teaching that. Dialogue: 0,0:09:22.03,0:09:24.10,Default,,0000,0000,0000,,But things are tricky, Dialogue: 0,0:09:24.86,0:09:26.60,Default,,0000,0000,0000,,I get students coming\Nfrom computer science Dialogue: 0,0:09:26.60,0:09:29.94,Default,,0000,0000,0000,,and they want to do things \Non causal inference Dialogue: 0,0:09:30.40,0:09:33.29,Default,,0000,0000,0000,,and it takes a huge amount \Nof effort to figure out Dialogue: 0,0:09:33.46,0:09:35.23,Default,,0000,0000,0000,,how they actually thinking \Nabout problem Dialogue: 0,0:09:35.23,0:09:37.00,Default,,0000,0000,0000,,and whether there's something there Dialogue: 0,0:09:37.00,0:09:38.31,Default,,0000,0000,0000,,and so, now over the years, Dialogue: 0,0:09:38.31,0:09:40.24,Default,,0000,0000,0000,,I've got a little more appreciation\Nfor the fact Dialogue: 0,0:09:40.25,0:09:41.96,Default,,0000,0000,0000,,that Don was actually willing to-- Dialogue: 0,0:09:42.20,0:09:46.00,Default,,0000,0000,0000,,It took him a while, \Nbut he did engage first with Josh Dialogue: 0,0:09:46.40,0:09:47.50,Default,,0000,0000,0000,,and then with both of us Dialogue: 0,0:09:48.38,0:09:50.41,Default,,0000,0000,0000,,and rather than dismissing\Nand say, Dialogue: 0,0:09:50.41,0:09:53.35,Default,,0000,0000,0000,,"Okay, well I can't figure out\Nwhat these guys are doing Dialogue: 0,0:09:53.37,0:09:56.20,Default,,0000,0000,0000,,and it's probably just \Nnot really that interesting." Dialogue: 0,0:09:57.20,0:09:59.74,Default,,0000,0000,0000,,Everybody always wants \Nto figure out quickly, Dialogue: 0,0:09:59.74,0:10:01.38,Default,,0000,0000,0000,,you want to save time Dialogue: 0,0:10:01.38,0:10:04.13,Default,,0000,0000,0000,,and you want to save your brain cells\Nfor other things. Dialogue: 0,0:10:05.00,0:10:07.00,Default,,0000,0000,0000,,The fastest route to \Nthat is to figure out Dialogue: 0,0:10:07.00,0:10:08.46,Default,,0000,0000,0000,,why you should dismiss something. Dialogue: 0,0:10:08.46,0:10:09.56,Default,,0000,0000,0000,,Yes. Dialogue: 0,0:10:09.56,0:10:11.30,Default,,0000,0000,0000,,I don't need to spend time on this. Dialogue: 0,0:10:11.30,0:10:12.67,Default,,0000,0000,0000,,♪ [music] ♪ Dialogue: 0,0:10:12.67,0:10:14.07,Default,,0000,0000,0000,,{\i1}- [Narrator] If you'd like \Nto watch more {\i0} Dialogue: 0,0:10:14.07,0:10:15.74,Default,,0000,0000,0000,,{\i1}Nobel conversations, click here,{\i0} Dialogue: 0,0:10:16.30,0:10:18.35,Default,,0000,0000,0000,,{\i1}or if you'd like to learn\Nmore about econometrics,{\i0} Dialogue: 0,0:10:18.70,0:10:21.30,Default,,0000,0000,0000,,{\i1}check out Josh's "Mastering\NEconometrics" series.{\i0} Dialogue: 0,0:10:21.80,0:10:24.70,Default,,0000,0000,0000,,{\i1}If you'd like to learn more\Nabout Guido, Josh, and Isaiah{\i0} Dialogue: 0,0:10:24.86,0:10:26.70,Default,,0000,0000,0000,,{\i1}check out the links \Nin the description.{\i0} Dialogue: 0,0:10:26.70,0:10:28.02,Default,,0000,0000,0000,,♪ [music] ♪