AP in Econ at USC. I do Information Economics & more, both pure and applied. Best friend of Spinoza (Nosik) Petrov-Libgober, husband of @lenapetrova.bsky.social, and brother of @blibgober.bsky.social.https://bsky.app/profile/jlibdoesecon.bsky.socialhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3ml7alkrlss2rReally excited to see this in print!! It's even more meaningful as my first publication with a student (at least, one who remained a student from start to finish). Also appreciative of everyone who helped make the paper better--can't even describe how happy I am with how the paper turned out. [contains quote post or other embedded content]06 May 2026 17:38 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3ml7alkrlss2rhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3mcli5svj7s2a@ EconSky: If any of you have taught (or are teaching/planning to teach) any of my papers, could you please DM me? I would be very grateful. Any honest DM will receive a personalized picture of my Spinoza (Nosik) Petrov-Libgober (my dog) as a token of gratitude.17 Jan 2026 01:39 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3mcli5svj7s2ahttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3m4izzvayvk27My paper on research registries with Eliot Abrams and John List is now forthcoming at Economic Journal: https://academic.oup.com/ej/advance-article-abstract/doi/10.1093/ej/ueaf120/8307492?redirectedFrom=fulltext Very happy to finally have finished up this project, although I learned a ton from working on it.31 Oct 2025 17:50 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3m4izzvayvk27https://bsky.app/profile/jlibdoesecon.bsky.social/post/3m4bxkkvfbs2zThis was a fun one! Glad to see it in a great home. [contains quote post or other embedded content]28 Oct 2025 22:17 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3m4bxkkvfbs2zhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3luzz5x6jp22nI've discovered that you have much more fun as a tourist if you don't know what the exchange rate is.28 Jul 2025 16:28 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3luzz5x6jp22nhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3luukov7kvs2rI feel like I've heard critiques of economics as a discipline since as long as I've studied economics. Has anyone done a historiography of this? I guess it's a sign of the field's influence that people seem to care so much, so maybe it's a good thing. At the same time, I can't help but think...why?26 Jul 2025 12:26 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3luukov7kvs2rhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3ltyzkbqvrs2uHuge congrats to my amazing colleague and her coauthors on this fantastic paper. [contains quote post or other embedded content]15 Jul 2025 13:37 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3ltyzkbqvrs2uhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lpfj6couak2uSeems that I jumped ahead of this a little bit... [contains quote post or other embedded content]17 May 2025 21:43 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lpfj6couak2uhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lpf527mpak2cLess related to recent events than it may seem, but I wanted to post this at some point: My Retractions paper, with brilliant coauthors Duarte Goncalves and Jack Willis, was accepted at Restud earlier this year, and is now on the journal's website. https://www.restud.com/retractions-updating-from-complex-information/17 May 2025 18:06 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lpf527mpak2chttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3loqwqmx4f226An important paper on the role of subjective beliefs on the business cycle, now published in Restud. https://academic.oup.com/restud/advance-article-abstract/doi/10.1093/restud/rdae054/7683187?redirectedFrom=fulltext&login=false09 May 2025 17:20 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3loqwqmx4f226https://bsky.app/profile/jlibdoesecon.bsky.social/post/3lnxpsf42ck2bMy paper on algorithmic pricing, joint with In-Koo Cho, is now online at the Journal of Economic Theory. https://www.sciencedirect.com/science/article/abs/pii/S002205312500061429 Apr 2025 16:39 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lnxpsf42ck2bhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lneoqojel22mMy dog will literally climb on top of me while I'm working on my laptop but then start to growl in discomfort if I hug him back. Make it make sense.22 Apr 2025 02:59 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lneoqojel22mhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lmbrgc3pp224As an economist, here is my take on how to understand the justification for Trump's tariffs. https://en.wikipedia.org/wiki/Kettle_logic08 Apr 2025 05:44 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lmbrgc3pp224https://bsky.app/profile/jlibdoesecon.bsky.social/post/3lkafe7eyxk2zI've taught game theory for several years now (maybe like, 10 times?) but somehow it only now just hit me that mixed strategies in Bayesian games are pretty damn weird.13 Mar 2025 05:45 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lkafe7eyxk2zhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3ljglaqiewk2sThe only part I don't like about this is that now we may be forced to spell it "defence." [contains quote post or other embedded content]02 Mar 2025 23:21 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3ljglaqiewk2shttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3liixsg7zic2sIf I shared the ITYSL meme with Tim Robinson in the hot dog suit every time a Republican said that Putin is out of control, I wouldn't have time to do anything else.19 Feb 2025 04:46 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3liixsg7zic2shttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lieb6ye5722rRubio has like, what, 5 months left on the job?17 Feb 2025 07:51 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lieb6ye5722rhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3li6iuyl7p22lRoses are red, A noise ball is blue, But when you find out it's noise, The info will not undo. https://uploads.strikinglycdn.com/files/8779d73b-34d2-4502-89d2-63e96f14a0f4/RetractionsJune2024.pdf15 Feb 2025 00:52 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3li6iuyl7p22lhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lhs2qwwa322sChiefs can still win this if Mike Pence has the courage to do the right thing.10 Feb 2025 02:08 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lhs2qwwa322shttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lhne6jbsmk2lHonestly, staying away from social media during the impending collapse of the federal government/American society is a pretty good move for overall mental health.08 Feb 2025 05:13 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lhne6jbsmk2lhttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lhcez5mkns2sToday I asked my class if anyone had seen "A Beautiful Mind." Nobody raised their hands. I was in shock, until I realized that they probably hadn't been born when it came out...03 Feb 2025 20:29 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lhcez5mkns2shttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lgvt3s4ic22oIf only LA's construction of the LAX people mover had the same urgency of USC's construction of its new football stadium....29 Jan 2025 20:36 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lgvt3s4ic22ohttps://bsky.app/profile/jlibdoesecon.bsky.social/post/3lgezxnsmfc2tI feel like this deserves more attention than the issues people do seem to be focusing on.... [contains quote post or other embedded content]23 Jan 2025 04:24 +0000at://did:plc:tacppoymf4enx46ntn2m6fa2/app.bsky.feed.post/3lgezxnsmfc2t