Market Design Community

📜We propose a smart lottery mechanism for school choice that ex-ante Pareto improves the probabilistic assignment while preserving ex-post stability. Using IP with column generation, we obtain Pareto gains over DA with lottery. arxiv.org/abs/2602.10679 @econD47 @econ_cs

🧩Our new survey is out! Combinatorial Contracts: Recent Progress & Emerging Frontiers 🧩 Mapping the landscape of combinatorial contracts, highlighting structural insights, algorithmic tools, and complexity barriers. [to appear in SIAM ICM 2026] arxiv.org/abs/2510.15065

📢 The EC'26 website is live! ec26.sigecom.org 📝Abstract deadline: Feb 2, 2026 📝Paper deadline: Feb 9, 2026 A home for your strongest work in EconCS 💫 @AcmSIGecom @econD47

Incredibly honored to receive the inaugural @INFORMS AMD Market Design Impact Award and especially delighted to share it with my best friends and coauthors @AssafRomm and Avinatan Hassidim. 1/2

Deeply grateful to the selection committee, and to all our wonderful colleagues and collaborators over the years @econD47 @AcmSIGecom @PSUEcon @PSULiberalArts @penn_state. Stay tuned for new and exciting work! 2/2

📢Excited to announce: EC'26 📅 When: July 6–10, 2026 🍝 Where: Rome, Italy General Chair: Stefano Leonardi PC Chairs: Alex Teytelboym & Matt Weinberg Hope to see as many of you there! @AcmSIGecom @econD47 #ACMEC26

Vahideh Manshadi and I are chairing the #EC25Tutorials this year. They will take place June 17-19. The program can be found here: ec25.sigecom.org/program/tutori… Registration (free!): forms.gle/9E91bT7qpR7hub…

Market design community @econD47! Interested in school choice and looking for a 4-year tenure track position? Join me at @lunduniversity Requirements: max 5 years since completion of PhD, no employment in Sweden since 2021. More info? Contact me or see 👇 lu.varbi.com/en/what:job/jo…

New paper out on #PBMs , arguing they needlessly over-exclude drugs from their formulary. "A Combinatorial Auction Design for Formulary Position" …4-49dc-ad66-d6c488c905a9.usrfiles.com/ugd/c1c048_4c2… … @econD47 #econtwitter @FTC @JusticeATR

New paper out on #PBMs "A Combinatorial Auction Design for Formulary Position" available on SSRN papers.ssrn.com/sol3/papers.cf… @econD47 #econtwitter @FTC @JusticeATR

📣 T H R E E D A Y S ! This Thursday! Make sure you're registered--it's required (but free)! Further deets: sigecom.org/meetings/winte…

Please submit a paper to the 14th Conference on Economic Design. The conference is organized by Albin Erlanson at the University of Essex, June 23-25, 2025. Submission deadline is 1 February, 2025. Hope to see many of you there 🙂 #econtwitter @econD47 sites.google.com/view/coed2025/…

Hi. I am now on @bluesky. Please follow me there if you are interested 🙏 My handle is proftommyandersson.bsky.social #econtwitter @econD47

Don't miss tomorrow talk by Takuro Yamashita from @osaka_univ_e. The paper looks fantastic! Join us at 7am LA | 10am NY | 4pm Paris | 5pm Tel Aviv | 11pm Beijing | Midnight Tokyo. #EconTwitter @WiSoUniCologne @ZEW @CEPSnews

Last Monday's great talk by Simon Finster (@CrestUmr & @IP_Paris_), 'Equitable Auctions' w/. P. Loiseau, @SimonMauras, M. Molina & @BaryPradelski is now available on our YouTube channel. ➡️Watch it here: youtube.com/watch?v=jjjxkV… #EconTwitter @WiSoUniCologne @ZEW @CEPSnews

Hi #EconTwitter, I am Manpreet Singh, PhD @PSEinfo . My #EconJMP analyses large renewable capacity auctions, focusing on India. I study 2 issues: 1⃣ Theory: Cost-efficiency of firms selected in India's auction. 2⃣ Empirical: Impact of efficient alternatives on public funds 🧵

I'll be giving a tutorial on 'Algorithms & Fairness' at The Australian Summer School @USyd on 3rd December. URL: sites.google.com/view/sydney-tc…

Thank you Simon Finster (@CrestUmr) for today's fantastic talk! In case you missed it, we will be sharing the video soon. Our next speaker is Takuro Yamashita (@osaka_univ_e) in two weeks, on December 09! #EconTwitter @WiSoUniCologne @ZEW @CEPSnews

Forthcoming in AEJ: Microeconomics: "Unraveling and Inefficient Matching" by Akhil Vohra. aeaweb.org/articles?id=10…

Don't miss tomorrow's talk by Simon Finster from @CrestUmr & @IP_Paris_. The paper looks great! Simon is also on the market this year. Join us at 7am LA | 10am NY | 4pm Paris | 5pm Tel Aviv | 11pm Beijing | Midnight Tokyo. #EconTwitter @WiSoUniCologne @ZEW @CEPSnews