The BBS-Liver Exchange System today completed its 300th transplant in Malatya, Türkiye, with 102 of them completed this year. Breakdowns of all transplants, categorized by exchange sizes and the type of pairs involved, are provided below. When we launched this program in 2022.

Prof Sezai Yılmaz's interview in Turkey related to the BBS-liver paired exchange program that Tayfun Sönmez and I founded with him and their other liver transplant achievements in Malatya, Turkey by their amazing team (use google translate) ankahaber.net/haber/detay/...

Great article regarding Prof. Sezai Yilmaz, his great success in building a world-leading transplant center in Malatya, and the founding of our liver exchange system (Google Translate works reasonably well) www.fortuneturkey.com/malatyayi-du... @tayfunsonmez.bsky.social

Elon Musk likened the government to the DMV; this is an incorrect and horrendous analogy. Another reminder: www.nytimes.com/2025/07/09/o...

Musk's DMV = government analogy is so wrong at so many levels, especially in regulation and solving the public goods provision problem in research funding and infrastructure building. DMV analogy can work if police, traffic law provision and DOT become part of DMV. Then decide how to optimize it.

One my favorite college professors, Joe Nye, passed very recently. He developed the concept of soft power in international relations. Two of the strongest sources of US soft power were international aid and higher ed. The Republican administration has utterly destroyed both. Ask yourself why.

This is the stuff of authoritarian regimes. There isn't even the pretense that this is anything but persecution, unbound by law.

This is bleak reading

From the mayor of Istanbul to the world, opinion essay on FT: on.ft.com/4jxJrrj Why Turkey’s democratic future matters for the world

If you are not already following @seanmcarroll.bsky.social's Mindscape, probably the best Science and Philosophy podcast out there, you are definitely missing big time. After so many years of following, he deserves a shoutout. At these trying times, the best refuge.

I certainly agree with all points. Some are good for Europe clearly. But fur the US, the scary part is that this is a tipping point problem. Even if the wave turns back it will take generations to build normalcy with the allies. Brexit is a living example.

Is the US going to become the science backwater it once was? The current administration's love of the 19th Century certainly points in that direction. www.nature.com/articles/d41...

2.2 million people gathered to protest the recent arrest of Istanbul Mayor Ekrem Imamoglu, the main rival of Erdogan in the next presidential election.

It feels like Adam Smith never wrote either "Theory of Moral Sentiment" or "Wealth of Nations" or even a pin factory was never opened. At least there will be many poli sci and econ PhD theses written in the next decade due to this bonanza.

Thank you, Al, for promoting our collaborators' work. You can more learn about the background of how we initiated the Liver Paired Exchange Program in Malatya in Section 12.3 of the manuscript of @tayfunsonmez.bsky.social arxiv.org/pdf/2401.003...

"We have fought and died alongside you....During your darkest hours...we were always there. Standing with you, grieving with you, the American people.” I’ve had my differences with Justin Trudeau, for sure, but he rose to the occasion here.

NBER Market Design Working Group Report, talking about many exciting recent papers in all areas of market design/design of economic mechanisms. www.nber.org/reporter/202...

I am excited to share the new version of our paper "Market Design for Distributional Objectives in (Re)assignment: An Application to Improve the Distribution of Teachers in Schools" with @combeju.bsky.social, Umut Dur, Olivier Tercieux, and @camilleterrier.bsky.social

I encourage you all to submit a paper to the 14th Conference on Economic Design. The conference is organized by Albin Erlanson at the University of Essex, June 23rd-25th, 2025. Paper submission deadline is 1st February, 2025. Hope to see many of you there 🙂 #econsky @vmdseminar.bsky.social

On the amazing downfall of Alzheimer's research by widespread manipulations and the crooked incentive structure in science: www.nytimes.com/2025/01/24/o...

I am proud to announce that the BBS Liver Exchange System that I co-founded (along with Tayfun Sönmez and Sezai Yilmaz) just facilitated its 201st transplant. I am very proud to be helping such a brilliant and dedicated bunch of doctors and professionals. caprazkaracigernakli.inonu.edu.tr/en

This is great news! Data Colada is one of the greatest services to science in the modern age. https://twitter.com/jpsimmon/status/1833976010192421244

Congratulations go to Inonu University Transplant Institute for completing their 150th liver paired exchange transplant with the (third-ever) 6-way exchange conducted today; the following write-up highlights some of the recent developments: https://t.co/k5MfabYDV4

A very untimely loss in any dimension :( https://twitter.com/fkojima79/status/1808819367637045468

Indeed... https://twitter.com/tyfn_sonmez/status/1792629443116020169

I cannot believe this was 20 years ago. While visiting HBS as an asst prof thanks to Al Roth's invitation, Al mentioned hearing about ad hoc exchanges happening. @tyfn_sonmez and I had a paper on a related model (based on Tayfun's paper w A. Abdulkadiroglu.). https://t.co/CL7v8Oeg5c

I am excited to share two matching survey chapters I co-wrote with Tayfun Sönmez (@tyfn_sonmez) for the "Handbook of the Economics of Matchings (Vol.1)" edited by Yeon-Koo Che, Pierre-Andre´ Chiappori and Bernard Salanie´...

Today marks the 100th exchange transplant with the 5th 4-way exchange conducted at BBS Liver Exchange System at Inonu University Liver Transplant Institute in Malatya Turkey. I am proud to be helping these dedicated surgeons and scientists in their endeavor. https://t.co/ojPugkD8LK

Malatya, ‘çapraz karaciğer nakli’nin dünya başkenti oluyor https://www.ekonomim.com/kose-yazisi/malatya-capraz-karaciger-naklinin-dunya-baskenti-oluyor/727073 @profsezaiyilmaz @tyfn_sonmez @drvolkanince @akbulutsami @ProfDrAKizilay

I am extremely proud of supporting this incredible transplant team. The world's first 6-way liver exchange was carried out in Malatya this week in addition to conducting all two 5-way exchanges, all four 4-way exchanges, and 9 of the 11 3-way exchanges in the world. https://t.co/VJVaQosq1t

Happy new year to all. I hope it brings (starts to bring) health, peace, prosperity to all inhabitants of earth and the planet itself. Herkese iyi yıllar. Umarım gezegenimize ve her yaşayanına sağlık, barış ve refah getirir (getirmeye başlar).

Obviously this tweet is telling the opposite of what the paper and the abstract is saying, but here it goes. "Design economists as *not consultants but outside critics* helped shape the design paradigm." https://twitter.com/nberpubs/status/1735434737320186238

I would not write this lightly: Pietro is a very strong candidate and a very gifted microtheorist. I am on his committee. I recommend him to ANY department. He is one of the best students I have ever interacted with, and that list includes many top-notch theorists of our time. https://t.co/tKmx...

İnönü Üniversitesi, Banu Bedestenci Sönmez Karaciğer Çapraz Nakil Sistemi'nin yeni internet sitesi: https://t.co/OFsjLMvvvM The website of the Inonu University BBS Liver Exchange System is live (in English): https://t.co/ixrwuDUEnb @tyfn_sonmez @profsezaiyilmaz

Today was the fourth 4-way exchange (third in the last 3 months) conducted by the BBS Liver Paired Exchange Program at Malatya. The number of exchange transplants in the last 3 months is 47 (inc. world's first two 5-ways). Congrats! @tyfn_sonmez @ProfDrAKizilay @profsezaiyilmaz https://t.co/yxl...

Today is the 100th Anniversary of the Turkish Republic. Kemal Ataturk and co-founders gave hope of a free, better, modern future for a war-battered people. Today, especially Turkish women are as free and educated thanks to them. I wish a better future for all people.

Today was another historic day in Malatya conducting the first ever 5-way liver paired exchange. Additionally, since August 2023 our system found and the Institute conducted 2 4-way exchanges, 4 3-way exchanges, and 5 2-way exchanges altıgether transplanting to 35 patients. https://t.co/SAEh4l6ggB

At Malatya, the second ever 4-way liver exchange. After the publicity of the first one, many pairs listed in the system, resulting in two 2-way and two 3-way exchanges in addition to this 4-way in 1 month. Congratulations go out to this incredible team of doctors. https://t.co/phFpAJyMBv

Congratulations go to Inacio Bo @inaciog for being the driver of implementing the better affirmative action policy in a constitution design effort that started with his dissertation 10 years ago. https://twitter.com/inaciog/status/1689465614258077696

People are asking where to donate. I recommend (e.g.) http://bridgetoturkiye.org to donate for the most powerful Earthquake ever to shake modern Turkey over the most densely populated area east of Ankara affecting at least 10 million people in Turkey (plus Northern Syria).

A great student of Tayfun Sönmez's and mine in the market this year, Denis Sokolov, with a paper motivated by problems in Russian college admissions where lack of dorm assignment at the admission stage discourages enrollment and participation. https://www.denissokolov.com/

*Conscious

Great speech, the only way to fight against you know whom with such powerful voices. https://twitter.com/bobcesca_go/status/1516601022931689475

Extremely sad story. https://twitter.com/UkrainianMath/status/1505598974895472646

The deadline for submissions to the 12th Conference on Economic Design (in person) at the University of Padua, Italy is March 15th, 2022. https://sites.google.com/view/economicdesign22 https://twitter.com/Economit_Unipd/status/1501968330760101888

Another great student in the market this year from Boston College is Andrew Copland https://sites.google.com/bc.edu/andrewcopland/home A decision theorist at heart but all general microeconomist with an additional nice market design paper as well. I am his secondary advisor.

A great student of mine on the market with focus on market design, decision theory, behavioral economics Manshu Khanna https://www.manshukhanna.com/ @manshukhanna Let me know if you have questions.

Here is a summary of our policy efforts (with @prof_parag and Tayfun Sonmez) and their results for the adoption of reserve systems for COVID-19 therapeutics, ventilators, and vaccines. https://t.co/nvDS3t1imw