Huge congratulations to Prof. Sezai Yılmaz and the team at İnönü University’s Liver Transplant Institute on a world first: 16 operations at once for the world’s first 8-way liver paired exchange.

New draft of our paper: Over 70,000 US children are waiting for adoptive placements. We compare family-driven search (families respond to announcements) with caseworker-driven search (caseworkers proactively contact recommended families) using game theory, numerical analysis, and real-world data.1/4

New revision of our paper w/ Xiang Han & Onur Kesten: "Flexible Multi-unit Exchange: Theory and An Application to Blood Allocation with Replacement Donors" In 55 countries, volunteer donations meet <22% of blood demand. We improve how replacement donor programs allocate blood.

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...

Opinion | A Fact About the Floods the Government Doesn’t Seem Eager to Discuss

nytimes.com

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.

The New York Times@nytimes.com · last yr.

Breaking News: The Trump administration halted Harvard’s ability to enroll international students, a major escalation in its battle with the school.

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

Why Turkey’s democratic future matters for the world

My arrest in the government’s attempt to crush dissent shows how important the stability of my country is

on.ft.com

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.

Tayfun Sönmez@tayfunsonmez.bsky.social · last yr.

Excellent analysis… www.cer.eu/insights/don...

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...

75% of US scientists who answered Nature poll consider leaving

More than 1,600 readers answered our poll; many said they were looking for jobs in Europe and Canada.

nature.com

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.

From the europe community on Reddit: 2.2 Million Gathered in İstanbul for Justice and Freedom of İmamoğlu

Explore this post and more from the europe community

reddit.com

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...

Al Roth@alroth.bsky.social · 2y ago

Designing market logistics can be very particular, even when the underlying math is fairly general. #EconSky marketdesigner.blogspot.com/2025/02/kidn...

"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...

Working Group Report: Market Design

nber.org

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

coed2025

The 14th Conference on Economic Design will be held at the Department of Economics, University of Essex, on June 23rd-25th, 2025. The conference contains papers from various fields including Economic...

sites.google.com

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...

Opinion | The Long Shadow of Fraud in Alzheimer’s Research

Fraud in research needs to end.

nytimes.com

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