News & Musings
News & Musings
Herein below you can read/ access my latest posts from the BlueSky and Twitter (X) platforms (the custom Twitter (X) feed updates with a substantial lag and sometimes chaotically). You are obviously better off reading/ following me directly on Twitter (X) and/or on BlueSky and/or on Mastodon and/or on Threads for full functionality. (NB. The latter three platform feeds, unlike Twitter (X), are readable also if not logged in on the corresponding platform.)
Forthcoming in AEJ: Microeconomics: "Optimal Costly Oversight with Investment and Cream-Skimming" by Sumeyra Akin and Tibor Heumann.

Optimal Costly Oversight with Investment and Cream-Skimming
(Forthcoming Article) - Transplant center oversight—conducted through costly flagging based on survival rates—is intende...
www.aeaweb.org
A @RefineDotInk review often surfaces errors that authors (and other AI's) missed.
A common request: can Refine check whether the issues are fully addressed in a new version of the work?
We're happy to be rolling out a new feature that does exactly this with a new review.
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Refine (@RefineDotInk) is an AI technical refereeing tool. In economics it's used by several top journals
We're very eager for folks in engineering and applied science (outside social science) to try it.
If you'd be willing to do so and share impressions, please DM/reply.
RIP François Englert.
Briefly chatted with him in Stockholm in Dec. 2013. He was charmed that even an economist knew some real details of his work... until I mentioned Gerard 't Hooft had once nearly lured me into physics. That, I suspect, was my own symmetry-breaking moment :-).
François Englert (1932 – 2026)
C’est avec une profonde tristesse que nous avons appris le décès du physicien théoricien belge François Englert, à l’âge de 93 ans.
En savoir plus : https://home.cern/fr/francois-englert-1932-2026/
“The discrepancy between the Rabelais book and Bakhtin’s other studies has mystified Bakhtin scholars. Some who applaud one Bakhtin find the other unconvincing or even repellent.” —Gary Saul Morson

Reassembling Bakhtin | Gary Saul Morson
Since Mikhail Bakhtin became widely known in the 1980s, his book on Rabelais has perplexed readers for its seeming...
go.nybooks.com
Congratulations to #CharlesManski who is being awarded today the #BBVAForntiersAward! Inspiring speech about his contributions to the importance of model uncertainty in empirical analyses, policy evaluation, and identification
Fresh research: Who Counts as Young? Matching Rules for Social Discounting.
We often compare the young with the old, but in a heterogeneous OLG economy age alone can't define the object b/c assets, earnings, constraints, and private values enter before the normative question.
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The theorem gives a graph characterization. Build the supported current-cell graph and attach to each valid age comparison its label, then ask whether the labels are induced by one residual potential. Parallel witnesses must agree, and every cycle must close across the graph.
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A calibrated OLG audit asks then asks which age signs survive after support, units, wedges, and anchors are made explicit, and which claims remain uncertified rather than a matter of noise alone.
Preprint on arXiv
Code on GitHub https://github.com/sbuhai/current-cell-matching-project
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Who Counts as Young? Matching Rules for Social Discounting
In heterogeneous OLG economies, age alone does not tell us who counts as young or old in a local welfare compa...
arxiv.org
In 1992, two mathematicians proved that seven riffle shuffles are enough to shuffle a deck of cards — but only if you can cut your deck with the precision of a professional magician. A new proof gives hope for those with a less magical touch.

Seven Perfect Shuffles Randomize a Deck of Cards. But How Many Sloppy Ones? | Quanta Magazine
A decades-old proof showed that seven shuffles are enough to mix up a deck of cards. But it requires you to ...
www.quantamagazine.org