Shengwu Li
@shengwuli.bsky.social
Econ prof at Harvard. (Mechanism design, market design, behavioral theory.) www.shengwu.li
I've been working on a new tool, Refine, to make scholars more productive. If you're interested in being among the very first to try the beta, please read on. Refine leverages the best current AI models to draw your attention to potential errors and clarity issues in research paper drafts. 1/
Delighted (and honestly a little bit stunned) that our paper “Swap Regret and Correlated Equilibria Beyond Normal-Form Games” was just awarded both the “Best Paper” and “Best Student Paper” at EC! arxiv.org/abs/2502.20229
Swap Regret and Correlated Equilibria Beyond Normal-Form Games
Swap regret is a notion that has proven itself to be central to the study of general-sum normal-form games, with swap-regret minimization leading to convergence to the set of correlated equilibria and...
arxiv.org
Reminder that N player zero-sum games can represent arbitrary (N-1) player games, by the use of a dummy player.
Financial Times@financialtimes.com · last yr.The New York mayoral candidate mistakenly believes the economy is a zero-sum game, writes Michael Strain of the American Enterprise Institute. https://on.ft.com/44IOZe2
With rent control in the news, it’s a good moment to recall the research of @rebeccadiamond.bsky.social and co-authors. They show that strict rent control in San Francisco reduced the availability of rental housing, eventually *raising* rental costs. doi.org/10.1257/aer....
Evicting NSF from their building in Washington is pretty revealing. But if they auction off its History Wall, I know which tile I’d bid on. Here’s the list to choose from… marketdesigner.blogspot.com/2025/06/evic...
Evicting Science from D.C.: the NSF building and it's History Wall
marketdesigner.blogspot.com
A New Pyramid-Like Shape Always Lands the Same Side Up. A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a decades-old conjecture. www.quantamagazine.org/a-new-pyrami...
A New Pyramid-Like Shape Always Lands the Same Side Up | Quanta Magazine
A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a decades-old conjecture.
quantamagazine.org
If AI can't kill radiologists' careers, can it really kill anyone's? www.nytimes.com/2025/05/14/t...
Your A.I. Radiologist Will Not Be With You Soon
nytimes.com
What is common knowledge in your field, but shocks outsiders? If two people have the same priors, and their posteriors for an event A are common knowledge, then those posteriors are equal.
Encephalophatass@encephalophatass.bsky.social · 3y agoWhat is common knowledge in your field, but shocks outsiders? I'll start: Amazon makes more money out of their Cloud services than out of their e-commerce platform.
Re-upping my advice about how to write a good title and abstract for an academic paper, appropriately called: "How to Write a Title and Abstract" Feel free to share this thread, which will focus on titles. #EconSky #AcademicSky
New working paper alert: we provide a model of post-hoc rationalizations, driven by motives of (self-)esteem. We show how this can lead to groupthink, polarization, and a preference for echo chambers. www.ifo.de/sites/defaul...
Our policy is already too long to cover all possible scenarios, I am told (repeatedly...), but it is very clear "access to the data and code is nonexclusive to the authors" in line 1 ... www.aeaweb.org/journals/dat... Need an exception? See line 3, and a discussion w/ editor + me ensues.
Data and Code Availability Policy
aeaweb.org
Maybe journals should have a policy that data from anonymous sources will be verified by the journal before publication. The editor could contact the firm, to verify that it exists and that the study was conducted as stated. @aeadata.bsky.social is this feasible or am I missing something?
In hindsight, if a major material science firm had found a way to make its best material scientists 80% better, there’s no way it would stay anonymous. It would shout it from the rooftops, and put it in its earnings call. This is an argument that should have occurred to economists.
Wow, nothing beats making that one conjecture that turns the idea into a paper, and then proving it. Never gets old.
The Chicago Pope implies the existence of a New Keynesian Pope and a Behavioral Pope
Singapore ministers defend meals taken with money launderer. The perils of zero accountability.
Congrats to Sergiu Hart, perhaps the quickest thinker I know, and a wonderful mentor, coauthor, and person, for being elected as an International Member of the National Academy of Sciences! www.nasonline.org/news/2025-na...
National Academy of Sciences Elects Members and International Members - NAS
WASHINGTON — The National Academy of Sciences announced today the election of 120 members and 30 international members in recognition of their distinguished and continuing achievements in original res...
nasonline.org
Remember when you first learned about genetics at school? All those fascinating examples of human traits that are each apparently determined by just a single gene? Time to check in on some of your favourites to see how they’re doing. 🧬🧵🧪 1/n
Power corrupts. It’s time for Singapore to become a democracy.
Opinion | My Father Founded Singapore. He Would Be Troubled by What It’s Become. (Gift Article)
The nation’s current leaders are not living up to my father’s high standards of governance, and Singapore is suffering as a result.
nytimes.com
💡 Open science: A team of researchers at Shandong University has attempted to replicate Oprea (2024 AER). The results do not replicate. Oprea 2024 reported an online lab experiment, and found that prospect theory anomalies occur not only for lotteries, but also for deterministic 'mirrors'.
My paper on algorithmic pricing, joint with In-Koo Cho, is now online at the Journal of Economic Theory. www.sciencedirect.com/science/arti...
Learning underspecified models
This paper examines learning dynamics under non-parametric model uncertainty. We choose the monopolistic profit maximization problem (Myerson (1981)) …
sciencedirect.com
The Prime Minister faced yet another setback this week as the ongoing scandal over two-way fixed effects produced two more estimators for Canadians to learn. ‘You’re telling me these regressions produced negative weights and the Liberals knew nothing?!” the Conservative Party leader tweeted Sunday
Shengwu Li@shengwuli.bsky.social · last yr.I need the “Campaign in prose. Govern in econometrics.” t-shirt.
I need the “Campaign in prose. Govern in econometrics.” t-shirt.
Eva Vivalt@evavivalt.bsky.social · last yr.Quite the quote.
@lastpositivist.bsky.social Have you considered writing for a broader audience?
Martin D.B. Brown@martindbbrown.bsky.social · last yr.Oh right, sure, well OK then
