Today I gave my first webinar, to the CFM Chair of Econophysics and Complex Systems (M. Benzaquen and J.P. Bouchaud), on my work on business cycles (slides: drive.google.com/file/d/18fIVCp…). Nice experience, the strangest part was not understanding who was asking questions (cameras off)!

🚨 After our recent study revealed Meta's flawed moderation of political ads, enabling massive foreign interference weeks ahead of the elections, the EU Commission is launching an investigation into potential Digital Services Act violations.

It is my pleasure to announce that the King's Mathematical Colloquia go public🙂
If you are in London, you can join us in person via mathematicscolloquia.eventbrite.co.uk. Otherwise, join online using tinyurl.com/2p8sfk4w
On April 28th, we will host J.P. Bouchaud (ENS/CFM).
King's Mathematics

Hey Meta, why don't you apply your moderation decisions systematically across duplicated ads ? Your lax enforcement of your own advertisement policies allows pro-Kremlin propaganda ads to be run weeks ahead of the EU elections

Hey Meta, what measures are you implementing to prevent foreign interference ? There appears to be room for improvement in your detection of coordinated inauthentic behaviors. #DSA

New week, new pro-Kremlin narratives just approved by Meta. Claiming 'been preparing for the EU Parliament elections for a long time' does not seem to be enough to guarantee the integrity of elections.

Meta In 10 days, Meta delivered this single pro-Kremlin ad to over 280k accounts, without political disclaimer, and it's still running. Seems like Meta's 'well-established process for identifying and mitigating risks' could be upgraded.

I am pleased to announce a two-day workshop we are organising in May together with Giulio Biroli, J.-P. Bouchaud, and other young collaborators, at the interface between 'Ecology & Economics'. For more details, have a look at the flyer👇

Hey Meta, why did you just approve these pro-Kremlin propaganda ads to be run without a political disclaimer ? Are your systems fooled by a simple nickname to designate Emmanuel Macron ?

Our March newsletter is out with 2 fantastic papers by our #instability hub co-leads J.P. Bouchaud & Roger E. A. Farmer

- Self-Fulfilling Prophecies, Quasi Non-Ergodicity & Wealth Inequality
- Tatonnement, Equilibrium & Excess Volatility in Firm Networks

mailchi.mp/561aad90fca6/r…

Hey Meta France, comment ces publicités de propagande pro-russe peuvent-elles échapper à vos systèmes de modération des publicités politiques ? #DSA

Meta Meta considers the content of this ad to be against their Advertising Standards, yet this pro-Kremlin propaganda ad has been shown to 252,528 accounts, and is still running.

J.P. Bouchaud quoting Keynes:
In the long run, we all are dead

In radical complexity, radical uncertainty and bounded rationality, #ccs2022

経済物理はグループ毎にやっていることが大分違う（これは学問的にはあまりよくないと思う）ので，全容を把握することはかなり難しいと思う．．．今読むなら，J.-P. Bouchaudの最近の教科書を読むのが良いと僕は思います（market microstructureしか扱ってませんが）．
amazon.com/Trades-Quotes-…

It's not even a tech issue, with the little information publicly available, I'm able to detect pro-Russian ads approved by Meta in real-time. Just 6 weeks from the EU Elections, Meta seems, once again, unwilling to protect its users and the integrity of elections.

Programme
2:00 Ouverture, MC Lemardelay
2:10 Les mille vies de l’équation de Langevin, J.P Bouchaud
2:40 Langevin, de l’invention du Sonar à l’imagerie médicale, M. Fink
3:10 Langevin physicien, inventeur et humaniste militant, B Bensaude-Vincent
3:40 M. Graña
4:10 C. Deffayet

arxiv.org/abs/1809.02205…
J P Bouchaud, M Potters
Two short pieces around the Wigner problem

Read more about it, in our report: aiforensics.org/work/meta-poli…

We are pleased to invite you to the Sloan Conference on Price Regimes
2 February 2022
FROM MICROSCOPIC MODELS TO ROUGH MACROSCOPIC MODELS
Speakers:
J. P. Bouchaud (Capital Management Fund/ENS)
M. Rosenbaum (École Polytechnique)
C. Cuchiero (U. Vienna)
bit.ly/3u2HGvJ

New paper with Léo Fitouchi, J.-P. Bouchaud & M. Benzaquen, out today in Scientific Reports! We search to answer the question: why does individual learning endure when social learning is more efficient? A 🧵 to give a flavour of our model.
nature.com/articles/s4159…