Arnab Bhattacharjee

@econarnab.bsky.social

Prof Econ @ebs-hwu.bsky.social, Res Lead NIESR @niesrorg.bsky.social, Committee MMF Money Macro Fin Soc
4-gen migrant, 1-gen grad
Ex CB, cricket. Now: Films, ancient music
"Patterns without Structure aid neither Change nor Policy." Usual disclaimer. .. more

Videos

Economics 80%

Mathematics 10%

Posts Replies Media Videos

Reposted by Arnab Bhattacharjee

National Institute of Economic and Social Research @niesrorg.bsky.social · Mar 26

"With no substantial initiatives targeting low-income households, the living standards and living conditions of the working poor will continue to stagnate."

Our @econarnab.bsky.social on the #SpringStatement and UK living standards 🏘👇

10/n 🧵

Reposted by Arnab Bhattacharjee, Giulia Mascagni

Justin Wolfers @justinwolfers.bsky.social · Mar 19

If econ memes had a Nobel Prize, @khoavuumn.bsky.social would have won it by popular acclaim. He's beloved in our community of online economists for his kindness and wit. Definite follow.

Reposted by Arnab Bhattacharjee

National Institute of Economic and Social Research @niesrorg.bsky.social · Mar 6

Our Living Standards event is in one week! ⏰

We'll hear from expert panelists @helenbarnard.bsky.social, Elizabeth Campbell, Tim Leunig and our @maxmosley.bsky.social, chaired by ITV's Joel Hills 👏💬

Sign up here ⬇ @trusselluk.bsky.social @lsepublicpolicy.bsky.social
niesr.ac.uk/event/why-ar...

Reposted by Arnab Bhattacharjee

National Institute of Economic and Social Research @niesrorg.bsky.social · Feb 20

OUT NOW! Our Latest NIER Issue: Climate Sustainability 🌱📃

Volume 266 is introduced by our @econarnab.bsky.social & Adrian Pabst and @uniofstandrews.bsky.social's J. Roderick McCrorie ✍

Read their article "#Climate Sustainability - Evidence and Policy" here ⬇🔓
www.cambridge.org/core/journal...

Reposted by Arnab Bhattacharjee

National Institute of Economic and Social Research @niesrorg.bsky.social · Feb 14

And finally, over to @econarnab.bsky.social to present our outlook for the #DevolvedNations, English Regions and UK #households 💬

Arnab starts with key messages on living standards ⬇

For the bottom 20% of households, living standards will not return to 2021-22 levels before 2027 🏘

11/n

Reposted by Arnab Bhattacharjee

National Institute of Economic and Social Research @niesrorg.bsky.social · Feb 14

The Forum has begun! 🎬Keep following this thread for updates 🧵

Don't forget that our UK Economic Outlook is now available to read in full ⬇⚡

niesr.ac.uk/publications...

#UKEconomy #GlobalEconomy #EconTwitter
@RoyalEconSoc

1/n

Reposted by Arnab Bhattacharjee

National Institute of Economic and Social Research @niesrorg.bsky.social · Feb 11

Our UK Economic Outlook will be published tomorrow! ⚡ A comprehensive forecast on the #UKeconomy in 2025 and beyond 📊

In the meantime, don't miss this blog, where @econstevem.bsky.social asks Benjamin Caswell for an overview as to what we might expect to see in it 📈👇
niesr.ac.uk/blog/outlook...

Outlook for the UK Economy: Growth, Inflation and Fiscal Challenges - NIESR

Our Quarterly UK Economic Outlook will be published later this week, providing a comprehensive forecast on the UK economy in 2025 and beyond. In this Monday Interview, our Interim Director, Stephen Mi...

niesr.ac.uk

Reposted by Andreas Kotsadam, Arnab Bhattacharjee

Colin Camerer @cfcamerer.bsky.social · Feb 7

This comment reanalyzes data from Oprea (2014) and draws different conclusions. What should AER do? papers.ssrn.com/sol3/papers.cf…

1️⃣ <a href="https://poll.blue/p/PhcYuC/1" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Retract original
2️⃣ <a href="https://poll.blue/p/PhcYuC/2" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Publish whole comment (37 pp)
3️⃣ <a href="https://poll.blue/p/PhcYuC/3" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Publish shorter comment
4️⃣ <a href="https://poll.blue/p/PhcYuC/4" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Do nothing

📊 Show results

Reposted by Arnab Bhattacharjee

Eoin McLaughlin @eoinaldo.bsky.social · Feb 4

Great piece on model collapse - the output passed the LGTM test (looks good to me) but has errors. This output then trains further LLMs and then weakens LLMs and ultimately the model collapses (garbage in, garbage out)
open.substack.com/pub/garymarc...

Deep Research, Deep Bullshit, and the potential (model) collapse of science

Sam Altman’s hype might just bite us all in the behind

open.substack.com

Reposted by Mark E. Schaffer, Arnab Bhattacharjee

ArXiv Paperboy (Stat.ME+Econ.EM) @paperposterbot.bsky.social · Jan 31

link 📈🤖
Univariate-Guided Sparse Regression (Chatterjee, Hastie, Tibshirani) In this paper, we introduce ``UniLasso'' -- a novel statistical method for regression. This two-stage approach preserves the signs of the univariate coefficients and leverages their magnitude. Both of these properties ar

Reposted by Arnab Bhattacharjee

NBER @nber.org · Jan 28

Firms struggle to forecast, often making over-optimistic inaccurate forecasts. Running a 5-year 6,000 firm experiment finds that simple data interventions can yield large improvements, from Nicholas Bloom, Mihai A. Codreanu, and Robert A. Fletcher https://www.nber.org/papers/w33384

Reposted by John D. Turner, Arnab Bhattacharjee, Thor Berger

Chris Colvin @cliochris.bsky.social · Jan 28

New working paper alert: "Financing Innovation: The Role of Patent Examination". @steve-bill-econ.bsky.social, Christopher Coyle and I have been working on this for quite a while now. We are excited to have a full draft for your enjoyment! www.quceh.org.uk/uploads/1/0/...