Ulrich Atz

Ulrich Atz

@ulrichatz.org

Professor (Asst) at Bocconi U - NYU Stern Center for Sustainable Business - data and sustainability

79 followers139 following116 posts

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One more R coding skill for the pile: tidy-r. It includes all the cool new functions of dplyr 1.2! It also hooks into the r-btw MCP server for live docs, or falls back to R help when it's not available. You can install it in one line. 📦 #rstats #claudecode #codex github.com/statzhero/tidy-r-skill

github.comGitHub - statzhero/tidy-r-skill: An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+.An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+. - statzhero/tidy-r-skill

Amazing resource, and freely available with a NC license.

Aki Vehtari@avehtari.bsky.social

All four books I've co-authored are freely available online for non-commercial use: - Bayesian Workflow at avehtari.github.io/Bayesian-Wor... Links to other three books are in the quoted post 👇 (too many books to fit in one post!)

I'm giving a brownbag seminar on "Accounting Research in the Twenty-First Century" at NC State University today, and I have summarized the talk for everyone else with this handy graphic...

The paper behind it: we analyze the full text of 19,000+ articles in top accounting, finance, and economics journals to measure how quickly accounting adopts new methods and research designs.

Thanks a lot to Nathan Goldman for being a stellar host, and to my co-authors Tim Martens and Kasper Regenburg for putting up with my never-ending asks to do more. Working paper soon, we hope. Stay tuned!

This game was absolute chaos. You need to know that the goal also meant Algeria would face Spain instead of Switzerland next, and they knew it.

John Muller@johnspacemuller.com

Okay here's the entire Algeria possession 5 minutes and 34 seconds of completely uncontested midfield possession 109 completed passes And then they scored a goal

Congratulations to the R Core Team and the five named laureates; I’m happy for them and everyone who supports the amazing #rstats community. Bravo! 👏

The R Foundation@r-foundation.bsky.social

The 2026 Rousseeuw Prize for Statistics has been awarded to the R Project. #RStats www.rousseeuwprize.org/2026

If you reprice $TSLA and $SPCX at reasonable, even generous, growth-company multiples, you get a net worth around $350B. Is that a reasonable amount for one person to have? No. Does the exact number matter much in the grander scheme of problems? Also no.

Financial Times@financialtimes.com

SpaceX's 11% share price boost has made Elon Musk the world's first trillionaire, controlling two of the world's largest companies. ft.trib.al/r8K3jYL

And the new compact bar icons for #Positron, which I much appreciate. 🙌

Julia Silge@juliasilge.com

The latest release of #Positron went out last week, and I am so pleased to share some of what's in it! 🙌 Read about how we improved startup performance, the ongoing migration from Positron Assistant to Posit Assistant, and more: opensource.posit.co/blog/2026-06...

What’s going on in this chart? Accounting and finance sit in a strange upper-right quadrant: jobs are available, but fields are highly exposed to AI. Are firms just slow to adapt, or do entry roles fulfill a different purpose vs. IT? Gift link below: www.economist.com/finance-and-... #AI #jobs

oof what happened to ebay? If you pay $100 for something shipped from New York, the seller might only keep around two thirds, so $66, after sales tax, shipping, and fees. What a haircut, feels like #ebay is cooked

One more R coding skill for the pile: tidy-r. It includes all the cool new functions of dplyr 1.2! It also hooks into the r-btw MCP server for live docs, or falls back to R help when it's not available. You can install it in one line. 📦 #rstats #claudecode #codex github.com/statzhero/tidy-r-skill

github.comGitHub - statzhero/tidy-r-skill: An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+.An LLM skill for modern tidyverse R using R 4.5+, tidyverse 2.0+, and dplyr 1.2+. - statzhero/tidy-r-skill

tidy-r now covers the dplyr 1.1.0 change where if_else() and case_when() accept plain NA. Personally the `NA_character_`, `NA_real_`, etc. always bother me somewhat...

🐴🪽☀️

cee@cee.wtf

ive been using --dangerously-skip-permissions every day since day 1 of claude code and nothing dangerous has happened yet

One takeaway from the paper is that disclosure is necessary but not sufficient: Franchise Disclosure Documents make these restraints visible, but they do not undo switching costs,hold-up, or post-term noncompetes. The FTC's Franchise Rule emphasizes disclosure over substantive regulation.

Marshall Steinbaum@econmarshall.bsky.social

🚨🚨Revised paper 🚨🚨 The Balance of Power in Franchising w/@ulrichatz.org, Blake Eliason, @mikelipsitz.bsky.social, @pnorlander.bsky.social, & @stpinto.bsky.social. We built the 1st comprehensive panel dataset of franchise contract terms: 46,000 documents, 4,500 chains, 20+ provisions, 2009-2024. /1

New game: guess the prompt. "Let's delve into the intricate tapestry of nuanced insights, meticulously woven together to robustly underscore the multifaceted landscape of innovation — not merely showcasing transformative synergies, ...

... but also unlocking a rich, holistic ecosystem of stakeholder-driven paradigms, ultimately catalyzing a deeper understanding of what it truly means to navigate this ever-evolving journey."

Some juicy prizes for an essay.

Julia M. Rohrer@dingdingpeng.the100.ci

Do you have any thoughts on systemic bottlenecks in science and how to fix them? Astera is running an essay competition! astera.org/essay-compet...

Ulrich Atz reposted

Opening for a tenure track position in statistical computing: wirtschaftsuniversitaet-wien-portal.rexx-systems.com/Assistant-Pr... As dept chair, R Core member Kurt Hornik invites applications from people who could make substantial contributions to #RStats, including base R. Deadline Mar 18!

wirtschaftsuniversitaet-wien-portal.rexx-systems.comJob opportunity Assistant Professor, tenure track, qualification agreement at Wirtschaftsuniversität Wien Jobportalothers in Wien

and "An interesting aspect of the kratt is that it was necessary for it to constantly keep working, otherwise it would turn dangerous to its owner."