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Daniel Rock

@danielrock.bsky.social
2.5K followers 1.1K following 182 posts

Assistant Professor at UPenn/Wharton OID researching economics of AI and productivity. Fan of dogs.

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Reposted by Daniel Rock
Schmidt Sciences @schmidtsciences.bsky.social · 08/09/2025
How will AI reshape jobs—not just replace them? Daniel Rock, 2023 AI2050 Early Career Fellow at Wharton, studies how AI transforms individual tasks within jobs and is building a model to track those shifts. Read the Q&A: ai2050.schmidtsciences.org/community-pe...
ai2050.schmidtsciences.org
Community Perspective - Daniel Rock - AI2050
Rock asks how, and how much, AI technology will impact the many tasks that comprise a given job — each one may be affected to different extents, changing a job in more nuanced ways than completely…
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Daniel Rock @danielrock.bsky.social · 05/08/2025
“They’re eating… the pets”
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Daniel Rock @danielrock.bsky.social · 07/07/2025
gonna drop this platform for a bit. take care everyone.
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Daniel Rock @danielrock.bsky.social · 27/06/2025
Feel like there are a lot of folks on Bluesky who need to read this paper.
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Daniel Rock @danielrock.bsky.social · 23/06/2025
Common AI failure mode is to ask it for what you want in the end. One day that’ll be doable generally… only sometimes it works now. For now ask for code that generates what you want (where applicable). This is true for training ML models too… learn the DGP then transfer to other target/outcome.
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Daniel Rock @danielrock.bsky.social · 31/05/2025
Full automation of code is a choice, and I don’t think it’s one that’ll be made in most firms. By percentage of code written, sure, machines will dominate. but you know what’s complementary to shitloads of new code? Talented developers.
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The Author, Séamas O'Reilly @seamas.bsky.social · 03/05/2024
For those who don't know this story, which I first shared six years ago today.... This one time I got my days wrong at work and ended up alone in a room with my boss and the President of Ireland while I was on ketamine. 🧵
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Harper 🤯 @harper.lol · 27/05/2025
My perspective on vibe coding vs real coding
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Bailey Bowcutt @baileybowcutt.bsky.social · 22/05/2025
I'm a current Harvard graduate student and I found out today that I had my NSF GRFP terminated without notification. I was awarded this individual research fellowship before even choosing Harvard as my graduate school
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Daniel Rock @danielrock.bsky.social · 21/05/2025
“Hitchbot was a literal pile of trash and got what it deserved” Go Birds.
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Daniel Rock @danielrock.bsky.social · 20/05/2025
People don’t realize the reason bond ratings matter is that they’re tied to regulations and policies with margining requirements. You really don’t want the BBB- to BB+ change.
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Daniel Rock @danielrock.bsky.social · 19/05/2025
Shingles is terrible. Get the vaccine… it’s not just a disease older people get.
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Tim Bresnahan @timobres.bsky.social · 18/05/2025
#econsky What do we know about “Artificial Intelligence, Scientific Discovery, and Product Innovation” and about MIT's investigation of this paper, which apparently led to expulsion of its author? And what should we change in response. /1
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John Skiles Skinner @skiles.blue · 14/05/2025
Let's talk about these two department store owners: brother and sister Louis Bamberger and Caroline Bamberger Fuld. From Newark, New Jersey. They are random people, basically. But in the late 1920s, with fascism taking over Europe, they made a choice that profoundly changed the world: 🧵
A photograph of Louis Bamberger, seated on the right, wearing a mustache and bowler hat, and his sister Caroline Bamberger Fuld, standing on the left, wearing a fur hat and shawl
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Grace @gracekind.net · 14/05/2025
Who is this mathematician and why is he using AI to cheat??
Terence tao using claude
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Daniel Rock @danielrock.bsky.social · 15/05/2025
This is fucked and wrong
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Daniel Rock @danielrock.bsky.social · 12/05/2025
With their beady little eyes and flapping heads all full of lies
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Randall Munroe @xkcd.com · 10/05/2025
Globe Safety xkcd.com/3086
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Daniel Rock @danielrock.bsky.social · 09/05/2025
“Ope, he’s da Pope!” (Credit to Liz Mielewocki)
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Arjun Raj @arjunraj.bsky.social · 06/05/2025
While I understand the sentiment, I must disagree. We are already required to do too many different things at a high level. Communicating with the public is not an easy skill and requiring that students be good at it is in some ways another barrier. Instead, make a podcast with NotebookLM!
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Paul Goldsmith-Pinkham @paulgp.com · 29/04/2025
Write it on my tombstone
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Daniel Rock @danielrock.bsky.social · 24/04/2025
This is a fucking unwelcome discussion
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Joshua Gans @joshgans.bsky.social · 15/04/2025
Farewell Pat Bajari. What an amazing legacy he has left opening up the PhD economics path way like no one else has.
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Daryl Fairweather ⛅ @fairweatherphd.bsky.social · 11/04/2025
I'm a little annoyed that Amazon isn't offering prime shipping right now on Hate the Game, but I also know that must mean they are out of stock and resorting to third party sellers, which is a good sign. Hate the Game is in stores so you can get it today! Thanks to everyone who has ordered so far!
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Christopher Mims @mims.bsky.social · 11/04/2025
honestly relieved that 9 of 9 justices were like “randomly grabbing someone for no reason and sending them to a foreign gulag is not, actually, justifiable in our legal system”
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Alex Imas @aleximas.bsky.social · 11/04/2025
Huge huge kudos to @anthropic.com for releasing this detailed overview of how students are using AI. Some pretty concerning trends here, such as students completely off-loading higher-level reasoning to LLM and mostly prompting for direct answers. www.anthropic.com/news/anthrop...
anthropic.com
Anthropic Education Report: How University Students Use Claude
AI systems are no longer just specialized research tools: they’re everyday academic companions. As AIs integrate more deeply into educational environments, we need to consider important questions abou...
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Daniel Rock @danielrock.bsky.social · 10/04/2025
@manuelacollis.bsky.social @clemvaneff.bsky.social this is such great work!
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Daniel Rock @danielrock.bsky.social · 04/04/2025
Lmfao 🤡🤡🤡
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Daniel Rock @danielrock.bsky.social · 04/04/2025
Seeing a lot of cope on here and the bird app about how Trump is gonna change his mind or this is some tactic. This was what he said he would do! He thinks it’s a good idea. Don’t count on a reversal imo.
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Daniel Rock @danielrock.bsky.social · 04/04/2025
You can simply *do* things
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Daniel Rock @danielrock.bsky.social · 03/04/2025
Market moving a year in a day
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Jesse Rothstein @jrothst.bsky.social · 03/04/2025
Six weeks ago I predicted a very negative March jobs report. That report comes out Friday. I no longer think that we will see massive job losses in that report. I still think a recession is coming (and the markets seem finally to be coming to agree with that), but not as quickly as I first thought.
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jpmarindiaz @jpmarindiaz.bsky.social · 30/03/2025
Yesterday I vibe coded from scratch in 4 hours an R package that took me 4 weeks to build a while back
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Daniel Rock @danielrock.bsky.social · 30/03/2025
As bizarre as this seems, there are major limits to interdisciplinary work along these lines. A seminar I used to attend in grad school sometimes would spend the first 20 min of every talk asking the speaker to “justify the philosophical approach”. It’s tedious and unhelpful for learning.
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Andy @rallycap.bsky.social · 27/03/2025
Happy anniversary to one of my all timers from the bad place.
November: I miss baseball 
December: I miss baseball 
January: I miss baseball 
February: I miss baseball 
March: I miss baseball 
April 1st: This f*cking ump
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Brian Gaar @briangaar.bsky.social · 28/03/2025
Excellent work by new NYT headline writer Werner Herzog
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Brent Toderian @brenttoderian.bsky.social · 28/03/2025
Never forget, a 13-year study found that protected bike-lanes led to a drastic decline in fatalities for all road users. ALL ROAD USERS. And painted bike-lanes? No safety improvement at all. For sharrows, it’s actually safer to NOT have them. Via @usa.streetsblog.org @nyc.streetsblog.org
usa.streetsblog.org
Separated Bike Lanes Means Safer Streets, Study Says — Streetsblog USA
Cities that build protected lanes for cyclists end up with safer roads for people on bikes and people in cars and on foot, a new study of 12 large metropolises revealed Wednesday.
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Erik Brynjolfsson @erikbryn.bsky.social · 28/03/2025
IF you want to revolutionize the business world with AI, and you’re excited to work with the best data scientists, economists and ML engineers THEN come join us as a Forward-Deployed Strategist at Workhelix, identifying and measuring the value of AI. job-boards.greenhouse.io/workhelix/jo...
job-boards.greenhouse.io
Forward-Deployed Strategist
Greater San Francisco Area
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Daniel Rock @danielrock.bsky.social · 28/03/2025
Have missed you, baseball
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Ben Collins @bencollins.bsky.social · 25/03/2025
GREAT news everyone! The Onion is hiring! For a bunch of new positions. Sports Editor (yes, we're bringing it back): jobs.gusto.com/postings/the... Entertainment Editor (going harder here too): jobs.gusto.com/postings/the... And a Staff Writer (!): jobs.gusto.com/postings/the... Apply or die!
jobs.gusto.com
Careers at The Onion
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Simon Willison @simonwillison.net · 19/03/2025
Not all AI-assisted programming is vibe coding (but vibe coding rocks) simonwillison.net/2025/Mar/19/...
simonwillison.net
Not all AI-assisted programming is vibe coding, but vibe coding rocks
Vibe coding is having a moment. The term was coined by Andrej Karpathy just a few weeks ago (on February 6th) and has since been featured in the New York …
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Rachael Sirianni, PhD @docsirianni.bsky.social · 15/03/2025
This is horrible to post, but I may as well post it. We are essentially shutting down research operations in my group, which is focused on treatments for pediatric brain cancer. I’m a well funded investigator, and there’s no choice. Science can’t function without the stability of NIH
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csteinwender.bsky.social @csteinwender.bsky.social · 06/03/2025
we are looking for an Associate Professor (tenure track) in applied Economics, pls share: www.timeshighereducation.com/unijobs/list...
timeshighereducation.com
Professorship (W2) of AI in Economics - Munich (City), Bavaria, Germany job with LUDWIG MAXIMILIANS UNIVERSITAET MUENCHEN | 389325
All AI that are relevant to the field of economics under the application of modern statistical methods will be expected to teach courses at all levels
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Simon Proud @simonsat.bsky.social · 07/03/2025
Wonderful view of yesterday's Ariane 6 launch courtesy of the French air force. Not much outruns a fighter jet...but a rocket does just that!
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Catherine Rampell @crampell.bsky.social · 07/03/2025
Ostensibly this is about protecting Jewish students. Given the demographics of Columbia University, I suspect withholding $400m of funding from the institution will hurt a lot more Jews than it helps. www.washingtonpost.com/education/20...
washingtonpost.com
Trump administration cancels $400 million in grants to Columbia University
The Education Department is among several agencies cutting funds to the school for allegedly failing to protect Jewish students from antisemitism on campus.
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Daniel Rock @danielrock.bsky.social · 07/03/2025
This doesn’t make sense. There’s a very big difference between Mitt Romney and Trump.
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Yashar Ali 🐘 @yasharali.bsky.social · 04/03/2025
James Harrison, a blood donor famed for having saved the lives of more than 2 MILLION babies, has died. Harrison’s plasma contained a rare antibody known as Anti-D which was used to manufacture a medication given to expectant mothers. Harrison donated plasma every two weeks from age 18-81
bit.ly
James Harrison, blood donor whose rare plasma saved millions of babies, dead at 88 | CNN
James Harrison, a prolific Australian blood donor famed for having saved the lives of more than two million babies, has died at age 88.
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Ethan Mollick @emollick.bsky.social · 03/03/2025
Randomized trial AI for legal work finds Reasoning models are a big deal: Law students using o1-preview had the quality of work on most tasks increase (up to 28%) & time savings of 12-28% There were a few hallucinations, but a RAG-based AI with access to legal material reduced those to human level
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