Daniel Rock
@danielrock.bsky.social
Assistant Professor at UPenn/Wharton OID researching economics of AI and productivity. Fan of dogs.
Reposted by Daniel Rock
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...
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...
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…
ai2050.schmidtsciences.org
September 8, 2025 at 6:16 PM
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...
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...
“They’re eating… the pets”
Denmark zoo asks people to donate unwanted pets as food for its predators
Denmark zoo asks people to donate unwanted pets as food for its predators
A zoo in Denmark is asking for unwanted pets to be donated - not for further care but as food for its predators.
news.sky.com
August 5, 2025 at 12:21 AM
“They’re eating… the pets”
gonna drop this platform for a bit. take care everyone.
July 7, 2025 at 4:15 PM
gonna drop this platform for a bit. take care everyone.
Feel like there are a lot of folks on Bluesky who need to read this paper.
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....
They show that strict rent control in San Francisco reduced the availability of rental housing, eventually *raising* rental costs.
doi.org/10.1257/aer....
June 27, 2025 at 12:44 AM
Feel like there are a lot of folks on Bluesky who need to read this paper.
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.
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.
Point is...
1. Don't trust AI to run even the most basic statistical things (yes, yes I knew that already, but then you get told you must use this stuff, and then...).
2. Don't rush to post things to social media, it creates dumb and embarrassing situations like this one.
1. Don't trust AI to run even the most basic statistical things (yes, yes I knew that already, but then you get told you must use this stuff, and then...).
2. Don't rush to post things to social media, it creates dumb and embarrassing situations like this one.
June 23, 2025 at 3:43 PM
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.
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.
Reposted by Daniel Rock
This is a common phenomenon that's not unique to this site. As a reporter, I post things about antisemitism in America as part of my job. The posts do not mention Israel. I will nonetheless get many reflexive replies saying "anti-Zionism is not antisemitism." These people are telling on themselves.
This is a post from a Jewish politician condemning rising antisemitism in the US, saying nothing about anti-Zionism or Israel. And yet the replies are entirely full of people preemptively jumping in to say, “criticizing Israel is not antisemitism! Being anti-Zionist is not antisemitic!”
Today marks the end of Jewish American Heritage Month, Illinois.
I won't be silent in the face of a continuing record rise of antisemitism in our nation.
There is strength in our faith, and we can always find strength in one another.
I won't be silent in the face of a continuing record rise of antisemitism in our nation.
There is strength in our faith, and we can always find strength in one another.
June 1, 2025 at 11:34 PM
This is a common phenomenon that's not unique to this site. As a reporter, I post things about antisemitism in America as part of my job. The posts do not mention Israel. I will nonetheless get many reflexive replies saying "anti-Zionism is not antisemitism." These people are telling on themselves.
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.
Again, I don't think it's at all obvious what AI is going to do to the economy but on my very specific hobby horse: it's darkly funny how quickly we've gone from "mobilize schools to meet the economy's unfathomable appetite for computer scientists" to "tough luck coders we have AI now".
EXCLUSIVE: Anthropic CEO Dario Amodei has a blunt, scary warning: AI could wipe out half of entry-level white-collar jobs and spike unemployment to 10-20% in the next 1-5 years.
Few are paying attention: Politicians don't get it. CEOs are afraid to talk about it.
Few are paying attention: Politicians don't get it. CEOs are afraid to talk about it.
May 31, 2025 at 2:57 PM
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.
Reposted by Daniel Rock
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.
🧵
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.
🧵
May 3, 2024 at 10:25 AM
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.
🧵
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.
🧵
Reposted by Daniel Rock
My perspective on vibe coding vs real coding
May 27, 2025 at 2:50 AM
My perspective on vibe coding vs real coding
Reposted by Daniel Rock
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
May 22, 2025 at 9:38 PM
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
“Hitchbot was a literal pile of trash and got what it deserved”
Go Birds.
Go Birds.
The team at Harvard's insight and interaction lab says this is due to RL-induced guardrails specific to Chargers fans, but I bet ChatGPT knows what Philadelphians do to robots they don't like. aclanthology.org/2024.emnlp-m...
May 21, 2025 at 7:38 PM
“Hitchbot was a literal pile of trash and got what it deserved”
Go Birds.
Go Birds.
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.
You really don’t want the BBB- to BB+ change.
(Bloomberg) - Hong Kong’s pension fund managers have flagged the risk of potential forced selling on their Treasury holdings after a downgrade by Moody’s Ratings of US debt, according to people familiar with the matter.
@bloomberg.com
www.bloomberg.com/news/article...
@bloomberg.com
www.bloomberg.com/news/article...
May 20, 2025 at 10:53 PM
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.
You really don’t want the BBB- to BB+ change.
Shingles is terrible. Get the vaccine… it’s not just a disease older people get.
having shingles on my left arm and hand is just as awesome as you would imagine
May 19, 2025 at 1:20 AM
Shingles is terrible. Get the vaccine… it’s not just a disease older people get.
Reposted by Daniel Rock
#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
May 18, 2025 at 5:24 PM
#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
Reposted by Daniel Rock
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: 🧵
They are random people, basically. But in the late 1920s, with fascism taking over Europe, they made a choice that profoundly changed the world: 🧵
May 14, 2025 at 4:41 AM
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: 🧵
They are random people, basically. But in the late 1920s, with fascism taking over Europe, they made a choice that profoundly changed the world: 🧵
Reposted by Daniel Rock
Who is this mathematician and why is he using AI to cheat??
May 14, 2025 at 7:40 AM
Who is this mathematician and why is he using AI to cheat??
This is fucked and wrong
This is horrific: The Trump administration wants to send a Harvard scientist back to Russia--and hence most likely to a gulag for criticizing Putin's war against Ukraine--for failing to declare samples of frog embryos that she was carrying from France to Harvard.
The Trump administration intends to deport a Harvard scientist back to Russia, government lawyers told a federal judge on Wednesday. The scientist fled the country in 2022 and fears she will be arrested there over her protest of Russia’s war in Ukraine.
May 15, 2025 at 12:08 AM
This is fucked and wrong
With their beady little eyes and flapping heads all full of lies
Kevin Hassett blames Canada for tensions with Trump: "Canada kept making it worse and worse with their rhetoric."
May 12, 2025 at 9:47 PM
With their beady little eyes and flapping heads all full of lies
Reposted by Daniel Rock
“Ope, he’s da Pope!” (Credit to Liz Mielewocki)
May 9, 2025 at 2:51 AM
“Ope, he’s da Pope!” (Credit to Liz Mielewocki)
Reposted by Daniel Rock
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!
A hot take?
1) When society invests $500K in a PhD student's education, that student should be able to speak coherently about how their work/thesis benefits society.
2) As educators, we are falling short of training them how to do that well.
1) When society invests $500K in a PhD student's education, that student should be able to speak coherently about how their work/thesis benefits society.
2) As educators, we are falling short of training them how to do that well.
May 5, 2025 at 11:59 PM
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!
Reposted by Daniel Rock
Write it on my tombstone
April 29, 2025 at 3:06 AM
Write it on my tombstone
This is a fucking unwelcome discussion
SCOOP: Trump's Equal Opportunity office is investigating Barnard's employment practices. Professors received texts to their personal phones on Monday, linking to a survey asking if they were Jewish and if they had been subjected "unwelcome discussions" theintercept.com/2025/04/23/t...
Trump EEOC Texted College Professors’ Personal Phones to Ask If They Were Jewish
“Barnard was not given advance notice of this outreach,” the college’s general counsel wrote in an email to faculty.
theintercept.com
April 24, 2025 at 1:37 AM
This is a fucking unwelcome discussion
Reposted by Daniel Rock
Farewell Pat Bajari. What an amazing legacy he has left opening up the PhD economics path way like no one else has.
April 15, 2025 at 9:38 PM
Farewell Pat Bajari. What an amazing legacy he has left opening up the PhD economics path way like no one else has.