Joshua Gans
@joshgans.bsky.social
Professor at University of Toronto
Very glad to see this finally announced. Was very much at the heart of this recruiting and really looking forward to Jacquelyn Pless and Mark Duggan joining the UT community. www.theglobeandmail.com/canada/educa...
U of T hires three top U.S. scholars, plans for 100 new postdocs
New hires include Canadian-born MIT astrophysicist Sara Seager
www.theglobeandmail.com
November 12, 2025 at 2:03 PM
Very glad to see this finally announced. Was very much at the heart of this recruiting and really looking forward to Jacquelyn Pless and Mark Duggan joining the UT community. www.theglobeandmail.com/canada/educa...
It can be confusing for people when all the rooms are decorated the same way to find the right one.
November 5, 2025 at 4:15 PM
It can be confusing for people when all the rooms are decorated the same way to find the right one.
Folks, this is a hot deal. Try out refine.ink and you (and I) get a free review if you use the referral code refine.ink?ref=am9zaHVh... I'm telling you, it is worth it. You'll save at minimum one round of journal submissions.
refine
AI feedback for research.
www.refine.ink
November 4, 2025 at 1:58 PM
Folks, this is a hot deal. Try out refine.ink and you (and I) get a free review if you use the referral code refine.ink?ref=am9zaHVh... I'm telling you, it is worth it. You'll save at minimum one round of journal submissions.
Reposted by Joshua Gans
Australian scientist who alerted world that COVID is airborne wins top science prize
When the WHO falsely claimed in March 2020 that COVID wasn’t airborne, Professor Lidia Morawska took action—organising 239 scientists worldwide to warn about SARS-CoV-2 airborne spread and urge global recognition.
When the WHO falsely claimed in March 2020 that COVID wasn’t airborne, Professor Lidia Morawska took action—organising 239 scientists worldwide to warn about SARS-CoV-2 airborne spread and urge global recognition.
Australian scientist who alerted world that Covid is airborne wins top science prize
Prof Lidia Morawska says recognition of her research comes at a fraught time – an ‘age of anti-science’
www.theguardian.com
November 4, 2025 at 12:02 AM
Australian scientist who alerted world that COVID is airborne wins top science prize
When the WHO falsely claimed in March 2020 that COVID wasn’t airborne, Professor Lidia Morawska took action—organising 239 scientists worldwide to warn about SARS-CoV-2 airborne spread and urge global recognition.
When the WHO falsely claimed in March 2020 that COVID wasn’t airborne, Professor Lidia Morawska took action—organising 239 scientists worldwide to warn about SARS-CoV-2 airborne spread and urge global recognition.
I wonder if I can get away with using this quote in my "Flooding the Zone" paper?
Obama: "The weird videos of a US president with a crown on his head flying a fighter jet & dumping poop on American citizens - that's not even worth booing about. Because all of that is a distraction from the fact that your situation, your life has not gotten better. They do it so you won't notice"
November 2, 2025 at 9:18 PM
I wonder if I can get away with using this quote in my "Flooding the Zone" paper?
Quite amazing
November 1, 2025 at 12:46 AM
Quite amazing
Me: I am having trouble understanding the baseball excitement.
Colleague: its great for Toronto!
M: how many of the Blue Jays are from Toronto?
C: None. It's great for Canada!
M: how many are from Canada?
C: Umm, 1.
Colleague: its great for Toronto!
M: how many of the Blue Jays are from Toronto?
C: None. It's great for Canada!
M: how many are from Canada?
C: Umm, 1.
October 24, 2025 at 10:59 AM
Me: I am having trouble understanding the baseball excitement.
Colleague: its great for Toronto!
M: how many of the Blue Jays are from Toronto?
C: None. It's great for Canada!
M: how many are from Canada?
C: Umm, 1.
Colleague: its great for Toronto!
M: how many of the Blue Jays are from Toronto?
C: None. It's great for Canada!
M: how many are from Canada?
C: Umm, 1.
Here is the full Reagan speech from the Reagan Presidential LIbrary that have the Americans so upset last night. www.youtube.com/watch?v=5t5Q...
President Reagan's Radio Address on Free and Fair Trade on April 25, 1987
YouTube video by Reagan Library
www.youtube.com
October 24, 2025 at 10:33 AM
Here is the full Reagan speech from the Reagan Presidential LIbrary that have the Americans so upset last night. www.youtube.com/watch?v=5t5Q...
Autopen?
COLLINS: Today you pardoned the founded of Binance. Can you explain why you did that?
TRUMP: Which one was that?
COLLINS: The founder of Binance
TRUMP: I believe we're talking about the same person, because I do pardon a lot of people. I don't know. He was recommended by a lot of people.
TRUMP: Which one was that?
COLLINS: The founder of Binance
TRUMP: I believe we're talking about the same person, because I do pardon a lot of people. I don't know. He was recommended by a lot of people.
October 23, 2025 at 8:31 PM
Autopen?
I have to admit that it is a bold strategy to ask to be Venmoed $1 from every voting-eligible American, to apologise for the outcome of the 2020 election.
October 22, 2025 at 3:21 PM
I have to admit that it is a bold strategy to ask to be Venmoed $1 from every voting-eligible American, to apologise for the outcome of the 2020 election.
New paper by Rivera Mora & @philippstrack.bsky.social Strack challenges everything we thought we knew about mechanism design beyond expected utility. The results are wild. 🤯
Paper: "Mechanism Design Beyond Expected Utility Preferences" (Sept 2025) static1.squarespace.com/static/62d2f...
Paper: "Mechanism Design Beyond Expected Utility Preferences" (Sept 2025) static1.squarespace.com/static/62d2f...
static1.squarespace.com
October 21, 2025 at 11:54 AM
New paper by Rivera Mora & @philippstrack.bsky.social Strack challenges everything we thought we knew about mechanism design beyond expected utility. The results are wild. 🤯
Paper: "Mechanism Design Beyond Expected Utility Preferences" (Sept 2025) static1.squarespace.com/static/62d2f...
Paper: "Mechanism Design Beyond Expected Utility Preferences" (Sept 2025) static1.squarespace.com/static/62d2f...
Well it’s true that George Santos is more entertaining on the outside.
October 17, 2025 at 11:24 PM
Well it’s true that George Santos is more entertaining on the outside.
Destroying Dan Brown's job.
BREAKING: Pope Leo XIV is set to effectively disband Opus Dei in the coming weeks.
This would be the most sweeping internal reform of his pontificate — and a dramatic continuation of Pope Francis’s legacy.
This would be the most sweeping internal reform of his pontificate — and a dramatic continuation of Pope Francis’s legacy.
NEW: Pope Leo Set To Break Up Opus Dei
If Pope Leo does indeed approves a plan that effectively dissolves Opus Dei’s structure, it would be the most significant internal action of his short pontificate to date.
open.substack.com
October 17, 2025 at 11:54 AM
Destroying Dan Brown's job.
Joel Mokyr won a Nobel prize today for showing that it isn’t enough to have inventions that work. You have to know how they work to have sustained growth. Think about that when you hear AI scientists continue to speculate but aren’t sure as to how generative AI models work.
October 13, 2025 at 1:21 PM
Joel Mokyr won a Nobel prize today for showing that it isn’t enough to have inventions that work. You have to know how they work to have sustained growth. Think about that when you hear AI scientists continue to speculate but aren’t sure as to how generative AI models work.
Reposted by Joshua Gans
AI is apparently already accelerating science as a co-intelligence.
Measuring academic publications of authors: “we find that productivity among GenAI users rose by 15 percent in 2023 relative to non-users and further increased to 36 percent in 2024” and the quality of publications also went up.
Measuring academic publications of authors: “we find that productivity among GenAI users rose by 15 percent in 2023 relative to non-users and further increased to 36 percent in 2024” and the quality of publications also went up.
October 11, 2025 at 6:07 PM
AI is apparently already accelerating science as a co-intelligence.
Measuring academic publications of authors: “we find that productivity among GenAI users rose by 15 percent in 2023 relative to non-users and further increased to 36 percent in 2024” and the quality of publications also went up.
Measuring academic publications of authors: “we find that productivity among GenAI users rose by 15 percent in 2023 relative to non-users and further increased to 36 percent in 2024” and the quality of publications also went up.
I just received a rejection from a top journal and I am pleased. Let me explain as it is a testament to our system of peer review.
October 10, 2025 at 1:04 PM
I just received a rejection from a top journal and I am pleased. Let me explain as it is a testament to our system of peer review.
Reposted by Joshua Gans
The other day a student asked me about the prevalence of insider trading in prediction markets. I now have an answer.
October 10, 2025 at 11:19 AM
The other day a student asked me about the prevalence of insider trading in prediction markets. I now have an answer.
Just over 10 days left to apply to join our area at Rotman. jobs.utoronto.ca/job/Toronto-...
Assistant Professor - Strategic Management
Assistant Professor - Strategic Management
jobs.utoronto.ca
October 9, 2025 at 2:01 PM
Just over 10 days left to apply to join our area at Rotman. jobs.utoronto.ca/job/Toronto-...
It has arrived. Out in December. Cover by me with ChatGPT assistance.
October 7, 2025 at 11:52 AM
It has arrived. Out in December. Cover by me with ChatGPT assistance.
This is one of the features we are most excited about. Took a year of development but it is the foundation for winning students back from ChatGPT to learning again. Take a look. Available to institutional subscribers right now.
Introducing Intelligent Quiz
AI-generated quizzes based on your exact course content that help students figure out their mistakes in real time.
Learn more at: alldayta.com/intelligent-quiz
AI-generated quizzes based on your exact course content that help students figure out their mistakes in real time.
Learn more at: alldayta.com/intelligent-quiz
October 2, 2025 at 2:58 PM
This is one of the features we are most excited about. Took a year of development but it is the foundation for winning students back from ChatGPT to learning again. Take a look. Available to institutional subscribers right now.
So I tried it out now on Laffont, Rey and Tirole (RJE, 1998b) which has a (big) error in Prop 5. Gemini found it, doubted itself and when I pushed confirmed it. Claude missed it but found it when I asked. Gpt-5-pro failed even when asked specifically.
September 30, 2025 at 7:40 PM
So I tried it out now on Laffont, Rey and Tirole (RJE, 1998b) which has a (big) error in Prop 5. Gemini found it, doubted itself and when I pushed confirmed it. Claude missed it but found it when I asked. Gpt-5-pro failed even when asked specifically.
Back in graduate school, Paul Milgrom asked me to examine a published paper from 1984 by another person that he suspected had an incorrect proof. I found the error. I decided to see if LLMs could. Only Gemini 2.5 Pro did so. Claude Opus and GPT-5-pro found no significant errors.
September 30, 2025 at 6:58 PM
Back in graduate school, Paul Milgrom asked me to examine a published paper from 1984 by another person that he suspected had an incorrect proof. I found the error. I decided to see if LLMs could. Only Gemini 2.5 Pro did so. Claude Opus and GPT-5-pro found no significant errors.
The videos from the NBER Economics of Transformative AI conference are well worth your time. www.nber.org/conferences/...
Economics of Transformative AI Workshop, Fall 2025
www.nber.org
September 30, 2025 at 12:39 PM
The videos from the NBER Economics of Transformative AI conference are well worth your time. www.nber.org/conferences/...
Talk on my latest paper with Ajay Agrawal and Avi Goldfarb, "Genius on Demand" youtu.be/by7k-H7sZ8A?...
2025, Economics of Transformative AI Workshop, "Genius on Demand: The Value of Transformative..."
YouTube video by NBER
youtu.be
September 30, 2025 at 12:37 PM
Talk on my latest paper with Ajay Agrawal and Avi Goldfarb, "Genius on Demand" youtu.be/by7k-H7sZ8A?...
The radiologists are doing well. My latest. open.substack.com/pub/joshuaga...
Radiologists are the canaries in a coal mine
... because they are thriving
open.substack.com
September 26, 2025 at 2:24 PM
The radiologists are doing well. My latest. open.substack.com/pub/joshuaga...