Jeroen Mahieu
@jmahieu.bsky.social
Assistant professor at Utrecht University School of Economics || Economics of Entrepreneurship
One clear pattern that is emerging from students’ #LLM usage for their papers is that they all rely on the same theories. Like 90% uses the “resource-based view” of the firm. Before, they often relied on weird exotic frameworks, but now it has all become so boring and repetitive
July 8, 2025 at 11:41 AM
One clear pattern that is emerging from students’ #LLM usage for their papers is that they all rely on the same theories. Like 90% uses the “resource-based view” of the firm. Before, they often relied on weird exotic frameworks, but now it has all become so boring and repetitive
Reposted by Jeroen Mahieu
On the verge of declaring defeat with chatgpt in my asynchronous online dataviz class. Something changed this semester compared to past ones and SO MANY assignments are essentially 100% LLM output.
May 8, 2025 at 12:44 AM
On the verge of declaring defeat with chatgpt in my asynchronous online dataviz class. Something changed this semester compared to past ones and SO MANY assignments are essentially 100% LLM output.
Even the White House is using GenAI to cheat on its homework 🤷♂️
April 3, 2025 at 6:21 AM
Even the White House is using GenAI to cheat on its homework 🤷♂️
Meredith Whitakker on the meaning of privacy, Signal vs Whatsapp/Telegram/iMessage/…, the value proposition of OS tech, why being a nonprofit is mission critical, and much more. Besides the privacy part this is a deep discussion on strategy in the current tech ecosystem
youtube.com/live/AyH7zoP...
youtube.com/live/AyH7zoP...
The State of Personal Online Security and Confidentiality | SXSW LIVE
YouTube video by SXSW
youtube.com
March 29, 2025 at 5:40 PM
Meredith Whitakker on the meaning of privacy, Signal vs Whatsapp/Telegram/iMessage/…, the value proposition of OS tech, why being a nonprofit is mission critical, and much more. Besides the privacy part this is a deep discussion on strategy in the current tech ecosystem
youtube.com/live/AyH7zoP...
youtube.com/live/AyH7zoP...
Reposted by Jeroen Mahieu
Childbirth affects firm performance for female Norwegian entrepreneurs: -30 percent profit 10 years post-childbirth. No such decline for male-owned businesses is found, from John Bonney, Luigi Pistaferri, and Alessandra Voena https://www.nber.org/papers/w33448
February 12, 2025 at 10:00 PM
Childbirth affects firm performance for female Norwegian entrepreneurs: -30 percent profit 10 years post-childbirth. No such decline for male-owned businesses is found, from John Bonney, Luigi Pistaferri, and Alessandra Voena https://www.nber.org/papers/w33448
Reposted by Jeroen Mahieu
Having watched with growing alarm the developments of the last 24 and 36 hours in Washington, I thought I’d take a stab at how the US media would cover this story if it was happening in a foreign country. Here’s that story that should be written this weekend: www.doomsdayscenario.co/p/musk-s-jun...
Musk's Junta Establishes Him as Head of Government
Imagining how we'd cover overseas what's happening to the U.S. right now
www.doomsdayscenario.co
February 1, 2025 at 3:53 PM
Having watched with growing alarm the developments of the last 24 and 36 hours in Washington, I thought I’d take a stab at how the US media would cover this story if it was happening in a foreign country. Here’s that story that should be written this weekend: www.doomsdayscenario.co/p/musk-s-jun...
Oh, the irony
OpenAI says it has evidence China’s DeepSeek used its model to train competitor
https://www.ft.com/content/a0dfedd1-5255-4fa9-8ccc-1fe01de87ea6
https://www.ft.com/content/a0dfedd1-5255-4fa9-8ccc-1fe01de87ea6
OpenAI says it has evidence China’s DeepSeek used its model to train competitor
White House AI tsar David Sacks raises possibility of alleged intellectual property theft
www.ft.com
January 29, 2025 at 4:30 AM
Oh, the irony
Reading through the research proposals submitted by my students, I do not believe the claim that “student papers are dead since ChatGPT”. Despite basically 100% adoption rate of LLMs to develop their papers, there’s no sign the student paper problem is “solved”. Couple of observations:
January 28, 2025 at 9:31 PM
Reading through the research proposals submitted by my students, I do not believe the claim that “student papers are dead since ChatGPT”. Despite basically 100% adoption rate of LLMs to develop their papers, there’s no sign the student paper problem is “solved”. Couple of observations:
Reposted by Jeroen Mahieu
Reposted by Jeroen Mahieu
Reposted by Jeroen Mahieu
That’s a good article, but the figures quoted for ChatGPT vs. Google search are outdated, wrong & too high.
Best current energy estimate for a day of ChatGPT use is equiv. to driving an average car the length of a tennis court:
engineeringprompts.substack.com/p/does-chatg...
Best current energy estimate for a day of ChatGPT use is equiv. to driving an average car the length of a tennis court:
engineeringprompts.substack.com/p/does-chatg...
Does ChatGPT use 10x more energy than a standard Google search?
A journey down the rabbit hole of viral AI energy claims. It's probably true in relative terms, but that's not what matters.
engineeringprompts.substack.com
January 19, 2025 at 5:00 PM
That’s a good article, but the figures quoted for ChatGPT vs. Google search are outdated, wrong & too high.
Best current energy estimate for a day of ChatGPT use is equiv. to driving an average car the length of a tennis court:
engineeringprompts.substack.com/p/does-chatg...
Best current energy estimate for a day of ChatGPT use is equiv. to driving an average car the length of a tennis court:
engineeringprompts.substack.com/p/does-chatg...
An underappreciated fact about the massive cost reduction potential of LLMs for data collection and cleaning is that some projects which in the past were too costly to do compared to the possible contribution/impact are now interesting cost-benefit wise. A whole new problem space is now within reach
January 17, 2025 at 11:13 PM
An underappreciated fact about the massive cost reduction potential of LLMs for data collection and cleaning is that some projects which in the past were too costly to do compared to the possible contribution/impact are now interesting cost-benefit wise. A whole new problem space is now within reach
Reposted by Jeroen Mahieu
New randomized, controlled trial by the World Bank of students using GPT-4 as a tutor in Nigeria. Six weeks of after-school AI tutoring = 2 years of typical learning gains, outperforming 80% of other educational interventions.
And it helped all students, especially girls who were initially behind.
And it helped all students, especially girls who were initially behind.
January 15, 2025 at 8:58 PM
New randomized, controlled trial by the World Bank of students using GPT-4 as a tutor in Nigeria. Six weeks of after-school AI tutoring = 2 years of typical learning gains, outperforming 80% of other educational interventions.
And it helped all students, especially girls who were initially behind.
And it helped all students, especially girls who were initially behind.
Reposted by Jeroen Mahieu
incredible -- the NYT ran fluff "what i hope to see in 2025" blurbs from CEOs and economists, and then this guy
www.nytimes.com/2025/01/02/o...
www.nytimes.com/2025/01/02/o...
January 4, 2025 at 4:52 AM
incredible -- the NYT ran fluff "what i hope to see in 2025" blurbs from CEOs and economists, and then this guy
www.nytimes.com/2025/01/02/o...
www.nytimes.com/2025/01/02/o...
This study has gained some traction and is being picked up by the Belgian press. Looking at the results, I'm skeptical of its main claim though- that including or excluding a radical right party by the mainstream party differentially affects support for the two. Let me explain:
Glad to see this study w @jbpilet.bsky.social out in Party Politics: via an experiment in Belgium, we show that claims by a mainstream party (N-VA) to rule with the radical right (VB) legitimizes the latter, while not electorally benefitting the former journals.sagepub.com/doi/10.1177/...
January 1, 2025 at 1:02 PM
This study has gained some traction and is being picked up by the Belgian press. Looking at the results, I'm skeptical of its main claim though- that including or excluding a radical right party by the mainstream party differentially affects support for the two. Let me explain:
“De zorg-zzp’er is het symbool van een systeem dat mensen niet waardeert” of waarom het handhaven van de wet rond schijnzelfstandigheid zal leiden tot een uitstroom van waardevolle krachten uit de zorg. Opiniestuk in NRC.
Opinie | De zorg-zzp’er is het symbool van een systeem dat mensen niet waardeert
Zelfstandigen: Nu de overheid straks écht gaat handhaven op schijnzelfstandigheid, dreigt volgens Jeroen Mahieu een uitstroom van zzp’ers uit de zorg.
www.nrc.nl
December 30, 2024 at 12:16 PM
“De zorg-zzp’er is het symbool van een systeem dat mensen niet waardeert” of waarom het handhaven van de wet rond schijnzelfstandigheid zal leiden tot een uitstroom van waardevolle krachten uit de zorg. Opiniestuk in NRC.
“The signaling value of legal form in entrepreneurial debt financing” (joint with Felix Bracht and Steven Vanhaverbeke) is now forthcoming in the Journal of Business Venturing! doi.org/10.1016/j.jb...
We show that the legal form choice at startup influences entrepreneurs’ acces to debt
We show that the legal form choice at startup influences entrepreneurs’ acces to debt
Redirecting
doi.org
February 12, 2024 at 12:34 PM
“The signaling value of legal form in entrepreneurial debt financing” (joint with Felix Bracht and Steven Vanhaverbeke) is now forthcoming in the Journal of Business Venturing! doi.org/10.1016/j.jb...
We show that the legal form choice at startup influences entrepreneurs’ acces to debt
We show that the legal form choice at startup influences entrepreneurs’ acces to debt
What PVV, NSC do not understand (or don’t care about) is that the academic labor market is international. Imposing higher education to be in Dutch will not only crowd out international talent but also national top researchers. Will lead to labor shortages and harm quality of higher education
November 23, 2023 at 12:01 PM
What PVV, NSC do not understand (or don’t care about) is that the academic labor market is international. Imposing higher education to be in Dutch will not only crowd out international talent but also national top researchers. Will lead to labor shortages and harm quality of higher education
Each year, I verify whether students have read the course manual by asking them to mail me a picture of something random. This time I asked them to send me memes. Today, I learned I got beaten by the students’ group chat. Time for a new strategy I guess 🤷♂️
November 14, 2023 at 7:02 PM
Each year, I verify whether students have read the course manual by asking them to mail me a picture of something random. This time I asked them to send me memes. Today, I learned I got beaten by the students’ group chat. Time for a new strategy I guess 🤷♂️