iiinova — where your digital self keeps evolving

MJ Yang @mjyang.bsky.social · 29/01/2026

Too much spam here, but I like LinkedIn now.,

010

Reposted by MJ Yang

Daniela Scur @danielascur.bsky.social · 29/12/2025

Thoughts of love (and maybe some whisky) to all toddler parents with no daycare this week

071

Reposted by MJ Yang

Adam Grant @adamgrant.bsky.social · 20/11/2025

It's time to remove laptops from classrooms. 24 experiments: Students learn more and get better grades after taking notes by hand than typing. It's not just because they're less distracted—writing enables deeper processing and more images. The pen is mightier than the keyboard.

20383121

Reposted by MJ Yang

Kevin A. Bryan @afinetheorem.bsky.social · 24/11/2025

Hiring this year in economics or management? I try to read every JMP on innovation, entrepreneurship, or econ of AI; why not make the list public? Here's 54 candidates on the market this year (link below). Many great papers + NBER Innovation PhD boot camp grads! kevinbryanecon.com/2025innovati...

kevinbryanecon.com

Innovation, Entrepreneurship, AI Job Candidates 2025

1103

Reposted by MJ Yang

Colleen Cunningham @colleencunningham.bsky.social · 16/10/2025

New WP (by me and others) on how disclosure mandates: (1) increase disclosure (primarily of negative outcomes), and (2) how expectations of increased disclosure by others slows down innovation. Link and more details in @florianederer.bsky.social's thread...

0124

MJ Yang @mjyang.bsky.social · 13/10/2025

PSA on United Airlines: If you miss your initial flight from a roundtrip they cancel all subsequent flights and keep your money. And airline is unwilling to rebook even though they have available seats. Just rebooked with Delta Air Lines, to leave SFO..

100

MJ Yang @mjyang.bsky.social · 30/09/2025

Gemini 2.5 Pro is very solid all around. Claude is better at coding. Last place, for most tasks: ChatGPT-5. However, I have actually been quite impressed with Chinese Open weight models such as Qwen3..

000

MJ Yang @mjyang.bsky.social · 30/09/2025

I have been incredibly fortunate to learn both from my amazing coauthors and a fantastic set of HBS alumni. And this work will be foundational for more forthcoming research (by others and myself) on how AI will impact the process of making business strategy going forward.

000

MJ Yang @mjyang.bsky.social · 30/09/2025

What is more, we establish causal evidence that business education has a persistent impact on CEO's strategy process -- even decades later. (So yes, business education does actually matter..)

100

MJ Yang @mjyang.bsky.social · 30/09/2025

Our basic result is that strategic decision-making styles vary widely across CEOs and that CEOs with more structured practices (proactive, consistent and hypothesis-driven), tend to outperform their (less-structured) peers especially in industries with high degrees of strategic complexity.

110

MJ Yang @mjyang.bsky.social · 30/09/2025

Very happy to see this paper in (online) print. Together with Michael Christensen, @raffasadun.bsky.social , @nickbloom.bsky.social and Jan Rivkin, we interviewed hundreds of CEOs to measure how they make business strategy. pubsonline.informs.org/doi/10.1287/...

pubsonline.informs.org

How Do Chief Executive Officers Make Strategy? | Management Science

141

MJ Yang @mjyang.bsky.social · 21/09/2025

Yes, the idea that LLMs pay uniform attention to everything in a paper (or are "better at paying attention that humans") is a widely believed myth.

020

MJ Yang @mjyang.bsky.social · 21/09/2025

Financial crisis? "According to Moody’s, structured finance has become a popular way to pay for new data center projects, with more than $9 billion of issuance in the commercial mortgage-backed security and asset-backed security markets during the first four months of 2025." (Ian Frisch, NYTimes)

000

MJ Yang @mjyang.bsky.social · 15/09/2025

"Accenture, (...), in its most recent quarter reported a $100 million increase in new generative AI bookings quarter over quarter. That is down from a $200 million quarter-over-quarter increase the previous two periods." www.wsj.com/articles/how...

wsj.com

How the AI Boom Is Leaving Consultants Behind

Consultants have a lot to gain helping companies deploy the most transformative technology in decades. Some clients say so far they have overpromised and underdelivered.

010

MJ Yang @mjyang.bsky.social · 15/09/2025

PSA if you travel to SMS-SF: I used the SMS-provided promo code on United and compared it with exactly the same flight without the promo code. The code made my airfare $40 MORE expensive. Nice anecdote for price discrimination or business ethics? www.colorado.edu/today/2025/0...

colorado.edu

Your next airline ticket could be priced by AI

Delta is testing an AI-powered pricing system that could charge two travelers different fares even if they are purchasing at the same moment. Pricing strategy

000

MJ Yang @mjyang.bsky.social · 10/09/2025

The LLM turning point is coming ( = we may be close to the "peak of inflated expectations" in the Hype Cycle). www.economist.com/business/202...

economist.com

Faith in God-like large language models is waning

That may be good news for AI laggards like Apple

000

MJ Yang @mjyang.bsky.social · 06/09/2025

Have we learned nothing from conflicts of interest during the subprime housing crisis? "Both authors have a financial interest in www.expectedparrot.com. Horton is an economic advisor to Anthropic."

011

Reposted by MJ Yang

Kristina McElheran @kmcelheran.bsky.social · 27/08/2025

Excited to have my research (co-authored with the dream team of @mjyang.bsky.social, Zachary Kroff, and @erikbryn.bsky.social) featured in the New Yorker!

093

Reposted by MJ Yang

Kevin A. Bryan @afinetheorem.bsky.social · 25/08/2025

Incredibly excited for my brand new class at Rotman this fall: Progress! Econ history + theory + history of thought + philosophy on why rare orgs at rare times in rare places accomplish new things. Trying to put rigor onto an idea that is very much in the air. kevinbryanecon.com/Bryan-Progre... 1/3

1164

MJ Yang @mjyang.bsky.social · 20/08/2025

Seems Sam Altman thinks "Yes", AI is in a bubble? Yet, he wants to let OpenAI employees convert stock to cash with an implied valuation of $500 Billion? (with a B!). What happend to getting "PhD level" ChatGPT-5 expertise, .. (checks notes) .. two weeks ago?!? www.theverge.com/ai-artificia...

theverge.com

Sam Altman says ‘yes,’ AI is in a bubble

Is the bubble about to burst?

000

Reposted by MJ Yang

Ben Spigel @benspigel.bsky.social · 19/08/2025

There is an.....interesting op-ed in today's WSJ from a 22 year old entrepreneur telling everyone that work life balance will "keep you mediocre" It is completly wrong. Let me tell you why with citations. [gift link to the very wrong op-ed] 1/n www.wsj.com/opinion/work...

261

MJ Yang @mjyang.bsky.social · 09/08/2025

Odd, or signal that ChatGPT-5 is lower quality, but cheaper to run, because it decides when a high-token test-time compute run is triggered..

000

MJ Yang @mjyang.bsky.social · 08/08/2025

This also raises huge issues for replicability of research based on older ChatGPT models..

030

Reposted by MJ Yang

David Dunning @daviddunning6.bsky.social · 07/08/2025

There are two Bs!

18112

Reposted by MJ Yang

Joshua Gans @joshgans.bsky.social · 03/08/2025

You should read @noahpinion.blogsky.venki.dev on the data centre investments and whether they will lead to a financial crisis. I think he downplays the risk. It is potentially very high. www.noahpinion.blog/p/will-data-...

noahpinion.blog

Will data centers crash the economy?

This time let's think about a financial crisis before it happens.

195

MJ Yang @mjyang.bsky.social · 27/07/2025

Disruption of the traditional MBA is here, whether we want it or not..

010

MJ Yang @mjyang.bsky.social · 26/07/2025

Consider: Google has a 90% market share in web and mobile searches. And has Gemini LLM results on top by default on any search. Are 1 trillion processed tokens really a sign of usefulness? (Same question about MSFT forcing LLMs on their developers..) We see "revealed preference", just not for LLMs.

110

Reposted by MJ Yang

Kristina McElheran @kmcelheran.bsky.social · 23/07/2025

I have been thinking about this a lot, lately, after finding the troubling productivity impacts of AI on older firms ( conference.nber.org/conf_papers/... ), combined with prior work showing the impacts of digitization on older workers (www.nber.org/papers/w28094). #EconSky

conference.nber.org

021

MJ Yang @mjyang.bsky.social · 17/07/2025

Importantly, the negative productivity effects are concentrated at old manufacturing establishments and firms. We can narrow down the mechanism as well, by showing that roughly half of the productivity loss is driven by removal of (human-supporting) structured management practices.

000

MJ Yang @mjyang.bsky.social · 17/07/2025

We use 2 separate datasets from the US Census Bureau and 3 separate identification strategies (matching, first-difference, IV) to establish credible causal effects. We find as of 2021 strongly negative productivity effects in the short-run and some evidence for potentially positive long-run effects.

100

MJ Yang @mjyang.bsky.social · 17/07/2025

Naked self-promotion: My fantastic co-author @kmcelheran.bsky.social will present our empirical paper on "Industrial AI" (self-driving forklifts, self-optimizing production lines, autonomous quality control) and its effect on productivity in US manufacturing. www.nber.org/conferences/...

nber.org

SI 2025 Digital Economics and Artificial Intelligence

131

MJ Yang @mjyang.bsky.social · 14/07/2025

Its not me, its the LLMs: in domains including coding, math, mapping, logic and now simple physics, they overfit and are unable to generalize. Still waiting for ChatGPT-5 btw..

000

MJ Yang @mjyang.bsky.social · 30/06/2025

I agree that teachers (=experts) using LLMs has clear benefits. I think the evidence of benefits of LLMs for students is less consistent and more context dependent. LLMs are not a hoax, but also clearly over-hyped.

000

MJ Yang @mjyang.bsky.social · 29/06/2025

Part of the avalanche of recent papers showing incoherence of LLMs: @sendhil.bsky.social and coauthors show that LLM answers contradict their reasoning in the majority of cases, among 7 current LLM/LRM models. Another datapoint on "LLM reasoning is just pretense". arxiv.org/abs/2506.21521

arxiv.org

Potemkin Understanding in Large Language Models

Large language models (LLMs) are regularly evaluated using benchmark datasets. But what justifies making inferences about an LLM's capabilities based on its answers to a curated set of questions? This...

000

MJ Yang @mjyang.bsky.social · 28/06/2025

Finished "Empire of AI" by @karenhao.bsky.social: important & compelling read for anybody worried about the broader social consequences of LLMs, even if we never reach AGI. I was initially skeptical about the "empire/colonialism" framing but now appreciate it. www.amazon.com/s?k=empire+o...

amazon.com

Amazon.com : empire of ai

000

MJ Yang @mjyang.bsky.social · 25/06/2025

Yup, that OpEd reminds me of the recent MIT-brain study on LLM use..

010

MJ Yang @mjyang.bsky.social · 25/06/2025

I guess it depends on how long "short term" is? Even if data center investments have broken even, the opportunity cost really should be measured by a long-run average of alternative investments at their social benefits..

000

MJ Yang @mjyang.bsky.social · 19/06/2025

Very impressive study showing that LLM-use reduces brain activity for an essay writing task, over a 4-month time horizon. Letting college students use LLMs can significantly reduce educational benefits, not increase them.

000

MJ Yang @mjyang.bsky.social · 19/06/2025

More and more, I'm thinking the answer is "no". However, that doesn't prevent employers to think that it can and for example not sure junior software developers anymore. More importantly, AI is sometimes cheaper than hiring entry-level skilled employees..

000

MJ Yang @mjyang.bsky.social · 19/06/2025

At the same time, he says "AI is NOT a fad" and emphasizes that this (LLM-supported code generation) will "never go away". I agree, more generally for higher-ed than just software engineering.

000

MJ Yang @mjyang.bsky.social · 19/06/2025

I like this guy's idea of "AI Hype Derangement Syndrome", and might refer to it. Ask yourself: If MSFT, META etc really could create 30% of their code through LLMs, why isn't there more high-quality LLM-created code in open source software? Or why is "AI-code" banned on many open-source platforms?

100

MJ Yang @mjyang.bsky.social · 19/06/2025

LLM-generated code is highly likely to generate cybersecurity risks. Yet, a majority of IT professionals say they believe that LLM-generated code is more secure than human code. Maybe because MSFT and others claim "up to 30%" of their code is LLM-based? Wait a sec.. youtu.be/NxOehfOfB6c?...

youtu.be

Generative AI and Code Security — recent developments as of June 2025

YouTube video by Spec Again: Reinventing Modern Software Careers

100