J. Manuel Sánchez-Cartas's Avatar

J. Manuel Sánchez-Cartas

@jmscartas

Assistant professor at Universidad Complutense de Madrid (Spain). Microeconomics, IO, AI & ABMs. www.sanchezcartas.com

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10.11.2024
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Latest posts by J. Manuel Sánchez-Cartas @jmscartas

My latest paper on MDE is about this, a simple model in which acquisitions are contingent on payments shows the first effect, and a simple Cournot model illustrates the second. Hope you find it useful! www.researchgate.net/publication/...

06.12.2025 10:54 👍 0 🔁 0 💬 0 📌 0

a) payments are conditional on the acquisition or b) no pre-merger decisions are considered. If either of these conditions fails, the “take it or leave it” assumption is an extreme case and (sometimes) a very strong assumption (...)

06.12.2025 10:54 👍 0 🔁 0 💬 1 📌 0

The “take it or leave it” assumption is common in M&A models, since the bargaining process only determines the allocation of the surplus among the parties and simplifies the model, right? Yes, but it is a double-edged sword, since it is only true if (...)

06.12.2025 10:54 👍 0 🔁 0 💬 1 📌 0
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Generative Artificial Intelligence, Content Creation, and Platforms - Journal of Industry, Competition and Trade Generative AI (GenAI) is a rapidly growing technology that is expected to transform business and society. An important question is how it will affect platforms and their ecosystems, especially human-g...

Check it below!
link.springer.com/article/10.1...

26.07.2025 16:50 👍 0 🔁 0 💬 0 📌 0

...nor has incentive to do so. However, we can expect a reduction of content and providers, but not everywhere. Competitive markets and those with barriers to entry are more resilient to Google AI summaries. Why? In a recent published article, we answered this and more [2/3]

26.07.2025 16:50 👍 0 🔁 0 💬 1 📌 0
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Google users are less likely to click on links when an AI summary appears in the results In a March 2025 analysis, Google users who encountered an AI summary were less likely to click on links to other websites than users who did not see one.

Google users who encounter an AI summary are less likely to click on links to other websites than users who do not see one. But Google won't kill the content market...[1/3]
www.pewresearch.org/short-reads/...

26.07.2025 16:50 👍 0 🔁 0 💬 1 📌 0
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What happens if you put a full scientific paper into AI and ask it to find known errors in proofs, tables, etc?

Every model before o3 fails completely, o3 gets 21% (its better at proofs, worse at tables & figures). Progress & useful as a second opinion/co-intelligence, not yet autonomous science.

01.07.2025 16:15 👍 43 🔁 3 💬 4 📌 1
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Paper on the economics of AI competition shows new AI models are adopted very rapidly but are not always substitutes for each other (better models in the same family often substitute, but others expand the pie). Also, people use a mix of models. andreyfradkin.com/assets/deman...

02.05.2025 12:39 👍 30 🔁 9 💬 0 📌 1

Papers on economics, AI and decision making are welcome, especially from PhD students or early career researchers.

Deadline is on May, 28. Save the date!

29.04.2025 18:23 👍 0 🔁 0 💬 0 📌 0
Home - ItAIS 2025

Submissions for ItAIS 2025 are now open!

This year, we have a special topic on Information Economics and Decision Analysis.

www.itais.org/conference/2...

29.04.2025 18:23 👍 0 🔁 0 💬 1 📌 0
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

Giulia Brancaccio and I are looking for a pre-doc to work with us on topics related to Industrial Organization and Trade
@nyu.edu

Ideally for two years starting in September

apply.interfolio.com/165860

#EconSky #EconRA

15.04.2025 00:57 👍 15 🔁 7 💬 0 📌 0

Near as I can tell the only people winning out of this are graduate students in macro and trade who needed a random shock to study causal effects.

03.04.2025 10:52 👍 17 🔁 5 💬 0 📌 0

In this paper Rob and I review Agent-Based Modeling in economics and finance and how it can be used to relax conventional assumptions in standard economic models. We suggest how ABMs might be used in the future to build more realistic models of the economy and examine potential hurdles.

05.03.2025 15:12 👍 14 🔁 5 💬 1 📌 0

Provoking, to say the least.

07.02.2025 13:17 👍 0 🔁 0 💬 0 📌 0
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Economist @joshgans.bsky.social uses o1-pro to generate a (minor, fun) paper in an hour based on an idea of his, and it gets published in an appropriate peer reviewed journal, with adequate disclosure.

He ends with the same sentiment I am increasingly seeing from fellow academics: what now?

05.02.2025 19:25 👍 92 🔁 21 💬 4 📌 4
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Competition policy that sets market power to 1980s levels would lower the stock market by 45%. The remainder, due to accumulated retained earnings (35%) and a lower risk-free rate (20%), is unaffected.

07.02.2025 06:49 👍 3 🔁 2 💬 0 📌 1
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chain of thought is hilarious

(distilled deepseek 14b running via ollama)

29.01.2025 20:48 👍 51 🔁 10 💬 1 📌 1

Congrats! Keep up the good work!

30.01.2025 11:49 👍 1 🔁 0 💬 0 📌 0

The statement "I personally chose the price" says a lot about the impact of our profession.

06.01.2025 20:48 👍 1 🔁 0 💬 0 📌 0

It's a financial definition that appeals to a specific public, but that's not for us. Without considering the alternatives, that threshold says little. But I understand the mindset that if a single tech can earn half of Google's profits, it should be a breakthrough (like AGI)

27.12.2024 14:29 👍 1 🔁 0 💬 0 📌 0

Thanks for the recommendation. Although it's not my arena, it's interesting nonetheless!

23.12.2024 21:00 👍 0 🔁 0 💬 0 📌 0

I also rely on the AI summary most of the time because it's useful. However, it may have other unintended consequences. If we wish to evaluate the impact of a technology, we must know its consequences, and normally the bad ones are less noticiable than the good ones. That's my thought on the SM bias

23.12.2024 20:59 👍 0 🔁 0 💬 0 📌 0

Moreover, we find that there is a relationship between the number of creators pre- and post-GenAI and the "summarization effect". We hope this and other results may help others estimate the effect of GenAI in digital markets.

23.12.2024 09:45 👍 0 🔁 0 💬 0 📌 0

Competitive markets and those with high entry costs will be less affected. However, the extent of this effect depends on the diminishing or constant returns of developers.

23.12.2024 09:45 👍 1 🔁 0 💬 1 📌 0
Preview
Generative Artificial Intelligence, Content Creation, and Platforms - Journal of Industry, Competition and Trade Generative AI (GenAI) is a rapidly growing technology that is expected to transform business and society. An important question is how it will affect platforms and their ecosystems, especially human-g...

Happy to share our latest work on GenAI and competition. #GenAI may reduce content and increase its price when it summarizes content that can be found on the Web, such as Wikipedia or news articles. But not all markets will suffer the same fate...
#EconSky

link.springer.com/article/10.1...

23.12.2024 09:45 👍 0 🔁 0 💬 3 📌 0

Hi! I'm Manuel, an economist working on platform competition, AI and market simulations. I mostly read but write little. Nonetheless, views are my own.

23.12.2024 09:40 👍 0 🔁 0 💬 0 📌 0