AI, Economics, and Marketplaces. PhD candidate in Economics @PennStateEcon

Joined August 2020
32 Photos and videos
Pinned Tweet
I am sharing a set of slides from my lecture on agentic AI tools for Applied Economists at @penn_state. Materials are available here: github.com/ballesterogh/A-Pr… This builds on this thread and great work by Paul Goldsmith-Pinkham, @aniketapanjwani, and @VelikovMihail
Want to start using Claude Code for academic research? Or see incredible things other researchers are doing with Claude Code? Here's a thread of 5 great tutorials, skill and projects you can start using right now. I'm also keen to do an online "reading group" to work through these and others every week. Beginners welcome. Let me know below if you're interested. 1/ Chris Blattman shares an entire suite of tools he build in the last 4 weeks:
6
147
710
119,636
Gonzalo Ballestero retweeted
Closing the second meeting of the AI and the Economy Initiative. Here is a thread with the highlights @PSULiberalArts @PennStateEcon @SmealCollege @ISTatPENNSTATE @PennStateCSRAI 1/n
1
2
3
231
Gonzalo Ballestero retweeted
When multiple companies deploy AI systems that learn from overlapping market data, optimize similar objectives, and operate at machine speed, a pattern emerges: Those systems tend to arrive at the same conclusions independently. Is your company deploying AI systems trained on the same market data as your competitors? Researchers call this the Agentic Convergence Trap. Understanding it requires understanding not just how AI systems behave, but how executives have enabled the behavior. Here’s how to avoid this trap. s.hbr.org/4uRi6WZ
3
5
6,463
Glad to see this paper forthcoming in IJIO. A meaningful milestone for me personally!
Forthcoming IJIO article by Gonzalo Ballestero 📖Algorithmic collusion under sequential pricing and stochastic costs doi.org/10.1016/j.ijindorg.2… @Sciencedirect
1
1
12
3,085
Excited to share that my paper on Algorithmic Collusion is now published in the International Journal of Industrial Organization. Many thanks to the referees and editor. Special thanks to @RanShorrer and @luliquesadalcs for their guidance along the way sciencedirect.com/science/ar…
4
25
1,970
Gonzalo Ballestero retweeted
@ballesterogh told us about strategic algorithmic monoculture. His work (w/ @RanShorrer @hadi_hoss and @samarthkhanna98) shows that LLMs adjust coordination to incentives and are effective convergence coordinators, but lag behind humans in diverging 6/n
1
3
6
530
Join us next week!👇
📢 Our inaugural workshop is happening next week! Join leading researchers, policymakers, and practitioners to discuss how AI is transforming the economy Organized by @ballesterogh, @RanShorrer, @hadi_hoss , and Chloe Tergiman
2
289
Gonzalo Ballestero retweeted
Terence Tao spent a year at the Institute for Advanced Study - no teaching, no random events of committees, just unlimited time to think. But after a few months, he ran out of ideas. Terence thinks that mathematicians and scientists need a certain level of randomness and inefficiency to come up with new ideas.
126
596
5,808
913,611
Gonzalo Ballestero retweeted
This winter I co-taught a grad seminar on when & how LLMs can stand in for human subjects in social science research, to a mix of CS & social science students. It was fun (albeit w/occasional friction) to talk methods w/such a diverse group. Reading list: statmodeling.stat.columbia.e…

17
104
7,479
Gonzalo Ballestero retweeted

3
42
271
27,359
Gonzalo Ballestero retweeted
📢 New policy brief: AI agents that can simulate human behaviors and attitudes can help test ideas in social science. Our latest brief introduces a generative AI agent architecture that simulates the attitudes of 1,000 real people. Learn more: hai.stanford.edu/policy/simu…
9
107
339
43,415
An excellent scholar and an even better advisor
On the terrific work @RanShorrer has been doing over the past decade (@penn_state, @PennStateEcon) psu.edu/news/liberal-arts/st…
2
148
Gonzalo Ballestero retweeted
When admissions are correlated, diversifying your college applications is the optimal strategy. We spoke with @SNageebAli and @RanShorrer of @PennStateEcon about why the standard advice to apply to reach, match, and safety schools is sound. aeaweb.org/research/applicat…
7
56
19,459
Gonzalo Ballestero retweeted
This is a useful paper on open-ended survey data. Open-ended questions can help reveal individuals’ motives, mental models and decision-making processes. Open-ended survey data have been used to study what’s on top of people’s minds w.r.t. important economic policy questions.
2
31
121
25,673
Excited to talk about AI at the CSRAI Rump Sessions next week. Hope to see you there!
Join us this Wednesday for our next Graduate Student Rump Session w/ students and scholars from @ISTatPENNSTATE, @PSULiberalArts, @psuarts_arch, and @PSUEngineering. 🗓️ Wednesday, Nov. 5 🕝 2:30-4:00 p.m. 📍 E202 Westgate Bldg. and Virtual via Zoom 📷 csrai.psu.edu/rump-session
2
157
Gonzalo Ballestero retweeted
Thrilled that my Minimalist Market Design monograph is forthcoming in the Econometric Society Monograph Series. The revised and much expanded version is now available on arXiv: arxiv.org/abs/2401.00307 This thread unpacks the framework — scholarly, reflective, personal. (1/20)
3
41
180
61,831
Gonzalo Ballestero retweeted
12 Sep 2025
Early career mismatch matters: Overqualified are less motivated yet outperform others in the same job; underqualified exert more effort but still lag, from Julie Berry Cullen, Gordon B. Dahl, and Richard De Thorpe nber.org/papers/w34215
25
92
7,767
La Nación citó un informe que escribmos sobre el Examen Nacional de Residencias Médicas en Argentina. El trabajo busca aportar evidencia al debate público sobre los sesgos del sistema de admisión
1 Jul 2025
La lucha por un lugar: así fue el megaexamen con 13.476 inscriptos y 7687 vacantes para residencias médicas | por Fabiola Czubaj lanacion.com.ar/sociedad/la-…
1
15
1,464