Gonzalo Ballestero

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/articl…

@KikiLoriente Felicitaciones

En agosto arranco el PhD en Economía en Arizona State University 🎓 No lo puedo procesar todavía. ¿Alguien más arrancando en Economía este año?

@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

Join us next week!👇

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.

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.edu/2026/03/10/new…

gander is an R package that brings AI directly into RStudio or Posit. Instead of switching between your IDE and a chat window, gander lets you ask questions or request code changes right inside your script. It automatically shares relevant context such as variable names, data types, and the surrounding code, so the model can provide precise answers without extra copy-pasting. You can trigger it with a simple keyboard shortcut, choose from different AI models (OpenAI, Claude, or local ones), and control how much of your data is sent for context. In short, gander makes working with AI in RStudio smoother, faster, and smarter. Take a look at the visualization below. It shows an example of how to use gander to create a ggplot2 graph. It’s taken from the package website: simonpcouch.github.io/gander/ Join my newsletter for more tutorials and insights on R, Python, data science, and AI. More info: statisticsglobe.com/newsletter #DataAnalytics #Data #datavis

📢 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/simulat…

An excellent scholar and an even better advisor

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/appli…

@MartinNistal Cómo me hubiera gustado tener un curso así durante la licenciatura. Muy bueno!

Mañana abren las inscripciones para el intensivo de verano de la FCE-UBA donde voy a estar dando el curso de Evaluación de Impacto. Un curso fundamental para todxs los interesados en Políticas Públicas Van a haber varias aplicacion en Econ de la Educación Se agradece RT!

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.

Excited to talk about AI at the CSRAI Rump Sessions next week. Hope to see you there!

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)

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

Come join us @PennStateEcon for the Midwest Trade & Theory Conference in mid-November. Submission deadline is September 6. Details here: sites.google.com/view/midwesttr…

@hbejaonline @PennStateEcon Gracias Hernán

@ballesterogh @PennStateEcon Vamos Penn State!

Read more at: econ.la.psu.edu/news/ @PennStateEcon

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