Today's cool young researcher #econtwitter #econsky is @fabalbav @WakeForest who works on topics related to education and health, particularly in Latin America
Sebastian Gallegos
@sebagallegos.bsky.social
Associate Professor of Economics @UAI_CL. Fall 2026-27: Visiting Scholar @Harvard. Prev: Economist @the_IDB, Postdoc @Princeton, PhD @UChicago. Researcher @IZA, @JPAL, @hceconomics, @_jilae, @CentroCOES www.sebastiangallegos.cl
Can universities shape how students use GenAI tools? New IZA WP! lnkd.in/dhCY4zqJ - I deploy a course-specific AI assistant and test it with two RCTs with real academic stakes; - AI adoption was not enough; - Students benefited when AI was used tutor-style, not just as a source of direct answers
Guidance Over Adoption: Experimental Evidence on AI-Assisted Learning
This paper estimates the causal effect of a large language model–based study assistant on student behavior and learning outcomes in a natural field se...
iza.org
*Publication at Nature!* So glad to have participated in this collaborative research project with the @i4replication.bsky.social. See below!
Institute for Replication@i4replication.bsky.social · 6mo ago🧵1/ Our first meta-science paper (with 350+ coauthors) is published today in Nature. It presents one of the largest-ever reproducibility projects in economics & political science. Here’s what we found 👇
Do 2nd chances in high-stakes exams lead to *long-term* gains?🎓 15 years of ed & labor market outcomes in Chile using an RDD => Immediate boosts in scores & enrollment => But zero effects in graduation & wages! 🔍 Full study: docs.iza.org/dp18467.pdf @joshua-goodman.com @agendacaf.bsky.social
Wow! Each $1 spent on Universal Pre-Kindergarten generates between $3-$20 dollars in aggregate earnings. That's enough to offset the costs of Universal Pre-Kindergarten through higher tax revenues.
You've heard of the many analysts projects, right? Scholars give the same dataset/question to a bunch of researchers & they still get different answers. Why is that? Data cleaning! This is consistent with Gelman's "garden of forking paths." Small coding decisions often drive results.
Cool new papers in the JHR! In Chile, massive administrative data FTW: 20 years of data show that early skill advantages lead to shifts in parental beliefs + investments + ⬆️ college admissions + enrollment @seba_gallegos @sebagallegos.bsky.social jhr.uwpress.org/cont...
Hi everybody! Our paper *Schooling Mobility Across Three Generations in Six Latin American countries*, published at the Journal of Population Economics, is available *open access* here link.springer.com/article/10.1...
Schooling mobility across three generations in six Latin American countries - Journal of Population Economics
This paper presents new evidence on schooling mobility across three generations in six Latin American countries. By combining survey information with national census data, we have constructed a novel ...
link.springer.com
💥New 💥 IZA Discussion Paper! 🔵 What happens when 140+ teams of economists perform the same research three times, each time with less freedom? ✅ Find out here! www.iza.org/publications... ✅ This is a "Many-Economists" project led by Huntington-Klein & Pörtner. Read Nick's post below to learn more!👇
Nick Huntington-Klein@nickchk.com · 2y agoAfter a long wait, the working paper for the Many-Economists Project: The Sources of Researcher Variation in Economics. We had 146 teams perform the same research three times, each time with less freedom. What source of freedom leads to different choices and results? papers.ssrn.com/sol3/papers....
Ed Leamer has passed away. Ed was one of my favorite colleagues at UCLA: smart, witty, helpful. My former colleague Pete Schott who was his student, perfectly captured Ed's quirks on his webpage. For a recent tribute to Ed see here: youtu.be/tg3XEz9inVE?...
Hi everybody! Our paper *Schooling Mobility Across Three Generations in Six Latin American countries*, published at the Journal of Population Economics, is available *open access* here link.springer.com/article/10.1...
Schooling mobility across three generations in six Latin American countries - Journal of Population Economics
This paper presents new evidence on schooling mobility across three generations in six Latin American countries. By combining survey information with national census data, we have constructed a novel ...
link.springer.com
