We examine how lower-performing public school teachers respond to more frequent formative evaluations. A 2011 reform in Chile required teachers rated "basic" (the second-lowest category) to be re-eval...

ALT: Why Not Both? The Iconic Meme

We investigate a government-delivered socioemotional support intervention in Morocco's public lower-secondary schools. The intervention trained existing school social specialists to deliver small-grou...

Abstract. The use of four-day school weeks (4dsw) in the United States has expanded rapidly over the past two decades. Previous work examines the impact of 4dsw on student outcomes, but less research ...

ITAM, Mexico City · October 23–24, 2026. Submission deadline: June 19, 2026.

(Forthcoming Article) - We show that, depending on how the impact of omitted variables is measured, it can be substantially easier for omitted variables to flip coefficient signs than to drive them to zero. This behavior occurs with “Oster’s delta” (Oster 2019b), a widely reported robustness measure. Consequently, any time this measure is large—suggesting that omitted variables may be unimportant—a much smaller value reverses the sign of the parameter of interest. We propose a modified measure of robustness to address this concern. We illustrate our results in four empirical applications and two meta-analyses. We implement our methods in the companion Stata module regsensitivity.

There is evidence both to explain and complicate the “fadeout effect”

The Weiss Fund Fellowship provides supplementary financial support for exceptional job market PhD candidates accepting positions in Weiss Fund-eligible countries and doing work aligned with the Weiss ...

(Forthcoming Article) - We evaluate a large-scale public preschool construction program in deprived rural communities in Mozambique using a randomized control trial. The program increased preschool en...

Policy Priorities for EdTech in LMICsAvoid hardware-first approaches. These have consistently failed and are expensive.Prioritise interventions with strong evidence of cost-effective impact:Personalis...

A recent PowerPoint presentation presents the outline for the institutional structure of “The WBG Knowledge Bank.” But a knowledge bank owes it to its stakeholders impartial and transparent considerat...

Tutoring and technology are revolutionizing education, addressing Bloom's two sigma problem with scalable, cost-effective, high-impact solutions.