蝌蚪网

How Many (Half) Moons? Measuring Technology Adoption from the Sky and on the Ground

By Jenny C. Aker, Jennifer Burney, Alison Campion, B. Kelsey Jack, and Chuan Liao

蝌蚪网 Papers and Proceedings, May 2026

Measuring technology adoption is central to evaluating development policies, yet standard approaches face trade-offs between accuracy, cost, and scalability.聽Using data from a randomized controlled trial in Niger, we compare four methods for measuring ad...

Predicting Well-Being with Mobile Phone Data: Evidence from Four Countries

By Emily Aiken, Joshua E. Blumenstock, Sveta Milusheva, and M. Merritt Smith

蝌蚪网 Papers and Proceedings, May 2026

We provide systematic evidence on estimating household well-being from mobile phone data across four countries (Afghanistan, C么te d鈥橧voire, Malawi, Togo). Using parallel, standardized machine learning experiments, we assess which welfare measures are m...

Representation in Mobility Data in Emerging Cities

By Daniel 叠箩枚谤办别驳谤别苍, Alice Duhaut, Oluchi Mbonu, Geetika Nagpal, and Nick Tsivanidis

蝌蚪网 Papers and Proceedings, May 2026

How people move has implications for many facets of economic activity. Data from mobile phones have enabled much finer tracking of mobility. However, there are multiple ways to measure mobility. Smartphone data may omit many people in emerging economies, ...

Race, Ethnicity, and Nonpayment of Unemployment Insurance: The Role of the Employer

By Marta Lachowska and Stephen A. Woodbury

蝌蚪网 Papers and Proceedings, May 2026

We examine worker-employer disputes over unemployment insurance (UI) claims and their relationship to benefit nonpayment. Administrative UI records allow us to use workers who file multiple claims to control for unobserved worker heterogeneity. We observe...

Race, Firm Size, and the School-to-Work Transition

By Lisa B. Kahn and Yang Chang

蝌蚪网 Papers and Proceedings, May 2026

We examine race differences in labor market entry timing and quality of first jobs. Black workers are more likely to begin their careers at large firms but exhibit delayed entry. White workers increase their odds of starting at a large firm by searching f...

Black-White Gaps in Employer-Sponsored Health Insurance

By Helen Levy

蝌蚪网 Papers and Proceedings, May 2026

Using data from the Current Population Survey for 1988 through 2023, I find that Black-White differences in own-employer health insurance are highly persistent over time but differ sharply by sex: Black male workers are substantially less likely than Whit...

Birthright Citizenship and Youth Crime

By Leander Andres, Stefan Bauernschuster, Gordon B. Dahl, Helmut Rainer, and Simone 厂肠丑眉濒濒别谤

蝌蚪网 Papers and Proceedings, May 2026

This paper studies the impact of birthright citizenship on youth crime. We leverage a reform that automatically granted birthright citizenship to eligible immigrant children born in Germany after January 1, 2000 and administrative crime data from three fe...

The Birth of Mass Unauthorized Immigration in the United States

By Elizabeth U. Cascio, Ethan G. Lewis, and Aryen Shrestha

蝌蚪网 Papers and Proceedings, May 2026

The Immigration and Nationality Act of 1965 imposed, for the first time in US history, annual numerical restrictions on lawful immigration from the Western Hemisphere. This paper introduces and implements a method for estimating highly granular local unau...

Unlocking Occupational Opportunity: The Labor Market Effects of DACA

By Aimee Chin, Kalena E. Cortes, and Camila Morales

蝌蚪网 Papers and Proceedings, May 2026

US hiring laws shape the types of jobs undocumented migrants can access, often limiting them to roles with low detection risk. The Deferred Action for Childhood Arrivals (DACA) program granted temporary work authorization to undocumented childhood arrival...

OPT Reforms and the Relative Supply of STEM Skills

By Catalina Amuedo-Dorantes and Kevin Shih

蝌蚪网 Papers and Proceedings, May 2026

Since the late 2000s, reforms to the optional practical training (OPT) program have allowed international STEM graduates to work in the United States for up to three years after graduation. We study how these reforms affected the supply of STEM skills in ...

Do Embedded Supports Promote Engaged聽Learning? Experimental Evidence on Resource Use among聽Community College Students

By Kelli A. Bird and Benjamin L. Castleman

蝌蚪网 Papers and Proceedings, May 2026

We report results from an experimental evaluation of an intervention in which tutoring and advising services were embedded directly into 鈥済ateway鈥� community college courses and targeted to students identified by faculty and staff as at risk of not com...

School鈥檚 in for Summer? The Effect of Encouraging Summer Community College Enrollment

By Scott E. Carrell, Michal Kurlaender, Paco Martorell, and Christina Sun

蝌蚪网 Papers and Proceedings, May 2026

We present evidence from a field experiment examining whether encouraging summer community college enrollment affects early postsecondary outcomes. Graduating high school seniors, participating in a college intentions survey, were randomly assigned to rec...

When Intensity Meets Modality: The Effects of Condensed Course Formats in Online and In-Person Instruction

By XunFei Li and Di Xu

蝌蚪网 Papers and Proceedings, May 2026

Condensed courses, which deliver the same instructional content over a shorter time frame, have been increasingly used by colleges to expand scheduling flexibility. Emerging evidence suggests that these formats often improve course performance, but little...

Inducing Cross-Sector Enrollment for Community College Students through Burden Reduction

By Rachel Baker, Michael Hill, Gala Ledezma, Joshua Dorman, Loris Fagioli, Pablo Bezem, Michael Cooper, and XunFei Li

蝌蚪网 Papers and Proceedings, May 2026

Although most community college聽students聽intend to earn聽a bachelor鈥檚 degree, few successfully transfer聽to a聽four-year university. California鈥檚 cross-enrollment policy聽was intended聽to reduce transfer barriers by allowing community college studen...

Leveraging Subjective Expectations for Production Functions

By Steve Bond, Agnes Norris Keiller, 脕耻谤别辞 de Paula, and John Van Reenen

蝌蚪网 Papers and Proceedings, May 2026

Norris Keiller, de Paula, and Van Reenen (2024) (NPR) propose estimating production functions using firms' subjective expectations of聽future output and inputs, data which are becoming increasingly available in surveys. This note compares their proposed e...

Production Functions under Imperfect Competition: A Quality-Equivalent Cournot Model

By Daniel A. Ackerberg and Jan De Loecker

蝌蚪网 Papers and Proceedings, May 2026

We discuss the limitations of using unit quantity data to measure output in the estimation of production functions. We introduce a simple model, the quality-equivalent Cournot model, where revenue or deflated revenue is the preferable measure of output as...

A Generalized Control Function Approach to Production Function Estimation

By Ulrich Doraszelski and Lixiong Li

蝌蚪网 Papers and Proceedings, May 2026

We develop a generalized control function approach to production function estimation. Our approach accommodates settings in which productivity evolves jointly with other unobservable factors such as latent demand shocks and the invertibility assumption un...

Dynamic Difference-in-Differences with Interference

By Ruonan Xu

蝌蚪网 Papers and Proceedings, May 2026

Interference/spillover is a common concern in place-based policy evaluation. This paper develops a difference-in-differences framework that accounts for interference using panel data with multiple posttreatment periods and potentially staggered treatment ...

When Should Pre-trends Be Parallel?

By Dalia Ghanem, Pedro H. C. 厂补苍迟鈥橝苍苍补, and Kaspar 奥眉迟丑谤颈肠丑

蝌蚪网 Papers and Proceedings, May 2026

We analyze pre-trends tests through the lens of how units select into treatment. We derive necessary and sufficient conditions for pre-trends and trends to be parallel with and without covariates. These conditions show that even in the absence of structur...

Event Studies with Feedback

By Irene Botosaru and Laura Liu

蝌蚪网 Papers and Proceedings, May 2026

Event studies often conflate direct treatment effects with indirect effects operating through endogenous covariate adjustment. We develop a dynamic panel event study framework that separates these effects. The framework allows for persistent outcomes and ...