Proceedings of the National Academy of Sciences

2018 - 2026

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Volume 123, issue 9, 2026

The theory of epidemics with altruism pp. e2518893123

Mark P. Lynch, Simon K. Schnyder, John J. Molina, Ryoichi Yamamoto and Matthew S. Turner

Volume 123, issue 8, 2026

Democratizing space: India’s frugal space innovation provides key lessons for emerging nations pp. e2514657123

Luisa Corrado, Soniya Gupta-Rawal, Paul Kattuman and Jaideep Prabhu

Volume 123, issue 7, 2026

What is the general Welfare: Welfare economic perspectives on equity pp. e2529376123

Charles F. Manski

Volume 123, issue 6, 2026

The racial and ethnic gap in behavioral measures rivals the gender gap in the United States pp. e2527671123

Aurélie Dariel, John C. Ham, Nikos Nikiforakis and Jan Stoop

Volume 123, issue 4, 2026

Optimization via the strategic law of large numbers pp. e2519845123

Xiaohong Chen, Zengjing Chen, Wayne Yuan Gao, Xiaodong Yan and Guodong Zhang

Volume 123, issue 1, 2026

Computer-assisted learning in the real world: How Khan Academy influences student math learning pp. e2507708123

Taryn Eames, Emma Brunskill, Bogdan Yamkovenko, Kodi Weatherholtz and Philip Oreopoulos

Volume 122, issue 52, 2025

Heterogeneous conditions and power law robustness in intergenerational resource transfers pp. e2514196122

Matthew A. Cheung and Simon A. Levin

Volume 122, issue 48, 2025

Simulating human well-being with large language models: Systematic validation and misestimation across 64,000 individuals from 64 countries pp. e2519394122

Pat Pataranutaporn, Nattavudh Powdthavee, Chayapatr Archiwaranguprok and Pattie Maes

Stochastic responses and marginal valuation pp. e2520857122

Lars Peter Hansen and Panagiotis Souganidis

Volume 122, issue 46, 2025

Wildfires have created instability within risk transfer markets. Here’s a path forward pp. e2530050122

Matthew P. Thompson, David E. Calkin, Donald M. MacGregor, Bryce A. Young, Kimiko Barrett, Erica C. Fischer and Jesse V. Johnson

Volume 122, issue 45, 2025

The lower boundary of workplace mistreatment: Do small slights matter? pp. e2503650122

Michal Hodor, Liat Eldor and Peter Cappelli

Volume 122, issue 40, 2025

The impact of air pollution on petcare utilization pp. e2504553122

Stephen Jarvis, Olivier Deschenes, Akshaya Jha and Alan D. Radford

Addressing the broader implications of AI–AI bias in decision-making systems pp. e2521127122

Zekai Yu

Volume 122, issue 39, 2025

A spatially differentiated water pollution policy leads to economic and health inequity pp. e2421404122

Zhonghui Luo, Lala Ma, Rui Xie and Ran Song

Investigating the effects of single-dose intranasal testosterone on economic preferences in a large randomized trial of men pp. e2508519122

Anna Dreber, Magnus Johannesson, Gideon Nave, Coren L. Apicella, Shawn N. Geniole, Taisuke Imai, Erik L. Knight, Dylan Manfredi, Pranjal H. Mehta, Valentina Proietti, Steven J. Stanton, Alina Zeltikova, Francesca R. Luberti, Triana Ortiz and Justin M. Carré

Volume 122, issue 38, 2025

The power of bridging decision scales: Model coupling for advanced climate policy analysis pp. e2411592122

Tatiana Filatova, Joos Akkerman, Francesco Bosello, Theodoros Chatzivasileiadis, Ignasi Cortés Arbués, Amineh Ghorbani, Olga Ivanova, Nina Knittel, Jan Kwakkel, Francesco Lamperti, Nicholas R. Magliocca, Giacomo Marangoni, Stefan Nabernegg, Anton Pichler, Adrian Poujon, Karolina Safarzynska, Alessandro Taberna, Mariësse A. E. van Sluisveld, Liz Verbeek and Taoyuan Wei

Volume 122, issue 37, 2025

Driving the grid forward: How electric vehicle adoption shapes power system infrastructure and emissions pp. e2420609122

Lily Hanig, Corey D. Harper, Destenie Nock and Jeremy J. Michalek

The coherence of US cities pp. e2501504122

Simone Daniotti, Matté Hartog and Frank Neffke

Volume 122, issue 35, 2025

Using large language models to categorize strategic situations and decipher motivations behind human behaviors pp. e2512075122

Yutong Xie, Qiaozhu Mei, Walter Yuan and Matthew Jackson

Volume 122, issue 33, 2025

The edge-averaging process on graphs with random initial opinions pp. e2423947122

Dor Elboim, Yuval Peres and Ron Peretz

Volume 122, issue 31, 2025

AI–AI bias: Large language models favor communications generated by large language models pp. e2415697122

Walter Laurito, Benjamin Davis, Peli Grietzer, Tomáš GavenÄ Iak, Ada Böhm and Jan Kulveit

Volume 122, issue 30, 2025

Implementation science aims to improve healthcare by validating effective interventions pp. e2517704122

John Carey

Volume 122, issue 26, 2025

Generative AI without guardrails can harm learning: Evidence from high school mathematics pp. e2422633122

Hamsa Bastani, Osbert Bastani, Alp Sungu, Haosen Ge, Özge Kabakcı and Rei Mariman

Institutions of public judgment established by social contract and taxation pp. e2506537122

Taylor A. Kessinger and Joshua B. Plotkin

Volume 122, issue 25, 2025

Heterogeneity, reinforcement learning, and chaos in population games pp. e2319929121

Jakub Bielawski, Thiparat Chotibut, Fryderyk Falniowski, Michał Misiurewicz and Georgios Piliouras

Perceptual interventions ameliorate statistical discrimination in learning agents pp. e2319933121

Edgar A. Duéñez-Guzmán, Ramona Comanescu, Yiran Mao, Kevin R. McKee, Ben Coppin, Suzanne Sadedin, Silvia Chiappa, Alexander S. Vezhnevets, Michiel A. Bakker, Yoram Bachrach, William Isaac, Karl Tuyls and Joel Z. Leibo

Volume 122, issue 24, 2025

Impact of large-scale solar on property values in the United States: Diverse effects and causal mechanisms pp. e2418414122

Chenyang Hu, Zhenshan Chen, Pengfei Liu, Wei Zhang, Xi He and Darrell Bosch

Volume 122, issue 23, 2025

The prevalence of functional limitations in the US workforce pp. e2413663122

Hailey Clark, Bastian Ravesteijn, Kathleen J. Mullen and Nicole Maestas

High-frequency monitoring enables machine learning–based forecasting of acute child malnutrition for early warning pp. e2416161122

Susana Constenla-Villoslada, Yanyan Liu, Linden McBride, Clinton Ouma, Nelson Mutanda and Christopher Barrett

Volume 122, issue 22, 2025

Estimating wage disparities using foundation models pp. e2427298122

Keyon Vafa, Susan Athey and David M. Blei

Volume 122, issue 19, 2025

Why does AI hinder democratization? pp. e2423266122

C. Y. Cyrus Chu, Juin-Jen Chang and Chang-Ching Lin

Volume 122, issue 18, 2025

Using pledges to improve the effectiveness of environmental information campaigns: The case of biowaste recycling pp. e2414578122

Eduard Alonso-Paulí, Pau Balart, Lara Ezquerra and Iñigo Hernandez-Arenaz

Volume 122, issue 14, 2025

The rising income gradient in life expectancy in Sweden over six decades pp. e2418145122

Johannes Hagen, Lisa Laun, Charlotte Lucke and Mårten Palme

Academic achievement helps coordination on mutually advantageous outcomes pp. e2420306122

Isabelle Brocas and Juan D. Carrillo

Unbalanced growth and land overvaluation pp. e2423295122

Tomohiro Hirano and Alexis Akira Toda

Volume 122, issue 12, 2025

Maintaining cooperation through vertical communication of trust when removing sanctions pp. e2415010122

Ann-Christin Posten, Pınar Uğurlar, Sebastian Kube and Joris Lammers

Volume 122, issue 11, 2025

Physical proximity drives gay discrimination in the gig economy pp. e2412362122

David Smerdon, Samuel Pearson and Sabina Albrecht

Poverty alleviation resettlement in China reduces deforestation pp. e2421526122

Feifei Chen, Wei Chen and Huanguang Qiu

Volume 122, issue 9, 2025

Understanding Nash epidemics pp. e2409362122

Simon K. Schnyder, John J. Molina, Ryoichi Yamamoto and Matthew S. Turner

Critical fragility in sociotechnical systems pp. e2415139122

José Moran, Frank P. Pijpers, Utz Weitzel, Jean-Philippe Bouchaud and Debabrata Panja

Policy options for the drug pricing conundrum pp. e2418540122

Kate Ho and Ariel Pakes

Volume 122, issue 6, 2025

Identifying new classes of financial price jumps with wavelets pp. e2409156121

Cecilia Aubrun, Rudy Morel, Michael Benzaquen and Jean-Philippe Bouchaud

Microlevel structural poverty estimates for southern and eastern Africa pp. e2410350122

Elizabeth Tennant, Yating Ru, Peizan Sheng, David S. Matteson and Christopher Barrett

Robust inattentive discrete choice pp. e2416643122

Lars Hansen, Jianjun Miao and Hao Xing

Human beauty illustrates the economic impact of heritable physical traits pp. e2418424122

Daniel Hamermesh and Anwen Zhang

Top-performing girls are more impactful peer role models than boys, teachers say pp. e2421436122

Sofoklis Goulas, Rigissa Megalokonomou and Panagiotis Sotirakopoulos

Volume 122, issue 4, 2025

Violence against women and girls research: Leveraging gains across disciplines pp. e2404557122

Kathryn Falb, Amber Peterman, Ragnhild Nordås, Anjalie Field, Roni Porat and Lindsay Stark

Behavioral nudges prevent loan delinquencies at scale: A 13-million-person field experiment pp. e2416708122

Robert Kuan, Kristin Blagg, Benjamin L. Castleman, Rajeev Darolia, Jordan D. Matsudaira, Katherine Milkman and Lesley Turner

Valuing the benefits of reducing firearm violence in the United States pp. e2419864122

Philip J. Cook, Marc Jeuland and Jens Ludwig

Volume 122, issue 3, 2025

Glyphosate exposure and GM seed rollout unequally reduced perinatal health pp. e2413013121

Emmett Reynier and Edward Rubin

Volume 122, issue 1, 2025

The unequal adoption of ChatGPT exacerbates existing inequalities among workers pp. e2414972121

Anders Humlum and Emilie Vestergaard