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Research

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Effect of pharmacological treatment of attentiondeficit hyperactivity disorder on academic performance: registry-based population study , Lyhmann, Ingvild, Tarjei Widding-Havneraas, Simen Markussen, Henrik Daae Zachrisson, Felix Elwert, Ashmita Chaulagain, Ingvar Bjelland, Anne Halmøy, Arnstein Mykletun, British Journal of Psychiatry 1-8, 2026.
Comparing compliance effects and costs of hard and soft tax enforcement , Kotsadam, Andreas, Knut Løyland, O. Rauum, Gaute Torsvik, and Arnstein Øvrum, National Tax Journal Forthcoming, 2026.
An Evaluation of a National Program to Reduce Student Absenteeism in High School , Baker, Michael, Nina Drange, Hege Marie Gjefsen, Labour Economics Vol 102, 102918, 2026.
Educational expansion and the hidden reversal of the Flynn effect—Differential trends across socioeconomic strata , Bratsberg, Bernt, Anders M. Fjell, Ole J. Rogeberg, Kristine B. Walhovd, PNAS – Proceedings of the National Academy of Sciences of the United States of America 123(28)e2536089123, 2026.
Effekten av forskuttert sykelønn på sykefraværsadferd , King, Max-Emil M., Simen Markussen, Knut Røed, Søkelys på arbeidslivet Vol 43(2), 1-20, 2026.
Reconciling Estimates of the Long-Term Earnings Effect of Fertility , Bensnes, Simon, Ingrid Huitfeldt, Edwin Leuven, Journal of Labor Economics Forthcoming, 2026.
Targeting attitudes to combat sexual harassment: A randomized intervention in the Norwegian military , Folke, Olle, Torbjørn Hanson, Åshild A. Johnsen, Andreas Kotsadam, Johanna Rickne, Journal of Economic Behavior and Organization Vol 247, 107596, 2026.
Computational Reproducibility and Robustness of Empirical Economics and Political Science Research Between 2022 and 2023 , Brodeur, Abel et.al, nature 652(8108), 151-156, 2026.
Online Information is Not Sex Education: Evidence from a Wikipedia Access Experiment in Malawi , Derksen, Laura, Catherine Michaud-Leclerc, Ardyn Nordstrom, Journal of Health Economics Forthcoming, 2026.
Competition between green and blue hydrogen and indirect network effects , Aurland-Bredesen, Kine Josefine, Rolf Golombek, Mads Greaker, Journal of Environmental Economics and Management Vol 140, 103397, 2026.