Collective Evidence on Behavioral Interventions Targeting Carbon Pricing Support: A Many-Designs Approach with 55 Studies

Collective Evidence on Behavioral Interventions Targeting Carbon Pricing Support: A Many-Designs Approach with 55 Studies | Research Square Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Help Center Sign In Submit a Preprint Cite Share Download PDF Social Sciences - Article Collective Evidence on Behavioral Interventions Targeting Carbon Pricing Support: A Many-Designs Approach with 55 Studies Juergen Huber, Armando Holzknecht, Rene Schwaiger, Esther Blanco, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8797610/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract There is an urgent need to reduce carbon emissions globally to limit the damages caused by climate change. Most economists agree that a carbon price is an effective and cost-efficient policy to mitigate emissions, yet low public acceptance and limited political support remain major barriers to its widespread implementation. This crowdsourced "many-designs" project presents results from 55 behavioral interventions on real-world support for carbon pricing, independently developed by international research teams randomly selected from an initial pool of 135 applications. By implementing the interventions simultaneously with almost 20,000 U.S. residents, this pre-registered study ensures the comparability of results, accelerates scientific knowledge generation, and reduces the risk of scientific malpractices. The results show very small positive but statistically significant effects of behavioral interventions on real-world support, and stated support, including the willingness to endorse a carbon price that internalizes the social costs of $120 per ton of CO2 emissions (Cohen's d's: 0.04-0.08). Put differently, this entails an increase in support for carbon pricing across measures of around two percentage points. Furthermore, the results reveal low-to-medium between-study heterogeneity (τ: 0.07-0.12, I^2: 32%-57%). Lastly, we identify strong overconfidence among research teams regarding the expected effects of their interventions and those of their peers, indicating a potential miscalibration of community expectations. Scientific community and society/Social sciences/Climate change/Climate-change mitigation Scientific community and society/Social sciences/Psychology/Human behaviour Earth and environmental sciences/Environmental social sciences/Climate-change policy Earth and environmental sciences/Environmental social sciences/Environmental economics Metascience Behavioral Interventions Climate Science Full Text Additional Declarations There is NO Competing Interest. Cite Share Download PDF Status: Under Review Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information

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