Joe B. Bak-Coleman

Collective Behavior, Computational Social Science, Metascience, Statistics.

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Based in Queens, NY

I’m a computational social scientist whose research explores how collectives make decisions in the face of uncertainty, focusing on the impact of digital technologies on collective behavior. Currently, I am a research scientist at the University of Washington, an External Applied Complexity Fellow at the Santa Fe Institute, an external affiliate at the Harvard Berkman Klein Center and a Collaboration Partner at the University of Konstanz’s Centre for the Advanced Study of Collective Behaviour. My work spans topics such as misinformation, polarization, and the development of evidence-based tech policy, with work in Nature, Science Advances, and PNAS. I have a forthcoming book, Of Fish and Fascists, set for release in 2027 by Princeton University Press.

Before my current role, I served as a Consulting Expert for the United Nations Development Programme Human Development Reports Office, and an Associate Research Scholar at Columbia University’s Craig Newmark Center for Journalism Ethics and Security. I earned my Ph.D. in Ecology and Evolutionary Biology from Princeton University in 2020, where I worked with Iain Couzin and Dan Rubenstein, followed by a postdoctoral fellowship at the University of Washington’s Center for an Informed Public. Over the past decade, my research has examined decision-making in human and animal collectives, from fish schools and zebra herds to social media users and scientists.

news

Jan 20, 2026 Our preprint on industry influence in social media research was covered by Science: Nearly one-third of social media research has undisclosed ties to industry.
Nov 04, 2025 Gave the CITP Seminar at Princeton on Scientific Barriers to Evidence-Based Tech Policywatch the recording.
Oct 22, 2025 New preprint on The Risks of Industry Influence in Tech Research, with Cailin O’Connor, Carl Bergstrom, and Jevin West.
Jul 28, 2025 Taught as faculty at the Santa Fe Institute’s Complexity Global School for Emerging Political Economies in Bogotá, Colombia.
May 06, 2025 The UNDP’s flagship Human Development Report 2025, A matter of choice: People and possibilities in the age of AI, was released, for which I served as a Consulting Expert.
May 01, 2025 Returned to the University of Washington as a Research Scientist in the Department of Biology, after joining the Santa Fe Institute as an External Applied Complexity Fellow earlier in 2025.
Sep 24, 2024 The Protzko et al. study was retracted from Nature Human Behaviour following concerns I raised, as covered by The Chronicle of Higher Education.
Feb 07, 2024 New paper in Science Advances: Addressing climate change with behavioral science — a global intervention tournament in 63 countries.

selected publications

  1. Randomized controlled trials cannot identify social media’s causal effects
    Joseph Bak-Coleman
    Nature Reviews Psychology, 2025
  2. AI, peer review and the human activity of science
    Carl T Bergstrom and Joe Bak-Coleman
    Nature, 2025
  3. Addressing climate change with behavioral science: A global intervention tournament in 63 countries
    M. Vlasceanu\textsuperscript, K. Doell, J. Bak-Coleman, and 1 more author
    Science Advances, 2024
  4. Stewardship of Global Collective Behavior
    J. Bak-Coleman, M. Alfano, W. Barfuss, and 12 more authors
    PNAS, 2021
  5. Combining interventions to reduce the spread of viral misinformation
    J. Bak-Coleman, I. Kennedy, M. Wack, and 5 more authors
    Nature Human Behavior, May 2022