Skip to main content
Center for Behaviorial Institutional Design
A business man walking down a street

Predicting social tipping and norm change in controlled experiments

In the recent publication of Proceedings of the National Academy of Sciences, Volume 118, Article number: e2014893118 (2021), James Andreoni, Nikos Nikiforakis and Simon Siegenthaler address the complexities surrounding social tipping—instances when a society transitions from one social norm to another in a short time period. By employing a large-scale laboratory experiment, the researchers explore the conditions that facilitate or hinder the abandonment of detrimental norms, particularly in the context of social welfare. Read here: https://doi.org/10.1073/pnas.2014893118

Key findings include:

  • The authors validate a threshold model that successfully predicts societal shifts in norms with a remarkable accuracy of 96%. This model enhances our understanding of the mechanics behind norm change.
  • Despite a common awareness of the desirability of social change, detrimental norms can persist due to the high costs of instigating change.
  • Interventions that foster a collective recognition of the benefits associated with changing norms prove to be effective strategies for coordinating individuals and encouraging them to discard harmful behaviors.
  • Individuals who take the initiative to instigate social change are generally more risk-tolerant and less conformist, highlighting important traits of effective change agents.
Diagram showing the tipping point

Norm abandonment as a function of the tipping threshold. The tipping threshold is a critical determinant of the likelihood to observe change. Each marker represents the percentage of subjects in the last five periods that abandoned Blue in a given experimental society. Also shown is the theoretically predicted frequency of norm abandonment (solid line) and 99% CI (shaded area) from 10,000 simulated trials per tipping threshold based on the estimated parameters  = 1.73 and  (Probit model with society random effects) The theoretical predictions correctly anticipate norm persistence or norm abandonment in 23 of the 24 societies (i.e., in 96% of instances). The model provides a similarly good fit when using a subset of the conditions to estimate μ and σ and use them to perform out-of-sample predictions

This research significantly contributes to our understanding of social dynamics and offers actionable insights for policymakers seeking to promote beneficial norm changes. By revealing the mechanisms underlying social tipping points, the study identifies strategic avenues for addressing critical challenges, including social equity and environmental sustainability.


This study exemplifies C-BID's commitment to advancing scientific knowledge that informs public policy and societal change. Our research emphasizes the relevance of predictive models in understanding human behavior and the importance of fostering environments conducive to positive social transformations, ultimately advancing societal welfare.

Authors

Portrait of James Andreoni

James Andreoni

University of California

Portrait of Nikos Nikiforakis

Nikos Nikiforakis

NYU Abu Dhabi

Portrait of Simon Siegenthaler

Simon Siegenthaler

University of Texas at Dallas

C-BID logo

New York University Abu Dhabi

Saadiyat Island

Abu Dhabi

United Arab Emirates

nyuad.cbid@nyu.edu

Privacy policy

Accessibility policy

NYU Abu Dhabi logo

© Center for Behavioral Institutional Design, 2025.

X icon
YouTube icon
LinkedIn icon