Scaling Theory #25 – Cristina Bicchieri: The Scaling of Norms
Nov 18, 2025
Cristina Bicchieri, a leading authority on social norms and the Director of the Center for Social Norms and Behavioral Dynamics at the University of Pennsylvania, explores the intriguing dynamics of norm formation. She discusses how norms emerge and can tip or collapse, the relationship between norms and legal frameworks, and the impact of digital behaviors outpacing regulation. Her insights into scalable norms, collective sanctioning, and the importance of local responses in policymaking provide a fresh perspective on behavior change and societal regulation.
AI Snips
Chapters
Books
Transcript
Episode notes
Measuring Norms Requires Reference Networks
- Cristina Bicchieri measures norms by surveying empirical and normative expectations within a clear reference network.
- She then uses vignette experiments to test whether changing expectations causally changes behavior.
Sanitation Project Showed Descriptive Norms Scale
- In a Gates Foundation sanitation project, showing truthful rising latrine adoption created a descriptive norm and increased uptake.
- Small communities later reinforced change by collectively sanctioning noncompliance, making the shift stick.
Watch For Multiple Tipping Signals
- Monitor a growing gap between empirical and normative expectations and check for low individual thresholds.
- Also probe hidden private opposition and visible elite violations to detect approaching tipping points.
