Social Contagion is ideas, behaviors, and attitudes spread through social networks. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0626, within the Social family. The core principle: ideas, behaviors, and attitudes spread through social networks. In incentive terms, it matters because it changes the payoff people perceive before they choose — which means it can be designed for, or exploited.
Scientific Definition
Ideas, behaviors, and attitudes spread through social networks.
Plain-English Definition
Ideas, behaviors, and attitudes spread through social networks.
Feynman Explanation
Networks transmit more than messages.
Core Principle
Ideas, behaviors, and attitudes spread through social networks.
Mechanisms
Pending editorial review.
Ideas, behaviors, and attitudes spread through social networks.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Network structure shapes strategic outcomes as much as content.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
Networks transmit more than messages.
Examples
- Quiet quitting, return-to-office sentiment, AI adoption — all socially contagious.
- Network structure shapes strategic outcomes as much as content.
Pending editorial review.
Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
Most organizations meet this element as a personnel problem. It is not one. The mechanism underneath it is straightforward: ideas, behaviors, and attitudes spread through social networks. You can recognize it in the field by its signature: networks transmit more than messages. Every element in the Cognition dimension changes the perceived payoff of an action before the action happens, which is exactly where incentive design has leverage.
How it gets exploited
Left undesigned, network structure shapes strategic outcomes as much as content. It is amplified whenever network structure shapes strategic outcomes as much as content. Inside organizations that shows up as network structure shapes strategic outcomes as much as content. The pattern is the same one Goodhart's Law describes: the measurable proxy attracts the effort, and the purpose behind it quietly loses funding.
How the Lab designs around it
The redesign move is to map influence networks. Trends seed at hubs. The test of any redesign here is simple: after the change, can you name what the organization is now doing less of? If not, the payoff structure did not actually move.
Famous Experiments
Pending editorial review.
Design Principles
- Map influence networks. Trends seed at hubs.
Measurement Approaches
Pending editorial review.
Evidence
Pending editorial review.
Pending editorial review.
The Perverse Incentive Lens™
How this behavior is exploited — and how to redesign around it.
- Map influence networks. Trends seed at hubs.
Pending editorial review.
Pending editorial review.
Interactive Mini Network
Click any neighbor to re-center the graph and follow the threads of connection.
Knowledge Graph Neighbors
Auto-linked to the rest of the Human Behavior Taxonomy by family, domain, dimension, and shared keywords.
Behaviors spread through groups via observation and imitation.
Avoiding contact with people or things perceived as 'contaminated'.
Symptoms or beliefs spread through a group with no underlying physical cause.
A group decides on a course of action that nobody actually wants, because everyone assumes others prefer it.
Power tends to corrupt, and absolute power corrupts absolutely.
We attribute our own actions to situations but others' actions to their character.
We favor people who are similar to us or who like us.
Sacrificing for others without expecting a personal reward.
Masking the sponsors of a message to make it appear grassroots.
Disagreement grows more extreme as the parties think more about the issue.
Systematic errors in explaining the causes of behavior — yours or others'.
We accept vague, general statements as personally meaningful.
Where Social Contagion is cited in the corpus
Essays, field guides, and diagnostics from The Incentives Lab that apply this element.
- EssayGoodhart's Law in the Real World
How measurable proxies capture judgment.
- EssayThe Perverse Incentives Hiding in Your KPIs
Cognitive shortcuts turned into scorecards.
- EssayAI Agents Inherit Your Incentives
How this element propagates into automated systems.
- CourseIncentives 101
The free ten-part primer on reading a payoff structure.
- ReferenceThe Periodic Table of Human Behavior
The full 1,267-element map this page belongs to.
Questions about Social Contagion
- What is Social Contagion?
- Social Contagion is ideas, behaviors, and attitudes spread through social networks. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0626, within the Social family. The core principle: ideas, behaviors, and attitudes spread through social networks. In incentive terms, it matters because it changes the payoff people perceive before they choose — which means it can be designed for, or exploited.
- What is an example of Social Contagion?
- Network structure shapes strategic outcomes as much as content. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-COG-0626).
- How is Social Contagion exploited?
- Network structure shapes strategic outcomes as much as content.
- How do you design around Social Contagion?
- Map influence networks. Trends seed at hubs.
- Which behavioral dimension does Social Contagion belong to?
- Social Contagion is classified in the Cognition dimension (COG) of the Human Behavior Taxonomy™, family "Social", class "Mental Model". Its permanent identifier is HBT-COG-0626 and its evidence grade is B.