Contagion Bias
Avoiding contact with people or things perceived as 'contaminated'.
"Bad luck, like bad news, is treated as contagious."
What is Contagion Bias? Avoiding contact with people or things perceived as 'contaminated'. Association-based avoidance blocks good opportunities.
A team avoids a project because a failed leader once touched it.
Association-based avoidance blocks good opportunities.
Separate the object from its history with evidence.
Use the model. Pick the move.
Avoiding contact with people or things perceived as 'contaminated'. You've just seen this: A team avoids a project because a failed leader once touched it. Which lever does the model recommend?
Pick a lever. There are no neutral ones — every incentive funds a behavior somewhere.
Pick a reaction to Contagion Bias
One tap. We'll point you at the most useful next surface based on how this hits.
The full taxonomy entry
Every concept in the Atlas uses the same structure — so Contagion Bias can be compared, recombined, and cited like an element on a periodic table.
- Business
- Leadership
- Government
- Healthcare
- Education
- Sales
- Marketing
- AI
- Negotiation
- Media
- Public Policy
- Relationships
- Where in our org would Contagion Bias most often show up unnoticed?
- Which metric, ritual, or contract clause quietly rewards Contagion Bias?
- If we removed every payoff for Contagion Bias, what behavior would replace it?
- Who benefits when Contagion Bias persists — and who pays the cost?
- People defend the status quo using the language of contagion bias.
- Decisions cluster around the easiest narrative rather than the strongest evidence.
- New data changes the slide deck but not the decision.
- Anyone naming the pattern is treated as the problem.
Every Atlas entry is a node in a knowledge graph. See the related rail below to follow the connections.
See Contagion Bias through 4 lenses
Each layer of the Incentives OS reframes this concept with its own thinkers, vocabulary, and diagnostic question.
- Layer 2Behavioral Economics
Which biases are most likely operating right now?
- Layer 8Organizational Psychology
What is the org actually rewarding — versus claiming to reward?
- Layer 15AI & Alignment
What proxy reward is the AI optimizing — and what is it ignoring?
- Layer 21Mental Models & Mastery
Which model — or stack of models — are we missing here?
Do you actually know Contagion Bias?
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Which best describes Contagion Bias?
Worked example, counter-example & concept map
On-demand AI analysis grounded in the Lab's research. Cached on your device after first run.
When you encounter Contagion Bias, your default mode network folds the experience into your ongoing story-of-self — which is why the same fact lands differently depending on who you think you are.
Self-referential thought, mind-wandering, narrative-of-self, mental time travel. Most of your waking thought is this network running scenarios about you, your status, your past, and your future.
See Default Mode in the Brain Atlas →Picked for you, from the Atlas
Ranked by shared learning paths, overlapping chips, and what you've saved.
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.
Send the card, not just the link
A pre-rendered social card with the title, eyebrow, and URL. Copy the link, post it anywhere, or download the SVG for slides.
More definitions to follow
Every term in the Atlas connects to a dozen others. Pick any of these and see where it takes you.
Donors penalize 'overhead' and starve capacity that produces outcomes.
Outcomes depend on aligning choices, not on who 'wins.'
Quarterly earnings drive quarterly behavior.
Mandatory federal sourcing from prison factories crowds out small business and entrenches inefficient production.
Systems should be understood as wholes, not just as collections of parts.
When a system in equilibrium is disturbed, it shifts to counteract the change.
Systems with weak corrective feedback drift unchecked into failure modes.
Herbert Simon's frame: agents use heuristics that work under real cognitive limits, not impossible global optima.
Humans need autonomy, competence, and relatedness.
A combination of complementary skills that produces compounding advantage greater than the sum of parts.
Productivity targets compress visits, raising misdiagnosis and burnout.
Drawing a conclusion from the absence of evidence rather than its presence.