Information Cascade is people copy the choices of others, assuming they have private information. It sits in the Systems dimension (SYS) of the Human Behavior Taxonomy™ as element HBT-SYS-0016, within the Social family. The core principle: people copy the choices of others, assuming they have private information. 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
People copy the choices of others, assuming they have private information.
Plain-English Definition
People copy the choices of others, assuming they have private information.
Feynman Explanation
The crowd is not wise. It is just following the first person who looked wise.
Core Principle
People copy the choices of others, assuming they have private information.
Mechanisms
Pending editorial review.
People copy the choices of others, assuming they have private information.
Pending editorial review.
Pending editorial review.
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Adoption and rejection can cascade without real information.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
The crowd is not wise. It is just following the first person who looked wise.
Examples
- A restaurant line forms because people assume the food is good.
- Adoption and rejection can cascade without real information.
Pending editorial review.
Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
This is one of the elements leaders describe as a values gap. It is a payoff gap. The mechanism underneath it is straightforward: people copy the choices of others, assuming they have private information. You can recognize it in the field by its signature: the crowd is not wise. It is just following the first person who looked wise. Every element in the Systems 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, adoption and rejection can cascade without real information. It is amplified whenever adoption and rejection can cascade without real information. Inside organizations that shows up as adoption and rejection can cascade without real information. 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 seek independent signals before joining the crowd. Watch for it at the boundaries: handoffs, promotions, incident reviews, and budget cycles are where this element gets its power.
Famous Experiments
Pending editorial review.
Design Principles
- Seek independent signals before joining the crowd.
Measurement Approaches
Pending editorial review.
Evidence
Pending editorial review.
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The Perverse Incentive Lens™
How this behavior is exploited — and how to redesign around it.
- Seek independent signals before joining the crowd.
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.
Systems that gain from disorder.
Approach motivation — pursuit of rewards and goals.
Avoidance motivation — sensitivity to punishment, uncertainty, and threat.
Map reinforcing (R) and balancing (B) feedback loops between variables to see system behavior.
A system with many interacting parts that learn and adapt.
Many interacting parts producing emergent behavior nobody designed.
Single-loop fixes the action. Double-loop questions the goal or model that produced it.
System 1 is fast, automatic, intuitive; System 2 is slow, effortful, deliberate.
Interdependent network of actors evolving together.
The whole has properties that the individual parts do not.
Systems maintain stability by self-regulating around a setpoint.
Subjects often converge to neoclassical predictions only after many rounds of feedback — not on the first try.
Where Information Cascade is cited in the corpus
Essays, field guides, and diagnostics from The Incentives Lab that apply this element.
- EssayPolicy Is Incentive Design
System-level payoff structures.
- Field guidePublic sector incentives
Budget rules, election cycles, blame avoidance.
- EssayAI Agents Inherit Your Incentives
How this element propagates into automated systems.
- ReferenceThe Periodic Table of Human Behavior
The full 1,267-element map this page belongs to.
- ReferenceThe incentive glossary
Definitions for every mental model, bias, and fallacy in the corpus.
Questions about Information Cascade
- What is Information Cascade?
- Information Cascade is people copy the choices of others, assuming they have private information. It sits in the Systems dimension (SYS) of the Human Behavior Taxonomy™ as element HBT-SYS-0016, within the Social family. The core principle: people copy the choices of others, assuming they have private information. 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 Information Cascade?
- Adoption and rejection can cascade without real information. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-SYS-0016).
- How is Information Cascade exploited?
- Adoption and rejection can cascade without real information.
- How do you design around Information Cascade?
- Seek independent signals before joining the crowd.
- Which behavioral dimension does Information Cascade belong to?
- Information Cascade is classified in the Systems dimension (SYS) of the Human Behavior Taxonomy™, family "Social", class "Mental Model". Its permanent identifier is HBT-SYS-0016 and its evidence grade is B.