Unintended Consequences is actions have effects that were not planned or anticipated. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0687, within the Systems family. The core principle: actions have effects that were not planned or anticipated. 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
Actions have effects that were not planned or anticipated.
Plain-English Definition
Actions have effects that were not planned or anticipated.
Feynman Explanation
Every intervention has a shadow.
Core Principle
Actions have effects that were not planned or anticipated.
Mechanisms
Pending editorial review.
Actions have effects that were not planned or anticipated.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Pending editorial review.
Second-order effects are the rule, not the exception.
Inputs (Triggers)
Pending editorial review.
Outputs (Behaviors)
Pending editorial review.
Behavioral Signature
Every intervention has a shadow.
Examples
- A well-meaning policy creates a loophole that makes things worse.
- Second-order effects are the rule, not the exception.
Pending editorial review.
Original analysis from The Incentives Lab — how this element behaves inside real payoff structures.
Why this element matters to incentive design
The mistake with this element is treating it as irrationality. It is almost always a rational response to a payoff nobody wrote down. The mechanism underneath it is straightforward: actions have effects that were not planned or anticipated. You can recognize it in the field by its signature: every intervention has a shadow. 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, second-order effects are the rule, not the exception. It is amplified whenever second-order effects are the rule, not the exception. Inside organizations that shows up as second-order effects are the rule, not the exception. 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 pre-mortem and red-team policies before rollout. 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
- Pre-mortem and red-team policies before rollout.
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.
- Pre-mortem and red-team policies before rollout.
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.
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A system's throughput is constrained by its single slowest step.
Small visible disorders signal that bigger ones will be tolerated.
Adding manpower to a late software project makes it later.
Adding people to a late project makes it later.
A substance that speeds up a reaction without being consumed.
Nonlinear systems are highly sensitive to initial conditions.
Inputs combine under conditions to produce new outputs — sometimes irreversibly.
Software architecture mirrors org structure.
Working together has a cost that scales with the number of people.
The threshold at which a system becomes self-sustaining.
Where Unintended Consequences 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 incentive glossary
Definitions for every mental model, bias, and fallacy in the corpus.
- ReferenceThe Periodic Table of Human Behavior
The full 1,267-element map this page belongs to.
Questions about Unintended Consequences
- What is Unintended Consequences?
- Unintended Consequences is actions have effects that were not planned or anticipated. It sits in the Cognition dimension (COG) of the Human Behavior Taxonomy™ as element HBT-COG-0687, within the Systems family. The core principle: actions have effects that were not planned or anticipated. 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 Unintended Consequences?
- Second-order effects are the rule, not the exception. The Incentives Lab catalogs everyday, organizational, and historical instances of this element on its Human Behavior Taxonomy™ page (HBT-COG-0687).
- How is Unintended Consequences exploited?
- Second-order effects are the rule, not the exception.
- How do you design around Unintended Consequences?
- Pre-mortem and red-team policies before rollout.
- Which behavioral dimension does Unintended Consequences belong to?
- Unintended Consequences is classified in the Cognition dimension (COG) of the Human Behavior Taxonomy™, family "Systems", class "Mental Model". Its permanent identifier is HBT-COG-0687 and its evidence grade is B.