Market Structure is rules shape competition. It sits in the Systems dimension (SYS) of the Human Behavior Taxonomy™ as element HBT-SYS-0031, within the Level 5 family. The core principle: rules shape competition. 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
Rules shape competition
Plain-English Definition
Rules shape competition
Feynman Explanation
Rules shape competition
Core Principle
Rules shape competition
Mechanisms
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Inputs (Triggers)
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Outputs (Behaviors)
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Behavioral Signature
Rules shape competition
Examples
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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 operates in the Systems dimension — what larger systems shape behavior?. You can recognize it in the field by its signature: rules shape competition. 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, this element is exploited the ordinary way: someone discovers that triggering it is cheaper than earning the outcome it stands in for. 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 make the desired behavior observable, remove whatever currently pays for its opposite, and attach the reward to the behavior rather than to the noisy outcome downstream of it. 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
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Design Principles
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Measurement Approaches
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Evidence
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The Perverse Incentive Lens™
How this behavior is exploited — and how to redesign around it.
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Interactive Mini Network
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Knowledge Graph Neighbors
Auto-linked to the rest of the Human Behavior Taxonomy by family, domain, dimension, and shared keywords.
Complex adaptive systems
Patterns between two people
The context that shapes behavior
Laws, systems, and governance
Structures enable or constrain
Unwritten rules guide behavior
Approach motivation — pursuit of rewards and goals.
Avoidance motivation — sensitivity to punishment, uncertainty, and threat.
Profit, penalties, and prices
Prices & info guide attention
Systems that gain from disorder.
Seeks connection and safety
Where Market Structure 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.
- 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 Market Structure
- What is Market Structure?
- Market Structure is rules shape competition. It sits in the Systems dimension (SYS) of the Human Behavior Taxonomy™ as element HBT-SYS-0031, within the Level 5 family. The core principle: rules shape competition. In incentive terms, it matters because it changes the payoff people perceive before they choose — which means it can be designed for, or exploited.
- How is Market Structure exploited?
- It is exploited when triggering the behavior becomes cheaper than producing the outcome the behavior is supposed to signal — the standard perverse-incentive path.
- How do you design around Market Structure?
- Name the behavior you want in observable terms, remove what currently pays for the opposite, attach the reward to the behavior rather than a lagging proxy, and publish how you will detect gaming.
- Which behavioral dimension does Market Structure belong to?
- Market Structure is classified in the Systems dimension (SYS) of the Human Behavior Taxonomy™, family "Level 5", class "Behavioral Force". Its permanent identifier is HBT-SYS-0031 and its evidence grade is B.