Skip to content

Stated Preference

Version
v5 · 2026-09-28 · History
Prime #
1463
Domain group
Social Sciences
Origin domain
Economics & Finance
Subdomains
Preference Measurement, Survey Methodology, Machine Learning → Economics & Finance
Also from
Psychology & Behavioral Sciences
Aliases
Declared Preference, Expressed Preference, Elicited Preference, Self Report Preference
Related primes
Revealed Preference, Preference, Elicitation Channel Contribution

Core Idea

Stated preference infers what an agent values from what the agent reports when asked. The evidence is a solicited ranking, survey answer, willingness-to-pay statement, policy declaration, or other self-report rather than a costly choice made among real alternatives. This gives the method reach where no choice trace exists: hypothetical products, public goods, future contingencies, and alternatives the agent has never been able to choose.

The same reach creates its characteristic weakness. Reporting is often cheap, and the answer is produced through a designed elicitation channel. A response can therefore reflect hypothetical bias, strategic presentation, social desirability, misunderstanding, or the wording and scale of the instrument. Stated preference names the report-based access mode; it does not claim that the report is the underlying preference itself.

How would you explain it like I'm…

Just Ask Them

Stated preference is finding out what someone likes by asking them. You ask, 'Would you like a purple bike or a green bike?' and they tell you. That works even if purple bikes aren't in the store yet — but saying it is easy, and they might pick differently when it's real.

What People Say They Want

Stated Preference is a way of learning what people value by asking them, instead of watching what they actually pick. It's useful for things you can't watch someone choose yet, like a new park that hasn't been built or a toy that doesn't exist. But saying something is easy — it doesn't cost anything. The way a question is asked, who's listening, and how well people can guess their future choices all change the answer. So someone can honestly say one thing and still choose differently later.

Preference by Self-Report

Stated Preference means inferring what someone values from what they say when asked — rankings, survey answers, how much they'd be willing to pay — rather than from the choices they make when real options and consequences are on the table. Its big advantage is reach: you can ask about things behavior can't reveal yet, like a public good with no market, a product that doesn't exist, or a situation the person has never faced. Its weakness is that answers are usually cheap, since nothing is given up by naming a preference. Answers are also shaped by question wording, the order of options, social pressure, incentives, and people's limited ability to predict their own future behavior. So a stated preference can be completely sincere and still differ from what the person would actually choose; it's a window onto value, not the value itself.

 

Stated Preference is the evidence rule that infers an agent's valuation from what the agent reports when asked, as opposed to revealed preference, which infers it from choices made among real alternatives with real consequences. The data can be rankings, survey responses, declared willingness to pay, vote intentions, policy preferences, or even a model's generated statement of a preferred policy. Its justification is coverage: it reaches valuations that behavior cannot yet reveal — non-market public goods, nonexistent products, unfaced contingencies, options excluded from the current menu. Its cost is that reports are typically cheap talk (nothing is forgone by naming a preference) and channel-mediated: wording, ordering, response formats, social setting, incentives, and respondents' ability to forecast their own behavior all shape the recorded answer. Hence a sincere report can still diverge from what the same agent would choose. Stated preference names an access mode to valuation, not an identity between the spoken answer and the valuation.

Broad Use

  • Economics: contingent valuation and stated-choice experiments.
  • Survey research: declared priorities, vote intention, satisfaction, and willingness to act.
  • Psychology and health: self-reported attitudes, intentions, and treatment preferences.
  • Product research: surveys about features or purchases not yet available.
  • Machine learning: a user or model reports a ranking or policy instead of being observed acting.

Clarity

The abstraction separates a valuation from one method of accessing it. It also completes the evidence-channel pair with Revealed Preference: ask-and-infer versus watch-and-infer. Neither channel is automatically the truth; each has characteristic distortions and blind spots.

Manages Complexity

Preference evidence can be organized by channel rather than by instrument name. Reports supply hypothetical reach but weak incentives; enacted choices supply stakes but are constrained by menus, defaults, and opportunity. The distinction tells an analyst which errors to test before treating either output as the agent's valuation.

Abstract Reasoning

Represent the latent preference as \(P\), the elicitation channel as \(C\), and the recorded report as \(R=f(P,C)\). Inference from \(R\) to \(P\) is warranted only to the extent that the channel response is understood or controlled. Varying wording, incentives, or response format tests how much of the record belongs to the preference and how much to the channel.

Knowledge Transfer

The operation transfers anywhere a report substitutes for behavior: from contingent valuation to polling, patient choice, user research, and preference elicitation for intelligent systems. What transfers is the evidence rule and its trade: access to the hypothetical in exchange for reliance on a low-cost, channel-mediated signal.

Example

A city asks residents how much they would pay to preserve a wetland that has no market price. The answers expose valuations that purchases cannot reveal, but the estimate depends on the payment scenario, wording, and whether respondents face any real consequence. The result is a stated preference, not a market demand trace.

Relationships to Other Abstractions

Local relationship map for Stated PreferenceParents appear above the current abstraction, mutual partners to the right, and children below. Node labels state whether each abstraction is prime or domain-specific; colors identify relation types.Stated PreferencePRIMEPrime abstraction: Elicitation Channel Contribution — includes, typicalElicitation Cha…PRIMEPrime abstraction: Preference — presupposesPreferencePRIMEPrime abstraction: Stated–Revealed Preference Gap — includesStated–RevealedPreference GapPRIME

Current abstraction Stated Preference Prime

Parents (2) — outgoing typed relations

  • Stated Preference includes, typical Elicitation Channel Contribution Prime

    A stated-preference estimate usually contains a systematic contribution from the question, prompt, scale, or protocol through which the report was elicited.

  • Stated Preference presupposes Preference Prime

    Stated Preference presupposes an underlying preference because the solicited report is evidence about an ordering, not the ordering itself.

Children (1) — abstractions linked here by typed relations

  • Stated–Revealed Preference Gap Prime includes Stated Preference

    The gap contains the report-based estimate whose output is compared with behavior under a real choice opportunity.

Hierarchy paths (3) — routes to 3 parentless roots

Distinction from Neighbors

Revealed Preference infers valuation from costly observed choice and can be distorted by constraints or framing. Elicitation Channel Contribution explains why a report can partly reflect its instrument. Cheap Talk concerns strategic communication without binding cost; a stated preference can be sincere yet inaccurate or channel-shaped.