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Ambiguity Aversion

Also Known As: Ellsberg Paradox Uncertainty Aversion
Discourse Mechanics ID: ambiguity_aversion

Definition

The preference for known risks over unknown risks. People prefer options where the probability of outcomes is known (risk) over options where the probability is unknown (ambiguity), even when the ambiguous option might offer better expected outcomes.

Examples

An investor chooses a bond yielding 3% over a stock that could yield 0-10% with an unknown probability distribution, even though the expected return of the stock might be higher.

A hiring manager chooses a familiar but mediocre candidate over an unconventional applicant with an unusual background, even though data suggests non-traditional hires often outperform — the known quantity feels safer.

During a health scare, a patient opts for a standard treatment with a clearly stated 30% success rate over a newer experimental therapy whose outcomes are still being studied, even when early data looks more promising.

Verification Steps
Verification Steps
Binary yes/no questions that an AI must answer to detect a reasoning pattern in a text.
Each of the 452 aspects has verification steps — simple yes/no questions designed to systematically detect whether a pattern appears in a text. For ad hominem: "Does the argument attack a person rather than their claim?" For false dichotomy: "Are only two options presented when more exist?" This ensures consistent, reproducible analysis.

Binary (yes/no) questions an LLM must answer to identify this aspect:

  1. 1

    Is a decision being made under uncertainty?

    Type: binary
  2. 2

    Is an option with known probabilities preferred over an option with unknown probabilities, even when the expected value could be higher?

    Type: binary
  3. 3

    Is the preference driven by discomfort with missing information rather than rational calculation?

    Type: binary
Deep Dive
The expandable detail section on each aspect page with examples, psychology, and counter-strategies.
The Deep Dive section provides in-depth information about each aspect: a real-world example showing the pattern in action, an explanation of why it works psychologically, practical advice on how to counter it, alternative names, and links to related aspects.

Hierarchical Context