Definition
Corollary T2.3: Use Heuristics for Low-Value, Reversible Decisions: For low stakes and easy reversals, heuristics dominate exhaustive analysis.
Derived from
From T2 Cognitive Budget Theorem: /en/wiki/theorem-2-cognitive-budget
Core meaning (zh-aligned)
- Analysis has a cost (time/attention).
- Cost–benefit: analysis cost should not exceed potential gain.
- Heuristics can dominate when stakes are low and reversibility is high.[^1]
Heuristic examples
| Heuristic | When it fits | Rule |
|---|---|---|
| trusted brand | low-stakes daily goods | buy familiar brand |
| satisficing threshold | commodity categories | pick first meeting threshold |
| “middle option | standardized goods | pick mid-tier unless needs say otherwise |
| repeat purchase | known satisfactory item | buy last good one |
When to use heuristics
Use when all hold:
- low value,
- high reversibility,
- small differences among options,
- high info cost.
Do not use when:
- high value or low reversibility,
- asymmetric risk (health/safety),
- large option differences.
References
- Simon, H. A. (1955). A behavioral model of rational choice. Quarterly Journal of Economics, 69(1), 99–18.[source]
- Payne, J. W., Bettman, J. R., & Johnson, E. J. (1993). The Adaptive Decision Maker. Cambridge University Press.[source]