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Behavioral Economics
Table of Contents
People choose what default and friction make easy, not what a neat lecture said they should pick.
Key Concept
- People do not act on facts alone - defaults and friction steer choices more than lectures.
- Mental Models gives lenses; this field names why nudges beat sermons.
- A well-designed default beats a well-argued lecture almost every time.
Level 1 - Recognize
Behavioral economics studies how defaults, friction, and context steer choices.
Level 2 - Explain
People do not act on facts alone because the easiest path often beats the best argument.
Level 3 - Use
Put the good option at eye level or make it the default before writing another policy email.
Level 4 - Connect
Nudges can help without lectures, but they can also manipulate; good design keeps choice visible and checks who benefits.
Level 5 - Create
Design and test a better default, then use the results to improve how the choice is offered.
Examples
- The cafeteria put fruit at eye level and salad sales jumped; glad the layout change worked without another wellness sermon.
- Default opt-in to save made more people enroll than the bonus email campaign.
Note Relationships
| Relationship | Wikilink | Reason |
|---|---|---|
| contradicts | First Principles Thinking | when the opposite frame fits better |
| extends | Decision Quality | Defaults and friction shape choices more than facts alone |
| extends | Mental Models | Bias catalog sits inside the wider mental-models shelf |
| extends | Renewed Mind | Culture's defaults steer choices - renewal interrupts the pattern |
| extends | Sunk Cost Fallacy | Sunk cost is the bias that keeps bad bets alive |
