Economic and Consumer Biases
Proportionality bias
Expecting big events to have big causes.
What Is Proportionality bias?
Proportionality bias is a thinking trap where expecting big events to have big causes.
How It Tricks You
It can make value, price, ownership, or scarcity feel more objective than they really are.
Real-World Example
A major outage is assumed to have a dramatic cause, not one small error.
Seen Online As
- The fast interpretation is doing more work than the evidence.
- The claim feels obvious before the check question is asked.
- A shortcut is making the judgment feel more certain than it is.
What To Ask Instead
Could a small cause explain this?
Related Thinking Traps
Common Situations
Quick FAQ
What is Proportionality bias?
Expecting big events to have big causes.
What is an example of Proportionality bias?
A major outage is assumed to have a dramatic cause, not one small error.
How do I spot Proportionality bias?
Could a small cause explain this?