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Confirmation Bias
What Is Confirmation Bias?
Confirmation bias is the tendency to seek out, interpret, and remember information that supports existing beliefs while ignoring or dismissing conflicting evidence.
Why It Matters
Confirmation bias can lead to poor financial decisions by reinforcing incorrect assumptions. It limits objectivity and prevents people from adjusting their strategy when needed.
How Confirmation Bias Works
This bias shows up when people:
- only consume information that supports their views
- ignore negative data or warnings
- interpret neutral information as supportive
- avoid challenging their assumptions
- become overconfident in decisions
It creates a feedback loop that strengthens belief—even if it’s wrong.
Example
An investor believes a company is a great investment and only reads positive news, ignoring signs of declining performance.
Confirmation Bias vs Information Bias
- Confirmation bias filters information to match beliefs.
- Information bias involves gathering excessive or unnecessary data.
FAQs About Confirmation Bias
Is confirmation bias common?
Yes, it affects nearly everyone.
Can it impact investing performance?
Yes, significantly.
How can I reduce it?
Actively seek opposing viewpoints.
Related Terms
