← The Casebook

Case file

Self-Serving Bias

Filed under
Need To Act Fast

The charge

We credit our successes more to skill and effort, and our failures more to bad luck or circumstance.


How it operates

This protects self-esteem and status, and we have easy access to our own intentions and excuses when things go badly.

Logged incidents

  1. Incident 01

    A PM credits product instincts for a growth spike but blames seasonality for a decline.

  2. Incident 02

    A manager treats a good hire as judgment and a bad hire as a weak talent pool.

  3. Incident 03

    A trader calls gains skill and losses market irrationality.

What to watch for

Notice when your explanations for wins and losses conveniently protect your self-image. Ask: 'Would I explain this outcome the same way if someone else got it?'

Recommended action

Keep a decision journal and run after-action reviews that compare predicted versus actual outcomes.

Known associates

Source of record

en.wikipedia.org

File your own case

Open the same case on your own draft.

Paste a memo, a research draft, or a strategy argument. It is scored against all 175 cards, and the strongest two or three risks come back with the evidence quoted and one practical next check.

Open a case on your draft →