Self-fulfilling prophecy
A self-fulfilling prophecy is a belief or prediction that, simply by being acted upon, brings about the outcome it predicted, even though the belief was false or unfounded when it was first held.
- 1 min read
- 6 linked ideas
Why does self-fulfilling prophecy happen?
Beliefs guide action, and action changes the world. If you expect a colleague to be hostile, you may greet them coolly, which invites the coolness you anticipated. The sociologist Robert K. Merton, who named the idea in 1948, stressed that the original belief is a false definition of the situation that becomes true through the behaviour it provokes. Because the outcome does arrive, it looks like proof that the prediction was right all along, and the loop that produced it stays hidden.
What does self-fulfilling prophecy look like in real life?
- Merton’s illustration: rumours that a sound bank is failing send depositors rushing to withdraw, and the run makes it fail.
- Expecting a first date to go badly, behaving guardedly, and leaving a stiff impression that confirms the fear.
- Shoppers who expect a shortage stockpiling an item until the shelves really are empty.
How do you counter self-fulfilling prophecy?
- When a prediction comes true, ask whether your own response to it helped produce the result.
- Test negative expectations with a small, deliberately open action before treating them as fact.
- In teaching and management, set expectations from evidence, not first impressions or stereotypes.
Frequently asked
- What is a self-fulfilling prophecy in simple terms?
- It is a prediction that comes true because people believed it and acted accordingly. Without the belief, the outcome would not have happened; the belief set in motion the very behaviour that made it real.
- What is an example of a self-fulfilling prophecy?
- A classic one is a bank run. If enough customers believe a healthy bank is about to collapse and withdraw their savings at once, the bank runs out of cash and does collapse, apparently confirming the rumour.
- Who coined the term self-fulfilling prophecy?
- The American sociologist Robert K. Merton introduced the term in a 1948 essay in The Antioch Review, describing how a false definition of a situation can evoke new behaviour that makes the false conception come true.
- What is the difference between a self-fulfilling prophecy and the Pygmalion effect?
- The Pygmalion effect is a specific kind of self-fulfilling prophecy, where one person’s high expectations of another, such as a teacher’s of a pupil, raise that person’s performance. Self-fulfilling prophecy is the broader idea.
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Cite this page
ReadGlobe. (2026). Self-fulfilling prophecy. https://readglobe.com/bias/self-fulfilling-prophecy/
"Self-fulfilling prophecy." ReadGlobe, 24 Oct. 2026, readglobe.com/bias/self-fulfilling-prophecy/.
Editorial synthesis © ReadGlobe 2026, drawing on Kahneman’s Thinking, Fast and Slow, the Tversky–Kahneman research program, and the primary cognitive-science literature. · Last reviewed 2026-10-24.