Why Women Aren’t Less Confident — They Calibrate Decisions

Imagine being paid to guess—and to bet on how sure you are. The room hums. Some people slap down large wagers like they own certainty. Others slice their bets, cautious and precise. It sounds like a parlor game. But the pattern that emerged in a recent study is anything but trivial.

Economist Dan Ross and colleagues set out to test a pervasive claim: that women lack confidence compared with men. Instead of asking people how confident they feel, the researchers paired a standard cognitive test with a market-like betting mechanism. Participants answered questions and then allocated real money across their answers according to how confident they felt. If you were absolutely sure, you could place a big bet and reap a large reward; if you were unsure, you could hedge and protect yourself from losses. The trick was this: the most profitable strategy was not maximum bravado but accurate calibration between belief and reality.

The results surprised many. Women consistently made choices that matched their true probability of being correct. Men did not. Men tended to overbet on incorrect answers—classic overconfidence—while women split stakes or held back when doubt crept in. The consequences were tangible: better financial outcomes for those who judged their uncertainty realistically, and heavier losses for those who mistook feeling sure for being right.

Well-calibrated confidence, not loud confidence, produced the best results.

Why does calibration matter? Because real-world decisions—hiring, project investment, crisis response—are rarely solved by bravado. They require a reliable internal compass: knowing when you truly understand a problem, when you need more data, and when a bold move is warranted. The study's authors argue that women in this experiment were not less confident; they were more accurate in estimating probabilities and aligning action to uncertainty.

That has implications for how organizations read confidence. A rapid-fire declarative answer can look like leadership. It can also be a gamble. If evaluation systems favor visible certainty over sensible risk management, companies may inadvertently reward people who overplay weak information. Conversely, leaders who hedge or qualify their judgments can be mistaken for indecision, even though they preserve resources and reduce downside exposure.

Dan Ross and his team urge a rethink of hiring and promotion signals. Measure decision quality. Look for calibration. Test how people update beliefs when presented with new evidence. Those are better predictors of long-term performance than the volume of one's self-assurance.

The study appears in the Journal of Political Economy. It reframes the so-called confidence gap not as a deficit but as a different wiring of judgment—one that, under the right metrics, may be an organizational advantage. So the next time confidence is used as shorthand for leadership, ask: are we rewarding noise or accuracy?