Perfectly Confident

An expert on the psychology of decision making at Berkeley's Haas School of Business considers how to calibrate examines the importance of being confident, arguing that confidence is good, but overconfidence can hinder growth.
A surge of confidence can feel fantastic—offering a rush of energy, even a dazzling vision of the future. It can give us courage and bolster our determination when facing adversity. But if that self-assurance leads us to pursue impossible goals, it can waste time, money, and energy. Self-help books and motivational speakers tell us that the more confident we are, the better. But this way of thinking can lead to enormous trouble.

Decades of research demonstrates that we often have an over-inflated sense of self and are rarely as good as we believe. Perfectly Confident is the first book to bring together the best psychological and economic studies to explain exactly what confidence is, when it can be helpful, and when it can...