Overconfidence Bias in Financial Planning

Overconfidence bias leads people to overestimate their knowledge, abilities, and the accuracy of their predictions. In finance, this manifests as overestimating investment returns, underestimating expenses, overestimating savings discipline, or believing you can time the market better than professionals. People tend to be more confident about their financial future than statistics warrant, leading to underfunded retirements or inadequate emergency savings. Countering this bias requires building in safety margins, seeking professional advice, testing assumptions against historical data, and regularly reviewing outcomes against predictions to calibrate expectations more realistically.

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