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7 Psychological habits

1. Overconfidence and optimism

Most of us are way too confident about our ability to foresee the future, and overwhelmingly too optimistic in our forecasts.

This finding holds across all disciplines, for both professionals and non-professionals, with the exceptions of weather forecasters and horse handicappers.

Lesson: Learn not to trust your gut.

2. Hindsight

We consistently exaggerate our prior beliefs about events.

Market forecasters spend a lot of time telling us why the market behaved the way it did. They’re great at telling us we need an umbrella after it starts raining as well, but it doesn’t improve our returns. We’re all useless at remembering what we used to believe.

Lesson: Keep a diary, revisit your thinking constantly.

3. Loss aversion

We hurt more when we sell at a loss than we feel happy when we (more…)