Psychologycalendar_todayLast updated: Apr 2026
What is Loss Aversion?
/lɒs əˈvɜːʃən/
The cognitive tendency to prefer avoiding losses over acquiring equivalent gains. Research shows losses feel approximately twice as painful as equivalent gains feel pleasurable.
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Everyday Example
Losing £50 feels roughly twice as bad as finding £50 feels good. This is why people hold losing investments too long (avoiding realising a loss) and sell winning ones too soon (locking in a gain).
publicReal-World Application
“Insurance companies exploit loss aversion by framing products around what you'll lose without cover, rather than what you'll gain with it. "Don't lose your home" converts far better than "Protect your home".”
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Did you know?
Kahneman and Tversky identified loss aversion in their 1979 Prospect Theory paper — one of the most cited papers in economics, which helped Kahneman win the 2002 Nobel Prize.
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Key Insight
Loss aversion evolved for survival — the downside of losing food or shelter was often death. In modern financial decisions, this ancient wiring becomes a liability that costs people enormous amounts over time.
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