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Which of these is a recognised tendency that can cause investors to hold onto a losing investment for too long?

  • Confirmation bias 134 votes (29.0%)
  • Survivorship bias 122 votes (26.4%)
  • The sunk cost effect 140 votes (30.3%)
  • Anchoring 66 votes (14.3%)

Total votes: 462

Answer: C — The sunk cost effect.

Explanation: The more time, money, or emotion we invest in something, the harder it can become to walk away – even when the evidence says we should. It’s one reason removing emotion from the initial screening process can be so valuable.