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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 (29.2%)
  • Survivorship bias 122 votes (26.6%)
  • The sunk cost effect 138 votes (30.1%)
  • Anchoring 65 votes (14.2%)

Total votes: 459

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.