<p>Human and animal sunk costs often aren’t, and sunk cost bias may be useful on an individual level to encourage learning. Convincing examples of sunk cost bias typically operate on organizational levels and are probably driven by non-psychological causes like competition.</p>
"No, waiter, I do not want to pay £1.23 per person extra for my dinner to help save the planet from climate change while helping poor communities plant fruit trees."
Passive investors are like customers who prefer a more hands-off approach. These customers opt to visit well-established stalls, follow the crowds, and make purchases based on the popularity and reputation of the items